What are the limitations of PHP in terms of client-side interactions?

PHP is a server-side language, meaning it runs on the server and generates HTML that is sent to the client's browser. As a result, PHP does not have direct control over client-side interactions such as handling user input or responding to events like button clicks. To overcome this limitation, you can use a combination of PHP and JavaScript to create interactive web applications. 

//index.php
<html>
<head>
  <script>
    function handleClick() {
      // Handle button click event using JavaScript
      alert('Button clicked!');
    }
  </script>
</head>
<body>
  <button onclick="handleClick()">Click me</button>
</body>
</html>

Keywords

JavaScript AJAX front-end frameworks cross-origin resource sharing (CORS) client-side validation

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