Please any one give the idea of crop uploaded image using php

Please help
Thanks in advance
Rajeesh

cropImage(225, 165, '/path/to/source/image.jpg', 'jpg', '/path/to/dest/image.jpg');
function cropImage($nw, $nh, $source, $stype, $dest) {
	$size = getimagesize($source);
	$w = $size[0];
	$h = $size[1];
	switch($stype) {
		case 'gif':
		$simg = imagecreatefromgif($source);
		break;
		case 'jpg':
		$simg = imagecreatefromjpeg($source);
		break;
		case 'png':
		$simg = imagecreatefrompng($source);
		break;
	}
	$dimg = imagecreatetruecolor($nw, $nh);
	$wm = $w/$nw;
	$hm = $h/$nh;
	$h_height = $nh/2;
	$w_height = $nw/2;
	if($w> $h) {
		$adjusted_width = $w / $hm;
		$half_width = $adjusted_width / 2;
		$int_width = $half_width - $w_height;
		imagecopyresampled($dimg,$simg,-$int_width,0,0,0,$adjusted_width,$nh,$w,$h);
	} elseif(($w <$h) || ($w == $h)) {
		$adjusted_height = $h / $wm;
		$half_height = $adjusted_height / 2;
		$int_height = $half_height - $h_height;
		imagecopyresampled($dimg,$simg,0,-$int_height,0,0,$nw,$adjusted_height,$w,$h);
	} else {
		imagecopyresampled($dimg,$simg,0,0,0,0,$nw,$nh,$w,$h);
	}
	imagejpeg($dimg,$dest,100);
}

hope it helps

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