How can PHP functions be executed only upon clicking a link in HTML?

To execute PHP functions only upon clicking a link in HTML, you can use AJAX to send a request to a PHP script when the link is clicked. This way, the PHP functions will be executed without refreshing the page. You can set up a click event listener on the link in JavaScript and use the fetch API to send an AJAX request to the PHP script. 

<?php
if(isset($_POST['data'])){
    // Perform PHP functions here
    echo "PHP functions executed successfully!";
    exit;
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>Execute PHP Functions on Link Click</title>
</head>
<body>
    <a href="#" id="execute-php">Click to Execute PHP Functions</a>
    
    <script>
        document.getElementById('execute-php').addEventListener('click', function() {
            fetch('your_php_script.php', {
                method: 'POST',
                body: new URLSearchParams({
                    data: 'execute'
                })
            })
            .then(response => response.text())
            .then(data => {
                console.log(data); // Output response from PHP script
            });
        });
    </script>
</body>
</html>

Keywords

PHP HTML link onclick event handler

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