What are common pitfalls when trying to embed PHP-generated images into existing web pages?

Common pitfalls when trying to embed PHP-generated images into existing web pages include not setting the correct content type header, not outputting the image data correctly, and not handling errors properly. To solve these issues, make sure to set the content type header to "image/png" or the appropriate image type, output the image data using the correct PHP functions, and handle any errors that may occur during the image generation process.

<?php
// Set the content type header
header('Content-Type: image/png');

// Generate the image
$image = imagecreate(200, 200);
$bg_color = imagecolorallocate($image, 255, 255, 255);
$text_color = imagecolorallocate($image, 0, 0, 0);
imagestring($image, 5, 50, 50, 'Hello World', $text_color);

// Output the image
imagepng($image);

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