PHP判断是手机端还是PC端 PHP判断是否是微信浏览器

functionisMobile() {

  // 如果有HTTP_X_WAP_PROFILE则一定是移动设备

  if(isset($_SERVER['HTTP_X_WAP_PROFILE'])) {

    returntrue;

  }

  // 如果via信息含有wap则一定是移动设备,部分服务商会屏蔽该信息

  if(isset($_SERVER['HTTP_VIA'])) {

    // 找不到为flase,否则为true

    returnstristr($_SERVER['HTTP_VIA'],"wap") ? true : false;

  }

  // 脑残法，判断手机发送的客户端标志,兼容性有待提高。其中'MicroMessenger'是电脑微信

  if(isset($_SERVER['HTTP_USER_AGENT'])) {

    $clientkeywords=array('nokia','sony','ericsson','mot','samsung','htc','sgh','lg','sharp','sie-','philips','panasonic','alcatel','lenovo','iphone','ipod','blackberry','meizu','android','netfront','symbian','ucweb','windowsce','palm','operamini','operamobi','openwave','nexusone','cldc','midp','wap','mobile','MicroMessenger');

    // 从HTTP_USER_AGENT中查找手机浏览器的关键字

    if(preg_match("/(". implode('|',$clientkeywords) .")/i",strtolower($_SERVER['HTTP_USER_AGENT']))) {

      returntrue;

    }

  }

  // 协议法，因为有可能不准确，放到最后判断

  if(isset ($_SERVER['HTTP_ACCEPT'])) {

    // 如果只支持wml并且不支持html那一定是移动设备

    // 如果支持wml和html但是wml在html之前则是移动设备

    if((strpos($_SERVER['HTTP_ACCEPT'],'vnd.wap.wml')  !== false) && (strpos($_SERVER['HTTP_ACCEPT'],'text/html') ===  false || (strpos($_SERVER['HTTP_ACCEPT'],'vnd.wap.wml')

      returntrue;

    }

  }

  returnfalse;

}

functionisWeixin() {

  if(strpos($_SERVER['HTTP_USER_AGENT'],'MicroMessenger') !== false) {

    returntrue;

  }else{

    returnfalse;

  }

}