What are common errors when trying to display a self-generated image in PHP without server-side caching?

Common errors when trying to display a self-generated image in PHP without server-side caching include slow loading times and excessive server resource usage. To solve this issue, you can save the generated image to a file on the server and serve it directly from the file system when requested. 

<?php
// Generate the image
$image = imagecreate(200, 200);
$bgColor = imagecolorallocate($image, 255, 255, 255);
$textColor = imagecolorallocate($image, 0, 0, 0);
imagestring($image, 4, 50, 50, 'Hello World', $textColor);

// Save the image to a file
$imagePath = 'generated_image.png';
imagepng($image, $imagePath);
imagedestroy($image);

// Display the image
header('Content-Type: image/png');
readfile($imagePath);
?>

Keywords

PHP image generation server-side caching error handling GD library

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