PHP 判断当前访问设备是电脑还是手机

function is_mobile(){    $regex_match="/(nokia|iphone|android|motorola|^mot\-|softbank|foma|docomo|kddi|up\.browr|up\.link|";    $regex_match.="htc|dopod|blazer|netfront|helio|hosin|huawei|novarra|C前台岗位职责oolPad|webos|techfaith|palmsource|";    非静电力$regex_match.="blackberry|alcatel|amoi|ktouch|nexian|samsung|^sam\-|s[cg]h一件有趣的事作文300字|^lge|ericsson|philips|sagem|wellcom|bunjalloo|maui|";    $regex_match.="symbia鲁东大学专科分数线n|smartphone|midp|wap|phone|windows ce|iemobile|^spice|^bird|^zte\-|longcos|pantech|gionee|^sie\-|portalmmm|";    $regex_match.="jig\s browr|hiptop|^ucweb|^benq|haier|^lct|opera\s*mobi|opera\*mini|320x320|240x320|176x220";    $regex_match.=")/i";    $state=preg_match($regex_match, strtolower($_SERVER['HTTP_USER_AGENT']寒兰));    //pc返回0,手机返回1    return $state;}

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