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判斷訪客終端類型集錦

更新時間：2015年06月05日 10:35:13 投稿：hebedich

本文給大家講解的是使用php和javascript實現(xiàn)的判斷訪客終端類型的方法集錦，十分的簡單實用，有需要的小伙伴可以參考下。

當(dāng)用戶使用手機(jī)等移動終端訪問網(wǎng)站時，我們可以通過程序檢測用戶終端類型，如果是手機(jī)用戶，則引導(dǎo)用戶訪問適配手機(jī)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

我們使用PHP的$_SERVER['HTTP_USER_AGENT']來獲取手機(jī)用戶瀏覽器的用戶代理，然后匹配已有的各種手機(jī)瀏覽器代理庫，如果含有匹配的關(guān)鍵字，則判斷為手機(jī)（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; 
}

上述代碼中函數(shù)is_mobile()來判斷用戶終端類型，將收集到的當(dāng)今各種手機(jī)的HTTP_USER_AGENT歸結(jié)到數(shù)組$mobile_agents中，并進(jìn)行匹配。使用時只需調(diào)用函數(shù)is_mobile()。如以下代碼表示，當(dāng)匹配用戶為手機(jī)訪問時，頁面跳轉(zhuǎn)到網(wǎng)站手機(jī)版m.jb51.net。

 
if (is_mobile()) { 
  header('Location:http://m.jb51.net'); 
} else { 
  echo '請使用手機(jī)訪問.'; 
}

Javascript版

您也可以直接在前端頁面上加入一段Javascript腳本來判斷用戶的終端類型。Javascript也是通過獲取瀏覽器的user-agent信息，然后匹配已有的user-agent信息庫。

 
if ((navigator.userAgent.match(/(iPhone|iPod|Android|ios|iOS|iPad|Backerry| 
WebOS|Symbian|Windows Phone|Phone)/i))) { 
  location.replace("http://m.jb51.net") 
}else{ 
  document.write("請使用手機(jī)訪問."); 
}

以上代碼還不是很完善，有興趣的朋友歡迎補(bǔ)充。

當(dāng)然，我們也可以通過響應(yīng)式布局來匹配各種不同屏幕，這樣可以節(jié)約開發(fā)成本，但是當(dāng)客戶對移動網(wǎng)站的功能需求，對于獨立的移動站點最好是采用在網(wǎng)站入口處判斷用戶訪問終端類型，一般是我們在主站首頁就做判斷，如果是手機(jī)訪客則跳轉(zhuǎn)到手機(jī)版頁面，否則按正常PC方式訪問頁面。

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