W3speedster Exclude CSS Filter

Function: W3SpeedsterExcludeCssFilter
Description: If you want to dynamically exclude a CSS file from optimization, W3Speedster allows you to exclude it from optimization (like style.css).
Parameter: $exclude_css – 0(default) || 1
$css_obj – link tag in object format.
$css – Content of the CSS file you want to make changes in.
$html – content of the webpage.
Return: $exclude_css – exclude CSS from optimization.

function W3SpeedsterExcludeCssFilter($exclude_css,$css_obj,$css,$html){
	if(wp_is_mobile()){
		if(strpos($css,'style.css') !== false){
			$exclude_css = 1 ;
		}
	}
	return $exclude_css;
}