PROTIP: KCFinder Thumbnails Vs. phpThumb (relic)

<?php
/*
pixtulate parameters: http://pixtulate.com/docs/crop.htm#cookbook
parameter	description								type				mandatory					default
w, width	desired width							int, %, ‘max’		not if height is given	 
h, height	desired height							int, %, ‘max’		not if width is given	 
tlc			top left corner of crop area			int, ‘min’, ‘max’	not if brc is given	 
brc			bottom right corner of crop area		int, ‘min’, ‘max’	not if tlc is given	 
fp			focal point where to center crop area	int					no	 
dpr			device pixel resolution					decimal				no							1

Typical screen widths: https://developer.android.com/guide/practices/screens_support.html
320dp: a typical phone screen (240x320 ldpi, 320x480 mdpi, 480x800 hdpi, etc).
480dp: a tweener tablet like the Streak (480x800 mdpi).
600dp: a 7” tablet (600x1024 mdpi).
720dp: a 10” tablet (720x1280 mdpi, 800x1280 mdpi, etc).
*/	
$output = '';

$ua = strtolower($_SERVER['HTTP_USER_AGENT']);
//mobile android
if(stripos($ua,'android') !== false && stripos($ua,'mobile') !== false) {
	$detect = "400";
}
//mobile iphone
elseif(stripos($ua,'iphone') !== false) {
	$detect = "400";
}
//tablet android
elseif(stripos($ua,'android') !== false && stripos($ua,'mobile') == false) {
	$detect = "600";
}
//tablet ipad
elseif(stripos($ua,'ipad') !== false) {
	$detect = "600";
}
//laptop
else {
	$detect = "800";
}

//snippet parameters
$api  	= isset($api) 	? $api 	: 'http://demo.api.pixtulate.com/';
$pic  	= isset($pic) 	? $pic 	: 'demo/large-4.jpg';
$alt  	= isset($alt) 	? $alt 	: '';
$w  	= isset($w) 	? $w 	: $detect;
$h  	= isset($h)		? $h 	: '';
$tlc  	= isset($tlc) 	? $tlc 	: '';
$brc  	= isset($brc) 	? $brc 	: '';
$fp  	= isset($fp) 	? $fp 	: '';
$dpr  	= isset($dpr) 	? $dpr 	: '1';

$data = array(
	'tlc'	=>	$tlc,
    'brc'	=>	$brc,
    'w'		=>	$w,
	'h'		=>	$h,
	'fp'	=>	$fp,
	'dpr'	=>	$dpr
);
$src = $api . $pic . "?" . http_build_query($data);
$output = '<img src="'. $src .'" alt="'. $alt .'">'; 
return $output;
?>