What are the recommended quality settings for creating JPEG thumbnails using imagejpeg function in PHP?

When creating JPEG thumbnails using the imagejpeg function in PHP, it is recommended to use a quality setting between 60 to 80 for a good balance between image quality and file size. Using a lower quality setting will result in smaller file sizes but may reduce image clarity, while using a higher quality setting will result in larger file sizes but better image quality. 

// Create a JPEG thumbnail with recommended quality settings
$source_image = 'original.jpg';
$thumbnail_image = 'thumbnail.jpg';

list($width, $height) = getimagesize($source_image);
$thumb_width = 100;
$thumb_height = 100;

$source = imagecreatefromjpeg($source_image);
$thumb = imagecreatetruecolor($thumb_width, $thumb_height);

imagecopyresized($thumb, $source, 0, 0, 0, 0, $thumb_width, $thumb_height, $width, $height);

imagejpeg($thumb, $thumbnail_image, 75); // Recommended quality setting between 60 to 80

imagedestroy($source);
imagedestroy($thumb);

Keywords

imagejpeg PHP thumbnails quality settings recommended

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