Function of get_user_browser() function in PHP ECShop

This article mainly introduces the function of get_user_browser() function in PHP ECShop. Interested friends can refer to it. I hope it will be helpful to everyone.

I saw that there is such a function get_user_browser() in ecshop to get the name and version of the browser. Although the information obtained is only simple information, it is still very practical. The principle is to obtain browser information through $_SERVER['HTTP_USER_AGENT'], and then use regular rules to compare and obtain the browser information.

The following is the effect of each browser:

##The source code is as follows :

<?php
function get_user_browser()
{
  if (empty($_SERVER[&#39;HTTP_USER_AGENT&#39;]))
  {
    return &#39;&#39;;
  }
  $agent  = $_SERVER[&#39;HTTP_USER_AGENT&#39;];
  $browser  = &#39;&#39;;
  $browser_ver = &#39;&#39;;
  if (preg_match(&#39;/MSIE\s([^\s|;]+)/i&#39;, $agent, $regs))
  {
    $browser  = &#39;Internet Explorer&#39;;
    $browser_ver = $regs[1];
  }
  elseif (preg_match(&#39;/FireFox\/([^\s]+)/i&#39;, $agent, $regs))
  {
    $browser  = &#39;FireFox&#39;;
    $browser_ver = $regs[1];
  }
  elseif (preg_match(&#39;/Maxthon/i&#39;, $agent, $regs))
  {
    $browser  = &#39;(Internet Explorer &#39; .$browser_ver. &#39;) Maxthon&#39;;
    $browser_ver = &#39;&#39;;
  }
  elseif (preg_match(&#39;/Opera[\s|\/]([^\s]+)/i&#39;, $agent, $regs))
  {
    $browser  = &#39;Opera&#39;;
    $browser_ver = $regs[1];
  }
  elseif (preg_match(&#39;/OmniWeb\/(v*)([^\s|;]+)/i&#39;, $agent, $regs))
  {
    $browser  = &#39;OmniWeb&#39;;
    $browser_ver = $regs[2];
  }
  elseif (preg_match(&#39;/Netscape([\d]*)\/([^\s]+)/i&#39;, $agent, $regs))
  {
    $browser  = &#39;Netscape&#39;;
    $browser_ver = $regs[2];
  }
  elseif (preg_match(&#39;/safari\/([^\s]+)/i&#39;, $agent, $regs))
  {
    $browser  = &#39;Safari&#39;;
    $browser_ver = $regs[1];
  }
  elseif (preg_match(&#39;/NetCaptor\s([^\s|;]+)/i&#39;, $agent, $regs))
  {
    $browser  = &#39;(Internet Explorer &#39; .$browser_ver. &#39;) NetCaptor&#39;;
    $browser_ver = $regs[1];
  }
  elseif (preg_match(&#39;/Lynx\/([^\s]+)/i&#39;, $agent, $regs))
  {
    $browser  = &#39;Lynx&#39;;
    $browser_ver = $regs[1];
  }
  if (!empty($browser))
  {
    return addslashes($browser . &#39; &#39; . $browser_ver);
  }
  else
  {
    return &#39;Unknow browser&#39;;
  }
}
echo get_user_browser();
?>

Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study.

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