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Introduction to php

Introduction to PHP: A server-side scripting language, PHP empowers dynamic web development through embedded code and database interaction.

What Php Does?
  • Dynamic Content: PHP allows you to create web pages that aren’t static. You can display different content based on user input, time, or other factors. Imagine a website that shows personalized greetings or news articles tailored to the user.  
  • Database Interaction: PHP connects to databases like MySQL, allowing you to store and retrieve information. This is crucial for e-commerce sites, forums, and content management systems.  
  • User Interaction: PHP handles form submissions, user logins, and other interactions, making websites more engaging and user-friendly.  
  • Server-Side Logic: PHP executes complex logic on the server before the page is sent to the user’s browser. This includes calculations, data validation, and security checks.
Why use PHP?
  • Ease of Use: PHP’s syntax is relatively easy to learn, especially for beginners.  
  • Open Source: It’s free to use and distribute.  
  • Large Community: A vast community provides support, resources, and a wealth of knowledge.  
  • Versatility: PHP works with various operating systems and web servers.  
  • Security: Built-in security features and a focus on security best practices.  
Example:
<html>
    <head>
        <title>Hello</title>
    </head>
<body>
     <?php
          echo "<h1>Hello from PHP!</h1>";
     ?>
</body>
</html>
In this example:
  • This HTML code displays the title “Hello” in the browser tab and uses PHP to generate the text “Hello from PHP!” as a level 1 heading within the page content.
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