PHP和JS判斷手機仍是電腦訪問

當用戶使用手機等移動終端訪問網站時，咱們能夠經過程序檢測用戶終端類型，若是是手機用戶，則引導用戶訪問適配手機屏幕的移動站點。本文將介紹分別使用PHP和JAVASCRIPT代碼判斷用戶終端類型。

PHP版

咱們使用PHP的$_SERVER['HTTP_USER_AGENT']來獲取手機用戶瀏覽器的用戶代理，而後匹配已有的各類手機瀏覽器代理庫，若是含有匹配的關鍵字，則判斷爲手機（移動終端）用戶。

function is_mobile() { 
    $user_agent = $_SERVER['HTTP_USER_AGENT']; 
    $mobile_agents = array("240x320","acer","acoon","acs-","abacho","ahong","airness","alcatel","amoi", 
    "android","anywhereyougo.com","applewebkit/525","applewebkit/532","asus","audio", 
    "au-mic","avantogo","becker","benq","bilbo","bird","blackberry","blazer","bleu", 
    "cdm-","compal","coolpad","danger","dbtel","dopod","elaine","eric","etouch","fly ", 
    "fly_","fly-","go.web","goodaccess","gradiente","grundig","haier","hedy","hitachi", 
    "htc","huawei","hutchison","inno","ipad","ipaq","iphone","ipod","jbrowser","kddi", 
    "kgt","kwc","lenovo","lg ","lg2","lg3","lg4","lg5","lg7","lg8","lg9","lg-","lge-","lge9","longcos","maemo", 
    "mercator","meridian","micromax","midp","mini","mitsu","mmm","mmp","mobi","mot-", 
    "moto","nec-","netfront","newgen","nexian","nf-browser","nintendo","nitro","nokia", 
    "nook","novarra","obigo","palm","panasonic","pantech","philips","phone","pg-", 
    "playstation","pocket","pt-","qc-","qtek","rover","sagem","sama","samu","sanyo", 
    "samsung","sch-","scooter","sec-","sendo","sgh-","sharp","siemens","sie-","softbank", 
    "sony","spice","sprint","spv","symbian","tablet","talkabout","tcl-","teleca","telit", 
    "tianyu","tim-","toshiba","tsm","up.browser","utec","utstar","verykool","virgin", 
    "vk-","voda","voxtel","vx","wap","wellco","wig browser","wii","windows ce", 
    "wireless","xda","xde","zte"); 
    $is_mobile = false; 
    foreach ($mobile_agents as $device) { 
        if (stristr($user_agent, $device)) { 
            $is_mobile = true; 
            break; 
        } 
    } 
    return $is_mobile; 
} 

Javascript版

您也能夠直接在前端頁面上加入一段Javascript腳原本判斷用戶的終端類型。Javascript也是經過獲取瀏覽器的user-agent信息，而後匹配已有的user-agent信息庫。

if (navigator.userAgent.match(/(iPhone|iPod|Android|ios|iOS|iPad|Blackerry|WebOS|Symbian|Windows Phone|Phone|Nokia|UCWEB)/i)) {    alert('手機');}else{    alert('PC');}