Tutorial Stars

Why I Started Using a VPN Every Day (And Why You Probably Should Too)

Most people think VPNs are only for tech experts or hackers.

Honestly, I used to think the same.

But after seeing how much personal data gets tracked online — from public Wi-Fi monitoring to websites collecting browsing activity — I realized basic online privacy is no longer optional.

Now I use a VPN daily for 3 simple reasons:

🔒 1. Protect Personal Data

Whether you’re using café Wi-Fi, airport internet, or even your home network, your activity can still be exposed. A VPN encrypts your connection and helps keep your information private.

🌍 2. Browse Without Restrictions

Some websites, apps, and streaming content are limited by region. A VPN lets you access content more freely while staying secure.

🎬 3. Stream & Download Safely

Streaming, gaming, or downloading without protection can expose your IP and slow your experience. A reliable VPN adds an extra layer of safety and stability.

After trying several options, I found Symlex VPN to be simple, fast, and affordable — especially for long-term plans.

👉 Official Pricing: https://symlexvpn.com/price

Use Promo Code: AP2010

Best Deals:

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Lifetime Package: https://pay.symlexvpn.net/checkout/19055?referral=ZkBU

The internet isn’t getting safer.Protecting yourself online should be as normal as locking your front door.

#staysafeonline #protectyourself #securebrowsing #streaming #staysafe #staysecureonline #vpn

| এপ্রিল ২৩, ২০২৬

Top 10 Reasons Symlex VPN is the Most Affordable VPN Service in 2026

Why is Symlex VPN the Most Affordable VPN?

Instead of cutting corners, team Symlex VPN focuses on efficiency, smart pricing, and customer-first policies. It’s not just cheap, it’s genuinely the best affordable VPN service because it balances cost with value. We have published a newsletter on LinkedIn that shows how Symlex VPN is cutting costs, not corners. You can read that and subscribe to more updates on new VPN features, offers, and news!

Why Affordability Matters in VPN Service?

Free VPNs are available, but often come with significant risks—such as data logging, selling user data to third parties, and poor performance. Then, expensive VPNs are overkill for single tasks in daily life. Affordability makes the security benefits of VPN accessible to anyone: students, professionals, or startup organizations! For example— are you streaming Netflix, securing your online banking, or just browsing without being tracked? You need a reliable and affordable VPN service from us! The balance of AES-256 encryption, a no-logs policy, and essential features at a reasonable price for VPN packages. The price and benefits issues are permanently solved by the introduction of affordable VPN by companies like Symlex VPN.

💡 Here’s the Catch:
Many VPNs charge premium rates for features that should be standard. Symlex VPN flips the script by offering premium VPN features at budget-friendly prices. That’s why it’s often ranked as the best affordable VPN—because it makes online security accessible to everyone, not just tech geeks with deep pockets.

10 Reasons Symlex VPN is the Most Affordable VPN in 2026

Reason 1. Budget-friendly Pricing Plans

Flexible pricing plans? Yes— our plans fit every budget. We serve students looking for the best affordable VPN or professionals who need coverage across multiple devices. All the plans are designed to be wallet-friendly. That means there will be no hidden fees, no sneaky upsells. We even introduced a free VPN service that provides you with access to premium servers. You can check the service first, and make a purchase decision later.

Reason 2. Exclusive Lifetime Package

One of the spots where Symlex VPN really shines is its ‘lifetime plan”. We recently had a subscriber who bought the lifetime VPN plan after using the 1-month package twice! Why? The lifetime package is a game-changer. Imagine paying once and enjoying secure browsing forever. That’s why it’s the ultimate deal for anyone who hates recurring subscriptions.

Reason 3. Multiple Device Coverage

Today, everyone relies on phones, computers, TV, smart home systems, and other devices. So, we thought — why pay extra for each device? Connect multiple devices to a single Symlex VPN plan. Each of our plans support up to 5 devices. This makes it the most affordable VPN for families or small businesses.

Reason 4. High Speed without Limitation

Affordable doesn’t mean slow or compromise in quality. Get blazing-fast speeds without bandwidth caps or ISP throttling. All our servers can handle a continuous load of 10 GB/s! Hence, streaming, gaming, or video calls—everything runs smoothly. That’s why it’s often called the best affordable VPN service for streaming. We will tell you how users watch Netflix and Disney+ with SYmlex vpn in the later section! Stay tuned in!

Reason 5. Integrated Premium Features

Symlex VPN doesn’t strip down features to cut costs. You still get premium perks like kill switch, split tunneling, and advanced encryption. It’s proof that an affordable VPN can still be premium. Besides, we are adding extra features frequently to the apps. Need an example?

You do not need to install a separate speedometer to measure the bandwidth passed through the VPN. The Symlex VPN dashboard provides a detailed view of your connection speed and latency.

Reason 6. Money-back Guarantee

Worried about wasting money? Symlex VPN offers a solid money-back guarantee. You do not like our app after your first try —yes, you can leave without question. In this way, we have built trust and shown confidence in their service. It’s another reason why it’s the best affordable VPN.

Reason 7. Uncompromising AES 256 Protection

Security is non-negotiable, my friend! Symlex VPN uses AES 256-bit encryption, considered the gold standard in cybersecurity in 2026. There is the V2ray protocol that keeps you anonymous from cyber criminals and government censorship. The new, obscure OpenVPN can bypass China’s Great Firewall. Even though it’s an affordable VPN service, it doesn’t compromise on protection.

Reason 8. Frequent Special Offers & Discounts

Symlex VPN frequently rolls out VPN discounts and seasonal offers. As a result, the app becomes even more accessible to people who want the best affordable VPN services without breaking the bank.

In February 2026, 4 offers were running for special days, including Chinese New Year, Ramadan, and Valentine’s Day. Users can be notified about offers through their in-app banner, push notifications, email newsletter, website pop-ups, and social media handles. Did you follow us on social media yet? Hurry!

Reason 9. Global Server Coverage

Symlex VPN has 1000+ servers worldwide, giving you access to content from anywhere. Netflix US, Disney+, BBC iPlayer, Kayo Sports: locked out of your region? No problem! Basically, every corner of the streaming universe is unlocked with Symlex VPN. It’s the most affordable VPN with worldwide reach.

Reason 10. Dedicated Live Support

Customer support is often overlooked, but Symlex VPN nails it. Here is 24/7 live support, so you’re never stuck! It means you get help whenever you need it. Custom support agents work by keeping a routine. They can show you or guide you towards a solution to any problem. There are also blogs and videos on the use of Symlex VPN in different situations. Plus, there are introduction guides for each feature of Symlex VPN.

How Does Symlex VPN Make Netflix & Disney+ Affordable?

One sad reality is— streaming platforms are getting pricier every year. But here’s the fun part: Symlex VPN makes Netflix and Disney+ more affordable by unlocking cheaper regional subscriptions. For example, Netflix costs half as much in some countries as it does in the US. We made a list of the cheapest Netflix countries in a blog. By using Symlex VPN, you can subscribe from those regions and save big.

➝ Install Symlex VPN.
➝ Change location to the cheaper country.
➝ Access the platform you need to purchase.

📝 Note: For the ability to provide legit user IP of other locations, people call Symlex VPN the best affordable VPN service for streaming. Imagine paying less for Netflix and still enjoying the same shows. That’s a win-win! More importantly, this is not a violation of law. For example, you need a virtual location of India when you are studying in Canada as an Indian immigrant. That’s how you can use your local payment gateway and pay the price for Netflix India! Others can use dual currency cards. It’s that simple!

How to Make VPN Service Affordable and Cheaper: Tips

If you’re still wondering how to maximize savings, here are some tips:

— Go for Long-term Plans: Monthly subscriptions add up quickly, but annual or lifetime packages save you more. You can take our monthly pack as an example. $7.99/month is a bit higher because server maintenance costs are high for a limited time. But you can buy an annual plan for $3.29/month, as your long-term payments help us keep it affordable.

— Keep an Eye on Discounts: Symlex VPN often runs promotions that make it the most affordable VPN at the time. Think of our recent New Year plans. There was a coupon code, “N50,” that reduced prices by up to 50% on all plans! We have a dedicated web page to track all the discounts. Sometimes, recurring users message us to get personalized discounts! Do you need something for yourself? Contact us and let us know!— Compare Features: Don’t just look at price—make sure you’re getting the best affordable VPN services with strong security and speed. Our app is featureful; you cannot get anything less than the best VPN services available worldwide. Our competitors are NordVPN, Surfshark VPN, and ExpressVPN.

💡 Fun Fact: Imagine bragging to your friends that you got lifetime or yearlong VPN protection for less than the cost of a fancy dinner. That’s how we create plans— affordable, reliable, and unbeatable! No need to check the “best affordable VPN Reddit” threads if you have ever tested our apps from the Play Store and the App Store. Our real users share hacks and deals on our review page to help you save even more!

Recommendation

If you’re tired of overpriced VPNs, Symlex VPN is your answer. It’s not just the best affordable VPN, it’s the best and most affordable VPN that balances cost, speed, and security altogether—all the time! So, if you’re hunting for an affordable VPN service in 2026, stop scrolling and start securing your internet with Symlex VPN. It’s the most affordable VPN that actually delivers what it promises. And honestly, who doesn’t love saving money while staying safe online?

vuejs | ডিসেম্বর ২১, ২০২৪

Dynamic Component Rendering in Vue.js Based on User Selection

This Vue.js code demonstrates how to dynamically load different components based on a selected category. Below is an explanation of the key parts of the code and why they are used:

<template>
  <div>
    <!-- Dropdown to select category -->
    <select v-model="selectedCategory">
      <option 
        v-for="category in categories" 
        :key="category" 
        :value="category">
        {{ category }}
      </option>
    </select>
    <!-- Dynamically load the component -->
    <component :is="currentComponent"></component>
  </div>
</template>

<script>
import Component1 from './Component1.vue';
import Component2 from './Component2.vue';
import Component3 from './Component3.vue';
export default {
  components: {
    Component1,
    Component2,
    Component3,
  },
  data() {
    return {
      selectedCategory: 'Category 1', // Default selected category
      categories: ['Category 1', 'Category 2', 'Category 3'], // List of categories
    };
  },
  computed: {
    // Dynamically return the component based on the selected category
    currentComponent() {
      const mapping = {
        'Category 1': 'component1',
        'Category 2': 'component2',
        'Category 3': 'component3',
      };
      return mapping[this.selectedCategory] || 'component1'; // Default to Component1
    },
  },
};
</script>

Template Explanation:

1. Dropdown to Select Category

<select v-model="selectedCategory">
  <option 
    v-for="category in categories" 
    :key="category" 
    :value="category">
    {{ category }}
  </option>
</select>

Purpose:

Provides a dropdown menu that allows the user to select a category.

The v-model="selectedCategory" binds the selected value to the selectedCategory data property.

Why v-for?:

Dynamically generates options from the categories array. Each option displays a category, and :value="category" ensures that the selected value is bound to the selectedCategory property.

2. Dynamic Component Loading

<component :is="currentComponent"></component>

Purpose:

Dynamically renders a Vue component based on the value of the currentComponent computed property.

The :is attribute specifies which component to display. It accepts a string representing the name of the component or a component object.

Script Explanation

1. Data Section

data() {
  return {
    selectedCategory: 'Category 1', // Default selected category
    categories: ['Category 1', 'Category 2', 'Category 3'], // List of categories
  };
},

selectedCategory:

Tracks the currently selected category. The default value is 'Category 1'.

This value changes when the user selects a different category from the dropdown.

categories:

Holds the list of available categories.

Used to generate the dropdown options dynamically.

2. Components Section

components: {
  Component1,
  Component2,
  Component3,
},

Purpose:

Registers the imported components (Component1, Component2, Component3) so they can be used in the template.

3. Computed Property

computed: {
  currentComponent() {
    const mapping = {
      'Category 1': 'component1',
      'Category 2': 'component2',
      'Category 3': 'component3',
    };

return mapping[this.selectedCategory] || 'component1'; // Default to Component1

Purpose:

Dynamically determines which component to load based on the selectedCategory value.

The mapping object maps category names to component names.

Why computed?:

computed properties are reactive and automatically update when selectedCategory changes.

It ensures that the correct component is dynamically loaded without requiring manual updates.

Why a mapping object?:

Provides a cleaner and more scalable way to associate categories with components.

Makes it easy to add or modify category-to-component mappings without complex if-else statements.

Fallback to 'component1':

Ensures a default component (Component1) is displayed if an invalid category is selected.

How It Works

Initial State:

selectedCategory is set to 'Category 1'.

currentComponent evaluates to 'component1', so Component1 is loaded by default.

User Interaction:

When the user selects a different category (e.g., 'Category 2'), selectedCategory is updated.

The currentComponent computed property automatically updates to 'component2', and Component2 is displayed.

Dynamic Behavior:

The component tag ensures that only the relevant component is rendered based on the current category.

Benefits of This Approach

Modularity:

The components are encapsulated and only loaded when needed.

Scalability:

Adding new categories and components is as simple as updating the categories array and the mapping object.

Efficiency:

computed properties are cached and recomputed only when their dependencies change.

Readability:

The code is clean, and the use of a mapping object eliminates the need for repetitive if-else statements.

| সেপ্টেম্বর ১২, ২০২২

bootstrap-modal-show-only-once-per-visit

https://webdev-il.blogspot.com/2019/06/bootstrap-modal-show-only-once-per-visit.html

Easily Learn Laravel laravel Learn Laravel | সেপ্টেম্বর ০৬, ২০২২

3 Steps to learn Laravel Easily | Laravel Crud Operation with Authentication

Laravel is a strong MVC PHP framework, designed for developers who need a simple and elegant toolkit to bring full- featured web operations. Laravel was created by Taylor Otwell.

This article will guide the developers who want to learn easily Laravel through some simple steps.

3 Steps to learn Laravel Easily:

Step 1: Download laravel and Authentication Screen Setup
Run the following command to download Laravel Latest Vesrion -

composer create-project laravel/laravel project-laravel

Atfer running the above command laravel project will be Downloaded in htdocs folder (Xampp)/ www folder (Wamp). then go in your project folder and run the following two command one by one to setup laravel default Authentication -

composer require laravel/ui
php artisan ui vue –auth

Install Laravel Form Collective:

composer require laravelcollective/html

Step 2: Connect Laravel Project to Database

In this tutorial I am going to use MySQL. So, at first I am going to create a Database "project_laravel". Then create two table name "users" and "subject" in this database.

Now go to your project folder and find .env file (located in your project root folder) and just open this file.

Replace the database name with your database name and user name keep as "root". That's it. Your are now successfully connected your project to MySql server.

Step 3: Create View, Model & Controller File.

Create Route in the web.php file

Route::resource('crud', 'App\Http\Controllers\SubjectController');

Create View File

go to project folder and create a blade file in resources>views. Suppose this blade file name "crud.blade.php". Data will be appends in this file.

Content of view file:

Create Model file

go to project folder and create a model file in app>Models. Suppose this Model file name "Subject.php". Subject related table entity and attribute will be defined here. model for users table will be automatically created while project downloaded. following command will generate the model file.

php artisan make:model Models\Subject

Content of Model file:

Create Controller file

go to project folder and create a model file in app>Http>Controllers. Suppose this Controller file name "SubjectController.php". crud related table entity and attribute will be defined here. Following command will generate the controller file.

php artisan make:controller SubjectController --resource

Content of Controller file:

laravel php php framework | সেপ্টেম্বর ০২, ২০২২

What is Laravel?

Laravel is a strong MVC PHP framework, designed for developers who need a simple and elegant toolkit to bring full- featured web operations. Laravel was created by Taylor Otwell.

This article will guide the developers who want to learn how to develop a system using Laravel. This tutorial is particularly meant for all those developers who have no previous experience of using Laravel.

Prerequisites:
Before you start with Laravel, we consider that you are so much familiar with HTML, Core PHP, and Advance PHP. However, we suggest you to pick tutorials grounded on these concepts first, to gain a better understanding of Laravel, If you are new to any of these concepts.

| মে ০৮, ২০২২

Javascript - validation, numbers only

jQuery('.decimal').on('keydown', function (event) {return isNumberOveride(event, this);});

function isNumberOveride(evt, element) {
	var charCode = (evt.which) ? evt.which : evt.keyCode;
	if ((charCode != 190 \|\| $(element).val().indexOf('.') != -1) // “.” CHECK DOT, AND ONLY ONE.
	&& (charCode != 110 \|\| $(element).val().indexOf('.') != -1) // “.” CHECK DOT, AND ONLY ONE.
	&& ((charCode < 48 && charCode != 8)
	\|\| (charCode > 57 && charCode < 96)
	\|\| charCode > 105))
	return false;
	return true;
	}

| নভেম্বর ২৩, ২০২১

Laravel - Login with username, email or phone with Status

Let's begin with the way to login with username or e mail in laravel 8/7/6 auth. i'm able to come up with easy answer of laravel 7/6 login with username or e mail in authentication. it is smooth to make auth login with username and e mail deal with in laravel 8/7/6 application.

Sometime, we want to create login web page with username or e mail deal with to login. it is super characteristic when you have on your internet site due to the fact it is virtually smooth to bear in mind every person for your purchaser. purchaser if forgot e mail then he has one username. So it is virtually helps.

In laravel 6, i'm able to deliver how you may setup for login with username or e mail step through step. so let's comply with bellow steps.

Step 1: Install Laravel 6

Initially we want to get clean Laravel 6 model utility the use of bellow command, So open your terminal OR command spark off and run bellow command:

composer create-project laravel/laravel example-app

Step 2: Install Laravel UI

You should observe few step to make auth for your laravel 6 utility.

At last go into project folder and open terminal then type and run the following command for running the project.

php artisan serve

Then Create a Table named 'users'.

3.create database and tbl users. insert user data

4.config .env file.

5. then run

composer require laravel/ui

php artisan ui vue --auth

php artisan migrate

6. now project is ready.

7. install laravel collective.

composer require laravelcollective/html

Step 3: Generate Auth Scaffold

Here, we want to generate auth scaffolding in laravel 6 the use of laravel ui command. so, let's generate it via way of means of bellow command:

personal home page artisan ui bootstrap --auth

Now you want to run npm command, in any other case you cannot see higher format of login and sign in page.

Install NPM:

npm install

Run NPM:

npm run dev

Step 4: Add Username Column

Now upload new column username on your customers table, so that you can in reality replace your migration as like bellow.

migration

Now you could run migration

personal home page artisan migrate

Step 5: Update Login View

Laravel has created default login blade file. we want to feature comman username subject on it and cast off e mail subject. so let's replace like as bellow:

Just add field "username" and "status" in User Table.

Add these field name in User Model.

Make Change in Login Page "email" to "username" and type="email" to type="text"

then edit LoginController.php

add

use Illuminate\Http\Request;

then add

public function username()

{

return "username";

}

/**

* Get the needed authorization credentials from the request.

* @param \Illuminate\Http\Request $request

* @return array

protected function credentials(Request $request)

{

//return $request->only($this->username(), 'password');

return ['username'=>$request->{$this->username()},'password'=>$request->password,'status'=>'1'];

}

File should be like this:

<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;

use App\Providers\RouteServiceProvider;

use Illuminate\Foundation\Auth\AuthenticatesUsers;

use Illuminate\Http\Request;

class LoginController extends Controller

{

|--------------------------------------------------------------------------

| Login Controller

|--------------------------------------------------------------------------

| This controller handles authenticating users for the application and

| redirecting them to your home screen. The controller uses a trait

| to conveniently provide its functionality to your applications.

use AuthenticatesUsers;

/**

* Where to redirect users after login.

* @var string

protected $redirectTo = RouteServiceProvider::HOME;

/**

* Create a new controller instance.

* @return void

public function __construct()

{

$this->middleware('guest')->except('logout');

}

public function username()

{

return "username";

}

/**

* Get the needed authorization credentials from the request.

* @param \Illuminate\Http\Request $request

* @return array

protected function credentials(Request $request)

{

//return $request->only($this->username(), 'password');

return ['username'=>$request->{$this->username()},'password'=>$request->password,'status'=>'1'];

}

Thats it.

| জানুয়ারি ২৫, ২০২১

Litebox Image Gallery Using PHP

<?php

include("header.php");

<style>

#imgTest:hover{

box-shadow: 0px 0px 10px 2px rgba(0,0,0,1);

}

</style>

<h3>Gallery</h3>

<ul>

<li>Gallery</li>

</ul>

</div>

</section>

<?php

$sl = 1;

$get = mysql_query("SELECT * FROM `gallery` ORDER BY `i_id` DESC ");

while($data = mysql_fetch_array($get)){

<a class="example-image-link" href="images/<?php echo $data["i_image"];?>" data-lightbox="example-set" data-title="Click anywhere outside the image or the X to the right to close."><img id="imgTest" class="example-image img-thumbnail" src="images/<?php echo $data["i_image"];?>" alt="" style="width:230px; height:180px; margin:10px;"/></a>

</div>

<?php

//$sl++;

}

</div>

</section>

<?php

include("footer.php");

array functions php | জুন ১৯, ২০২০

The 27 Most Useful PHP Array Functions.

Now, we know What is Array in PHP? and how it work in PHP. After creating an array we need to count values in array, sort arrays by their contents, convert them between strings and arrays, find unique values, search within arrays, compare arrays to other arrays and more.

By using array functions we can easily access and manipulate an array. In following I am going to describe array function with example.

Note that the following array function is mostly used in PHP array to access and manipulate the arrays.

is_array():

This function is used to find whether a variable is an array or not.

Syntax:

is_array($variable_name);

Example 1:

<?php

$array=array('x','y','z');

if (is_array($array)){

echo 'Yes! It is an array.';

}else{

echo 'No! It is not an array.';

}

?>

Output of the above program:

Yes! It is an array.

Example 2:

<?php

$mark = [

'id' => 1027,

'name' => 'John Abhram',

'class' => 'Class ten',

[ 'gender' => 'male',

[

'bangla' => '100',

'english' => '95',

'mathematics' => '85'

],

'country' => 'bangladesh'

]

];

$array1 = is_array($mark);

$array2 = is_array($mark['roll']);

$array3 = is_array($mark[0]);

echo $array1 ? 'The $mark variable is an array<br>' : 'The $mark variable is not an array<br>';

echo $array2 ? 'The "id" key of the $mark variable is an array<br>' : 'The "id" key of the $mark variable is not an array<br>';

echo $array3 ? 'The 0 index of the $mark variable is an array<br>' : 'The 0 index of the $mark variable is not an array<br>';

?>

Output of the above program:

The $mark variable is an array<br>

The "id" key of the $mark variable is not an array<br>

The 0 index of the $mark variable is an array<br>

in_array():

This function searches in an array for a specific value. It returns TRUE if this specific value is found in the array, or FALSE otherwise.

Syntax:

in_array($value, $array);

Example :

<?php

$subjects = array("English", "Mathematics", "Biology");

if (in_array("Mathematics", $subjects)) {

echo "Subject Mathematics is exist";

}

if (in_array("Biology", $subjects)) {

echo "Subject mathematics is exist";

}

?>

Output of the above program:

Subject Mathematics is exist

array_unique():

This function helps to remove duplicate values from an array. The first appearance will be kept when two or more array values are the same and the other will be removed.

Syntax:

array_unique($array);

Example :

<?php

$subjects = array("array1" => "Bangla", "English", "array2" => "Bangla", "English", "Mathematics");

$result = array_unique($subjects);

print_r($result);

?>

Output of the above program:

Array ( [array1] => Bangla [0] => English [2] => Mathematics )

array_search():

This function search an array for a specific value and returns the key. It returns the key if the value found and false otherwise.

Syntax:

array_search($value, $array);

Example :

<?php

$array = array("x"=>"Bangla","y"=>"Turorial","z"=>"Stars");

print_r(array_search("Turorial", $array));

?>

Output of the above program:

y

array_reverse():

This array function return an array in reverse order with this array elements.

Array Counting Functions:

There are some array functions those are related to counting values or dealing with numbers. We can count the number of values in an array and also return the maximum or minimum value and others useful operations.

count():

Using this function we can know how many values are presented in a array.

Example 1:

<?php
$a=array("Television","Radio","Radio","Television","Computer");
print_r(array_count_values($a));
?>

Output of the above program:

Array (
[Television] => 2
[Radio] => 2
[Computer] => 1
)

PHP - Sort Functions For Arrays:

sort():

This function sort arrays in ascending order.

Syntax:

sort($array);

Example 1:

<?php
$people = array("American", "China", "Indian");
sort($people);

$array_length = count($people);

for($i = 0; $x < $array_length; $i++) {
echo $people[$i];
echo "<br>";
}
?>

Output of the above program:

American
China
Indian

rsort():

This function sort arrays in descending order.

Syntax:

rsort($array);

Example 1:

<?php
$people = array("American", "China", "Indian");
rsort($people);

$array_length = count($people);

for($i = 0; $x < $array_length; $i++) {
echo $people[$i];
echo "<br>";
}
?>

Output of the above program:

Indian

China

American

asort():

This function sort associative arrays in ascending order, according to the value.

Syntax:

asort($array);

Example 1:

<?php
$prices = array("Computer"=>"35k", "Laptop"=>"37k", "Radio"=>"2k");
asort($prices);

foreach($prices as $key => $value) {
echo "Key=" . $key . ", Value=" . $value;
echo "<br>";
}
?>

Output of the above program:

Key=Computer, Value=35k
Key=Laptop, Value=37k
Key=Radio, Value=2k

ksort():

This function sort associative arrays in ascending order, according to the key.

Syntax:

ksort($array);

Example 1:

<?php
$prices = array("Computer"=>"35k", "Laptop"=>"37k", "Radio"=>"2k");
ksort($prices);

foreach($prices as $key => $value) {
echo "Key=" . $key . ", Value=" . $value;
echo "<br>";
}
?>

Output of the above program:

Key=Radio, Value=2k
Key=Computer, Value=35k
Key=Laptop, Value=37k

arsort():

This function sort associative arrays in ascending order, according to the key.

Syntax:

arsort($array);

Example 1:

<?php
$prices = array("Computer"=>"35k", "Laptop"=>"37k", "Radio"=>"2k");
arsort($prices);

foreach($prices as $key => $value) {
echo "Key=" . $key . ", Value=" . $value;
echo "<br>";
}
?>

Output of the above program:

Key=Laptop, Value=37k
Key=Computer, Value=35k
Key=Radio, Value=2k

krsort():

This function sort associative arrays in descending order, according to the key.

Syntax:

krsort($array);

Example 1:

<?php
$prices = array("Computer"=>"35k", "Laptop"=>"37k", "Radio"=>"2k");
arsort($prices);

foreach($prices as $key => $value) {
echo "Key=" . $key . ", Value=" . $value;
echo "<br>";
}
?>

Output of the above program:

Key=Radio, Value=2k
Key=Laptop, Value=37k
Key=Computer, Value=35k

Converting Between Arrays and Strings:

implode()

This function join array elements with a string.

Syntax:

implode(separator, $array);

Example 1:

<?php
$array = array('Hello','world','This is Tutorial', 'Stars!');
echo implode(" ",$array);
?>

Output of the above program:

Hello world This is Tutorial Stars!

explode()

This function break a string into an array.

Syntax:

explode(separator,string,limit)

Example 1:

<?php
$array = "Hello world This is Tutorial Stars";
print_r (explode(" ",$array));
?>

Output of the above program:

Array (
[0] => Hello
[1] => world
[2] => This
[3] => is
[4] => Tutorial
[5] => Stars
)

General Manipulation Functions:

array_key_exists():

This function check if the key exists in an array.

Syntax:

array_key_exists(key, array)

Example 1:

<?php
$array = array("laptop"=>"ASUS PRO BOOK","radio"=>"Radio 2");
if (array_key_exists("laptop",$array)) {
echo "This key exists.";
} else {
echo "This key does not exist.";
}
?>

Output of the above program:

This key exists.

array_keys():

This function is used to see all of the keys of the array, but not the values.

Syntax:

array_keys($array);

Example 1:

<?php
$array = [ 'laptop' => 'ASUS', 'television' => 'SONY', 'motherboard' => 'GIGABYTE', ];
$arrayKeys = array_keys($array);
print_r($arrayKeys);
?>

Output of the above program:

Array (
[0] => laptop
[1] => television
[2] => motherboard
)

array_values():

This function is used to see all of the Values of the array, but not the Keys.

Syntax:

array_values($array);

Example 1:

<?php
$array = [ 'laptop' => 'ASUS', 'television' => 'SONY', 'motherboard' => 'GIGABYTE', ];
$arrayValuues = array_values($array);
print_r($arrayValuues);
?>

Output of the above program:

Array (
[0] => ASUS
[1] => SONY
[2] => GIGABYTE
)

array_push():

This function is used to insert values at the end of an array.

Syntax:

array_push(array, value1, value2, ...);

Example 1:

<?php
$array = array("Computer","Laptop");
array_push($array,"Radio","Television");
print_r($array);
?>

Output of the above program:

Array (
[0] => Computer
[1] => Laptop
[2] => Radio
[3] => Television
)

array_pop():

This function is used to delete the last element of an array.

Syntax:

array_pop(array)

Example 1:

<?php
$array = array("Computer","Laptop", "Radio");
array_pop($array);
print_r($array);
?>

Output of the above program:

Array (
[0] => Computer
[1] => Laptop
)

array_unshift():

This function is used to insert the new element to an array.

Syntax:

array_unshift(array, value1, value2, value3, ...);

Example 1:

<?php
$array = array("p"=>"Computer","q"=>"Radio");
array_unshift($array,"Television");
print_r($array);
?>

Output of the above program:

Array ( [0] => Television [p] => Computer [q] => Radio )

array_splice():

This function is used to remove elements from an array and replace it with new elements.

Syntax:

array_splice(array, start, length, array)

Example 1:

<?php
$array1 = array("p"=>"Computer","q"=>"Laptop","r"=>"Radio","s"=>"Television");
$array2 = array("p"=>"Desktop","q"=>"Satteliate"); array_splice($array1,0,2,$array2); print_r($array1);
?>

Output of the above program:

Array ( [0] => Desktop [1] => Satteliate [r] => Radio [s] => Television )

array_merge():

This function is used to merge two arrays into one array:.

Syntax:

array_merge($array1, $array2);

Example 1:

<?php
$array1 = [ 'Television', 'Radio', 'Satellite' ];
$array2 = [ 'Telegram', 'Tutorial', 'Stars' ];
$combine = array_merge($array1, $array2);
echo '<pre>';
print_r($combine);
?>

Output of the above program:

Array (
[0] => Television
[1] => Radio
[2] => Satellite
[3] => Telegram
[4] => Tutorial
[5] => Stars
)

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Recommendation

Dynamic Component Rendering in Vue.js Based on User Selection

Template Explanation:

1. Dropdown to Select Category

Purpose:

Why v-for?:

2. Dynamic Component Loading

Purpose:

Script Explanation

1. Data Section

selectedCategory:

categories:

2. Components Section

Purpose:

3. Computed Property

Purpose:

Why computed?:

Why a mapping object?:

Fallback to 'component1':

How It Works

Initial State:

User Interaction:

Dynamic Behavior:

Benefits of This Approach

Modularity:

Scalability:

Efficiency:

Readability:

is_array():

is_array($variable_name);

<?php $array=array('x','y','z'); if (is_array($array)){ echo 'Yes! It is an array.'; }else{ echo 'No! It is not an array.'; } ?> Output of the above program: Yes! It is an array.

in_array():

in_array($value, $array);

<?php $subjects = array("English", "Mathematics", "Biology"); if (in_array("Mathematics", $subjects)) { echo "Subject Mathematics is exist"; } if (in_array("Biology", $subjects)) { echo "Subject mathematics is exist"; } ?> Output of the above program: Subject Mathematics is exist

array_unique($array);

<?php $subjects = array("array1" => "Bangla", "English", "array2" => "Bangla", "English", "Mathematics"); $result = array_unique($subjects); print_r($result); ?> Output of the above program: Array ( [array1] => Bangla [0] => English [2] => Mathematics )

array_search($value, $array);

<?php $array = array("x"=>"Bangla","y"=>"Turorial","z"=>"Stars"); print_r(array_search("Turorial", $array)); ?> Output of the above program: y

array_reverse($array);

<?php $array = array("x"=>"Bangla","y"=>"Turorial","z"=>"Stars"); print_r(array_reverse($array)); ?> Output of the above program: Array ( [z] => Stars [y] => Turorial [x] => Bangla )

array_map(myfunction, array1, array2, array3, ...)

<?php function myfunction($num) { return($num*$num); } $array = array(2,3,4,5,6); print_r(array_map("myfunction",$array)); ?> Output of the above program: Array ( [0] => 1 [1] => 4 [2] => 9 [3] => 16 [4] => 25 )

array_diff($arrayone, $arraytwo)

Array Counting Functions:

count($array);

<?php $a[0] = 1; $a[1] = 3; $a[2] = 5; $result = count($a); print($result); ?> Output of the above program: 3

$technology = [ 'Google', 'Microsoft', 'ASUS', 'GRAMEEN PHONE', 'BANGLALINK', 'Juniper', 'ACER', 'Samsung', 'SYMPHONY' ]; Output of the above program: 9

max(array);. or max(value1, value2, ...); Parameters: array − The array with values. value1, value2 − The values to compare.

<?php echo (max(80, 75, 95, 100, 25, 65, 35)); ?> Output of the above program: 100

min(array);. or max(value1, value2, ...); Parameters: array − The array with values. value1, value2 − The values to compare.

<?php echo (max(80, 75, 95, 100, 25, 65, 35)); ?> Output of the above program: 25

array_rand(array, number). Parameters: array − The specific array. number − The number of random keys to return.

<?php $array = array("p"=>"Television","q"=>"Computer","r"=>"Radio"); print_r(array_rand($array)); ?> Output of the above program: p

<?php $array = array("p"=>"Television","q"=>"Computer","r"=>"Radio"); print_r(array_rand($array, 2)); ?> Output of the above program: Array ( [0] => p [1] => q )

array_count_values($array);

<?php $a=array("Television","Radio","Radio","Television","Computer"); print_r(array_count_values($a)); ?> Output of the above program: Array ( [Television] => 2 [Radio] => 2 [Computer] => 1 )

PHP - Sort Functions For Arrays:

sort($array);

<?php $people = array("American", "China", "Indian"); sort($people); $array_length = count($people); for($i = 0; $x < $array_length; $i++) { echo $people[$i]; echo "<br>"; } ?> Output of the above program: American China Indian

rsort($array);

<?php $people = array("American", "China", "Indian"); rsort($people); $array_length = count($people); for($i = 0; $x < $array_length; $i++) { echo $people[$i]; echo "<br>"; } ?> Output of the above program: Indian China American

asort($array);

<?php

$array=array('x','y','z');

if (is_array($array)){

echo 'Yes! It is an array.';

}else{

echo 'No! It is not an array.';

}

?>

Output of the above program:

Yes! It is an array.

<?php

$subjects = array("English", "Mathematics", "Biology");

if (in_array("Mathematics", $subjects)) {

echo "Subject Mathematics is exist";

}

if (in_array("Biology", $subjects)) {

echo "Subject mathematics is exist";

}

?>

Output of the above program:

Subject Mathematics is exist

<?php

$subjects = array("array1" => "Bangla", "English", "array2" => "Bangla", "English", "Mathematics");

$result = array_unique($subjects);

print_r($result);

?>

Output of the above program:

Array ( [array1] => Bangla [0] => English [2] => Mathematics )

<?php

$array = array("x"=>"Bangla","y"=>"Turorial","z"=>"Stars");

print_r(array_search("Turorial", $array));

?>

Output of the above program:

y

<?php

$array = array("x"=>"Bangla","y"=>"Turorial","z"=>"Stars");

print_r(array_reverse($array));

?>

Output of the above program:

Array ( [z] => Stars [y] => Turorial [x] => Bangla )

<?php

function myfunction($num) {

return($num*$num);

}

$array = array(2,3,4,5,6);

print_r(array_map("myfunction",$array));

?>

Output of the above program:

Array (
[0] => 1
[1] => 4
[2] => 9
[3] => 16
[4] => 25
)

<?php
$a[0] = 1;
$a[1] = 3;
$a[2] = 5;
$result = count($a);
print($result);
?>

Output of the above program:

3

$technology = [
'Google',
'Microsoft',
'ASUS',
'GRAMEEN PHONE',
'BANGLALINK',
'Juniper',
'ACER',
'Samsung',
'SYMPHONY'
];

Output of the above program:

9

max(array);.
or
max(value1, value2, ...);

Parameters:
array − The array with values.
value1, value2 − The values to compare.

<?php
echo (max(80, 75, 95, 100, 25, 65, 35));
?>

Output of the above program:

100

min(array);.
or
max(value1, value2, ...);

Parameters:
array − The array with values.
value1, value2 − The values to compare.

<?php
echo (max(80, 75, 95, 100, 25, 65, 35));
?>

Output of the above program:

25

array_rand(array, number).
Parameters:
array − The specific array.
number − The number of random keys to return.

<?php
$array = array("p"=>"Television","q"=>"Computer","r"=>"Radio");
print_r(array_rand($array));
?>

Output of the above program:

p

<?php
$array = array("p"=>"Television","q"=>"Computer","r"=>"Radio");
print_r(array_rand($array, 2));
?>

Output of the above program:

Array (
[0] => p
[1] => q
)

<?php
$a=array("Television","Radio","Radio","Television","Computer");
print_r(array_count_values($a));
?>

Output of the above program:

Array (
[Television] => 2
[Radio] => 2
[Computer] => 1
)

<?php
$people = array("American", "China", "Indian");
sort($people);

$array_length = count($people);

for($i = 0; $x < $array_length; $i++) {
echo $people[$i];
echo "<br>";
}
?>

Output of the above program:

American
China
Indian

<?php
$people = array("American", "China", "Indian");
rsort($people);

$array_length = count($people);

for($i = 0; $x < $array_length; $i++) {
echo $people[$i];
echo "<br>";
}
?>

Output of the above program:

Indian

China

American

<?php
$prices = array("Computer"=>"35k", "Laptop"=>"37k", "Radio"=>"2k");
asort($prices);

foreach($prices as $key => $value) {
echo "Key=" . $key . ", Value=" . $value;
echo "<br>";
}
?>

Output of the above program:

Key=Computer, Value=35k
Key=Laptop, Value=37k
Key=Radio, Value=2k

<?php
$prices = array("Computer"=>"35k", "Laptop"=>"37k", "Radio"=>"2k");
ksort($prices);

foreach($prices as $key => $value) {
echo "Key=" . $key . ", Value=" . $value;
echo "<br>";
}
?>

Output of the above program:

Key=Radio, Value=2k
Key=Computer, Value=35k
Key=Laptop, Value=37k

<?php
$prices = array("Computer"=>"35k", "Laptop"=>"37k", "Radio"=>"2k");
arsort($prices);

foreach($prices as $key => $value) {
echo "Key=" . $key . ", Value=" . $value;
echo "<br>";
}
?>

Output of the above program:

Key=Laptop, Value=37k
Key=Computer, Value=35k
Key=Radio, Value=2k

<?php
$prices = array("Computer"=>"35k", "Laptop"=>"37k", "Radio"=>"2k");
arsort($prices);

foreach($prices as $key => $value) {
echo "Key=" . $key . ", Value=" . $value;
echo "<br>";
}
?>

Output of the above program:

Key=Radio, Value=2k
Key=Laptop, Value=37k
Key=Computer, Value=35k

<?php
$array = array('Hello','world','This is Tutorial', 'Stars!');
echo implode(" ",$array);
?>

Output of the above program:

Hello world This is Tutorial Stars!

<?php
$array = "Hello world This is Tutorial Stars";
print_r (explode(" ",$array));
?>

Output of the above program:

Array (
[0] => Hello
[1] => world
[2] => This
[3] => is
[4] => Tutorial
[5] => Stars
)

<?php
$array = array("laptop"=>"ASUS PRO BOOK","radio"=>"Radio 2");
if (array_key_exists("laptop",$array)) {
echo "This key exists.";
} else {
echo "This key does not exist.";
}
?>

Output of the above program:

This key exists.

<?php
$array = [ 'laptop' => 'ASUS', 'television' => 'SONY', 'motherboard' => 'GIGABYTE', ];
$arrayKeys = array_keys($array);
print_r($arrayKeys);
?>

Output of the above program:

Array (
[0] => laptop
[1] => television
[2] => motherboard
)

<?php
$array = [ 'laptop' => 'ASUS', 'television' => 'SONY', 'motherboard' => 'GIGABYTE', ];
$arrayValuues = array_values($array);
print_r($arrayValuues);
?>

Output of the above program:

Array (
[0] => ASUS
[1] => SONY
[2] => GIGABYTE
)

<?php
$array = array("Computer","Laptop");
array_push($array,"Radio","Television");
print_r($array);
?>

Output of the above program:

Array (
[0] => Computer
[1] => Laptop
[2] => Radio
[3] => Television
)

<?php
$array = array("Computer","Laptop", "Radio");
array_pop($array);
print_r($array);
?>

Output of the above program:

Array (
[0] => Computer
[1] => Laptop
)

<?php
$array = array("p"=>"Computer","q"=>"Radio");
array_unshift($array,"Television");
print_r($array);
?>

Output of the above program:

Array ( [0] => Television [p] => Computer [q] => Radio )

<?php
$array1 = array("p"=>"Computer","q"=>"Laptop","r"=>"Radio","s"=>"Television");
$array2 = array("p"=>"Desktop","q"=>"Satteliate"); array_splice($array1,0,2,$array2); print_r($array1);
?>

Output of the above program:

Array ( [0] => Desktop [1] => Satteliate [r] => Radio [s] => Television )