Created
May 11, 2012 18:42
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PHP: responsive image
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| <?php | |
| $_responsive = new Responsive; | |
| echo $_responsive->get_cookie_code(); | |
| ?> | |
| <?=$_COOKIE['resolution'];?> | |
| <?php | |
| class Responsive | |
| { | |
| /** | |
| * returns the code for setting resolution cookie | |
| * @param integer $default_resolution fallback resolution if cookie not setable | |
| * @return mixed code for setting cookie or null | |
| */ | |
| public function get_cookie_code($default_resolution = 1280) | |
| { | |
| if (!$_COOKIE['resolution']) | |
| { | |
| $_COOKIE['resolution'] = $default_resolution; | |
| // workaround needed for android bug | |
| $android = strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'android') !== false ? true : false; | |
| return '<meta name="viewport" content="initial-scale=1.0,maximum-scale=1.0"><script>if(navigator.cookieEnabled==true){'.($android ? 'window.setTimeout(function() {' : '').'document.cookie="resolution="+Math.max(screen.width,screen.height)+"; path=/";window.location="'.$_SERVER['REQUEST_URI'].'";'.($android ? '}, 1);' : '').'}</script>'; | |
| } | |
| return null; | |
| } | |
| } | |
| ?> |
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