How can the user modify the PHP code to only count a click when a specific link is clicked?

To only count a click when a specific link is clicked, you can modify the PHP code to check if the clicked link matches the specific link you want to track. You can do this by adding a conditional statement that compares the clicked link with the specific link. If they match, then increment the click count. 

<?php
// Check if a specific link is clicked
if(isset($_GET['link']) && $_GET['link'] == 'specific_link') {
    // Increment click count
    $count = file_get_contents('click_count.txt');
    $count++;
    file_put_contents('click_count.txt', $count);
    // Redirect to the specific link
    header('Location: specific_link_url');
    exit;
}
?>

Keywords

PHP click tracking link tracking conditional statement event listener

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