Reducing Image File Size (Compression) using PHP GD

<?php

function compress_image($source_url, $destination_url, $quality) {
$info = getimagesize($source_url);

if ($info['mime'] == 'image/jpeg') $image = imagecreatefromjpeg($source_url);
elseif ($info['mime'] == 'image/gif') $image = imagecreatefromgif($source_url);
elseif ($info['mime'] == 'image/png') $image = imagecreatefrompng($source_url);

//save it
imagejpeg($image, $destination_url, $quality);

//return destination file url
return $destination_url;
}

$source_photo = 'uploads/Winter.jpg';// Set source image Path
$dest_photo = 'uploads/testing.jpg';// Set destination image Path

$d = compress_image($source_photo, $dest_photo, 50);

echo '
<div style="float:left;margin-right:10px">
<img src="'.$source_photo.'" alt="" />
<br />'.filesize($source_photo).' Bytes
</div>

<div style="float:left;">
<img src="'.$dest_photo.'" alt="" />
<br />'.filesize($dest_photo).' Bytes
</div>
';
?>