How can PHP code be optimized for creating and displaying images on a website?

To optimize PHP code for creating and displaying images on a website, you can use image caching to reduce server load and improve loading times. This involves saving generated images to a cache folder and checking if the image already exists before generating it again. 

// Check if the image exists in the cache folder
$cache_file = 'cache/' . md5($image_source) . '.jpg';

if (file_exists($cache_file)) {
    // Display the cached image
    echo '<img src="' . $cache_file . '" alt="Cached Image">';
} else {
    // Generate the image and save it to the cache folder
    $image = imagecreatefromjpeg($image_source);
    imagejpeg($image, $cache_file);
    
    // Display the generated image
    echo '<img src="' . $cache_file . '" alt="Generated Image">';
}

Keywords

Image processing GD library imagecreatefromjpeg imagejpeg image optimization

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