What are the differences between using PHP and JavaScript for creating dynamic text effects on images?

When creating dynamic text effects on images, PHP is typically used for server-side processing while JavaScript is used for client-side interactions. PHP can be used to generate dynamic text overlays on images before they are displayed to the user, while JavaScript can be used to manipulate the text effects in real-time on the client side. PHP code snippet:

<?php
// Create a new image resource
$image = imagecreatefromjpeg('image.jpg');

// Set the font size and color
$font_size = 20;
$font_color = imagecolorallocate($image, 255, 255, 255);

// Add text to the image
$text = "Dynamic Text";
imagettftext($image, $font_size, 0, 10, 50, $font_color, 'arial.ttf', $text);

// Output the image
header('Content-type: image/jpeg');
imagejpeg($image);

// Free up memory
imagedestroy($image);
?>