php判斷客戶端瀏覽器類型

/**
 * 判斷瀏覽器名稱和版本
 */
function get_user_browser()
{
    if (empty($_SERVER['HTTP_USER_AGENT']))
    {
        return '';
    }
  
    $agent       = $_SERVER['HTTP_USER_AGENT'];
    $browser     = '';
    $browser_ver = '';
  
    if (preg_match('/MSIE\s([^\s|;]+)/i', $agent, $regs))
    {
        $browser     = 'Internet Explorer';
        $browser_ver = $regs[1];
    }
    elseif (preg_match('/FireFox\/([^\s]+)/i', $agent, $regs))
    {
        $browser     = 'FireFox';
        $browser_ver = $regs[1];
    }
    elseif (preg_match('/Maxthon/i', $agent, $regs))
    {
        $browser     = '(Internet Explorer ' .$browser_ver. ') Maxthon';
        $browser_ver = '';
    }
    elseif (preg_match('/Opera[\s|\/]([^\s]+)/i', $agent, $regs))
    {
        $browser     = 'Opera';
        $browser_ver = $regs[1];
    }
    elseif (preg_match('/OmniWeb\/(v*)([^\s|;]+)/i', $agent, $regs))
    {
        $browser     = 'OmniWeb';
        $browser_ver = $regs[2];
    }
    elseif (preg_match('/Netscape([\d]*)\/([^\s]+)/i', $agent, $regs))
    {
        $browser     = 'Netscape';
        $browser_ver = $regs[2];
    }
    elseif (preg_match('/safari\/([^\s]+)/i', $agent, $regs))
    {
        $browser     = 'Safari';
        $browser_ver = $regs[1];
    }
    elseif (preg_match('/NetCaptor\s([^\s|;]+)/i', $agent, $regs))
    {
        $browser     = '(Internet Explorer ' .$browser_ver. ') NetCaptor';
        $browser_ver = $regs[1];
    }
    elseif (preg_match('/Lynx\/([^\s]+)/i', $agent, $regs))
    {
        $browser     = 'Lynx';
        $browser_ver = $regs[1];
    }
  
    if (!empty($browser))
    {
       return addslashes($browser . ' ' . $browser_ver);
    }
    else
    {
        return 'Unknow browser';
    }
}

function my_get_browser(){
 if(empty($_SERVER['HTTP_USER_AGENT'])){
  return 'robot！';
 }
 if( (false == strpos($_SERVER['HTTP_USER_AGENT'],'MSIE')) && (strpos($_SERVER['HTTP_USER_AGENT'], 'Trident')!==FALSE) ){
  return 'Internet Explorer 11.0';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'MSIE 10.0')){
  return 'Internet Explorer 10.0';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'MSIE 9.0')){
  return 'Internet Explorer 9.0';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'MSIE 8.0')){
  return 'Internet Explorer 8.0';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'MSIE 7.0')){
  return 'Internet Explorer 7.0';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'MSIE 6.0')){
  return 'Internet Explorer 6.0';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'Edge')){
  return 'Edge';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'Firefox')){
  return 'Firefox';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'Chrome')){
  return 'Chrome';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'Safari')){
  return 'Safari';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'Opera')){
  return 'Opera';
 }
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'360SE')){
  return '360SE';
 }
  //微信瀏覽器
 if(false!==strpos($_SERVER['HTTP_USER_AGENT'],'MicroMessage')){
  return 'MicroMessage';
 }
}