What are the drawbacks of using a PHP script like thumbs.php for image resizing in a gallery?

One drawback of using a PHP script like thumbs.php for image resizing in a gallery is that it can be resource-intensive and slow down the loading time of the webpage, especially if there are a large number of images to resize. To solve this issue, you can implement caching to store the resized images and serve them directly without the need for resizing each time the page is loaded. 

// Check if the resized image already exists in the cache
$cacheFile = 'cache/' . $_GET['image'];
if (file_exists($cacheFile)) {
    // Serve the cached image
    header('Content-Type: image/jpeg');
    readfile($cacheFile);
    exit;
} else {
    // Resize the image and save it to the cache
    $sourceFile = 'images/' . $_GET['image'];
    // Add your image resizing code here
    // Save the resized image to the cache
    imagejpeg($resizedImage, $cacheFile);
    // Serve the resized image
    header('Content-Type: image/jpeg');
    readfile($cacheFile);
    exit;
}

Keywords

PHP image resizing thumbs.php drawbacks gallery

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