PHP judges that access users are using a PC browser and a mobile browser

function Is_mobile () {    //To determine if the mobile Access    $regex _match= "/(nokia|iphone|android|motorola|^mot\-|softbank|foma| Docomo|kddi|up\.browser|up\.link| ";    $regex _match.= "htc|dopod|blazer|netfront|helio|hosin|huawei|novarra| Coolpad|webos|techfaith|palmsource| ";    $regex _match.= "blackberry|alcatel|amoi|ktouch|nexian|samsung|^sam\-|s[cg]h|^lge|ericsson|philips|sagem|wellcom |bunjalloo|maui| ";    $regex _match.= "Symbian|smartphone|midp|wap|phone|windows Ce|iemobile|^spice|^bird|^zte\-|longcos|pantech|gionee |^sie\-|portalmmm| ";    $regex _match.= "jig\s browser|hiptop|^ucweb|^benq|haier|^lct|opera\s*mobi|opera\*mini|320x320|240x320|176x220";    $regex _match.= ")/I";    return isset ($_server[' http_x_wap_profile ')) or isset ($_server[' http_profile ']) or Preg_match ($regex _match, Strtolower ($_server[' http_user_agent '));}

                                                
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