What are the advantages of using thumbnails for images in a PHP application, especially when dealing with a high volume of images?

When dealing with a high volume of images in a PHP application, using thumbnails can greatly improve performance by reducing the size of the images displayed on the page. Thumbnails are smaller versions of the original images that are quicker to load and display, making the overall user experience smoother and faster. Additionally, thumbnails can help conserve server resources by reducing the amount of data that needs to be processed and transmitted. 

// Create a thumbnail from an image using PHP GD library
function createThumbnail($source, $dest, $width, $height) {
    $sourceImage = imagecreatefromjpeg($source);
    $thumbnail = imagecreatetruecolor($width, $height);
    imagecopyresampled($thumbnail, $sourceImage, 0, 0, 0, 0, $width, $height, imagesx($sourceImage), imagesy($sourceImage));
    imagejpeg($thumbnail, $dest, 80);
    imagedestroy($sourceImage);
    imagedestroy($thumbnail);
}

// Usage example
$sourceImage = 'original.jpg';
$thumbnail = 'thumbnail.jpg';
createThumbnail($sourceImage, $thumbnail, 100, 100);

Keywords

thumbnails images PHP application high volume advantages

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