What potential issues could arise when implementing a Like Button feature in a PHP gallery using jQuery and Ajax?

One potential issue that could arise when implementing a Like Button feature in a PHP gallery using jQuery and Ajax is the possibility of users being able to manipulate the likes count by sending multiple requests. To solve this issue, you can implement server-side validation to prevent multiple likes from the same user. 

// PHP code snippet to prevent multiple likes from the same user

session_start();

if(isset($_POST['image_id']) && isset($_SESSION['liked_images'])){
    $image_id = $_POST['image_id'];
    
    if(!in_array($image_id, $_SESSION['liked_images'])){
        // Process like request
        $_SESSION['liked_images'][] = $image_id;
        echo "Liked!";
    } else {
        echo "Already liked!";
    }
}

Keywords

jQuery Ajax Like Button PHP gallery implementation errors

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