PHP If internet explorer 6 7 8 or 9

Question

I want to do a conditional in PHP for the different versions of Internet Explorer along the lines of   if  browser    ie6     do this  elseif  browser    ie7      dothis   elseif     I have seen many variations on similar code  but looking for something super simple that is very easy to code to do some simple if and else and do different things   Thanks  EDIT  I need this to show some different messages to users so CSS conditionals etc are no good

User · Answer

You can as well look into PHP s get browser    http   php net manual en function get-browser php  Maybe you ll find it useful for more features

User · Answer

PHP has a function called get browser   that will return an object  or array if you so choose  with details about the users  browser and what it can do   A simple look through gave me this code    browser   get browser  null  true    if   browser  name       Firefox        if   browser  majorversion      4           echo  You re using Firefox version 4      This is not a surefire way  as it reads from HTTP USER AGENT  which can be spoofed  and will sometimes be analyzed wrong by php   but it s the easiest one that you can find as far as I know

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You can check the HTTP USER AGENT server variable  The user agent transfered by IE contains MSIE  if strpos   SERVER  HTTP USER AGENT     MSIE       false            For specific versions you can extend your condition  if strpos   SERVER  HTTP USER AGENT     MSIE 6        false            Also see this related question

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if  isset   SERVER  HTTP USER AGENT     amp  amp  preg match     i msie trident edge     SERVER  HTTP USER AGENT          eh  IE found

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if you have Internet Explorer 11 and it s running over a touch screen pc  you must use      preg match   Trident 7 0  Touch  rv 11 0      SERVER  HTTP USER AGENT    instead of      preg match   Trident 7 0  rv 11 0      SERVER  HTTP USER AGENT

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A version that will continue to work with both IE10 and IE11   preg match   MSIE             SERVER  HTTP USER AGENT     matches   if count  matches  lt 2     preg match   Trident   d 1 2   d 1 2   rv   0-9         SERVER  HTTP USER AGENT     matches      if  count  matches  gt 1       Then we re using IE    version    matches 1      switch true       case   version lt  8           IE 8 or under        break       case   version  9     version  10           IE9  amp  IE10        break       case   version  11           Version 11        break       default          You get the idea

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This is what I ended up using a variation of  which checks for IE8 and below   if  preg match   MSIE s  P lt v gt  d   i      SERVER  HTTP USER AGENT     B   amp  amp   B  v    lt   8           Browsers IE 8 and below   else          All other browsers

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but still useful - and works with IE11   here is another short way to get the common browsers returned for css class   function get browser          browser            ua   strtolower   SERVER  HTTP USER AGENT         if  preg match      msie   trident      rv      d       ua   matches    browser    ie ie   matches 1       elseif  preg match    safari chrome firefox      ua   matches    browser    matches 1        return  browser      So this function returns   safari  or  firefox  or  chrome   or  ie ie8    ie ie9    ie ie10    ie ie11    hope it helps

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Here s a little php function I wrote that uses the regex directly from MSFT s suggested javascript sniffing code from this article  http   msdn microsoft com en-us library ms537509 v vs 85  aspx        Returns the version of Internet Explorer or false    function isIE          isIE   preg match   MSIE   0-9  1     0-9  0        SERVER  HTTP USER AGENT    version       if  isIE           return  version 1             return  isIE

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Here is a great resource for detecting browsers in php  http   php net manual en function get-browser php  Here is one of the examples that seems the simplest    lt  php function get user browser          u agent     SERVER  HTTP USER AGENT         ub           if preg match   MSIE i   u agent                  ub    ie             elseif preg match   Firefox i   u agent                  ub    firefox             elseif preg match   Safari i   u agent                  ub    safari             elseif preg match   Chrome i   u agent                  ub    chrome             elseif preg match   Flock i   u agent                  ub    flock             elseif preg match   Opera i   u agent                  ub    opera              return  ub      gt    Then later in your code you could say something like   browser   get user browser    if  browser     ie          do stuff

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I do this   u     SERVER  HTTP USER AGENT      isIE7     bool preg match   msie 7  i    u     isIE8     bool preg match   msie 8  i    u     isIE9     bool preg match   msie 9  i    u     isIE10    bool preg match   msie 10  i    u     if   isIE9          do ie9 stuff

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Notice the case in  Trident    if  isset   SERVER  HTTP USER AGENT     amp  amp        strpos   SERVER  HTTP USER AGENT     MSIE       false     strpos   SERVER  HTTP USER AGENT     Trident       false                IE is here  -

User · Answer

You could use something like this for different messages or div css   lt  -- if IE 6  gt   lt style type  text css  gt  div ie6   display block     lt  style gt   lt   endif -- gt    lt  -- if IE 7  gt   lt style type  text css  gt  div ie7   display block     lt  style gt   lt   endif -- gt    lt  -- if IE 8  gt   lt style type  text css  gt  div ie8   display block     lt  style gt   lt   endif -- gt    lt  -- if IE 9  gt  message1  lt   endif -- gt    lt  -- if  IE 6  gt  message2  lt   endif -- gt    lt  -- if lt IE 8  gt  message3  lt   endif -- gt    OR use different div of css   lt  -- if lte IE 8  gt   lt style type  text css  gt  div lteie8   display block     lt  style gt   lt   endif -- gt    lt  -- if gt IE 6  gt   lt style type  text css  gt  div gtie6   display block     lt  style gt   lt   endif -- gt    lt  -- if gte IE 6  gt   lt style type  text css  gt  div gteie6   display block     lt  style gt   lt   endif -- gt

User · Answer

Checking for MSIE only is not enough to detect IE  You need also  Trident  which is only used in IE11  So here is my solution which worked an versions 8 to 11    agent strtoupper   SERVER  HTTP USER AGENT      isIE  strpos  agent  MSIE     false    strpos  agent  TRIDENT     false

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You can do this via parsing the user-agent header   http   php about com od learnphp p http user agent htm  Be wary that this is not very reliable and can be trivially spoofed

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HTTP USER AGENT        Contents of the User-Agent  header from the current request  if there is one  This is a string denoting the user agent being which is accessing the page  A typical example is  Mozilla 4 5  en   X11  U  Linux 2 2 9 i586   Among other things  you can use this value with get browser   to tailor your page s output to the capabilities of the user agent     So I assume you ll be able to get the browser name id from the   SERVER  HTTP USER AGENT   variable

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A tridend based approach would be better  Here is a quick function for checking IE 8    lt  php function is IE8       if strpos str replace            SERVER  HTTP USER AGENT     Trident 4 0      FALSE          return TRUE           return FALSE        gt

[php] PHP: If internet explorer 6, 7, 8 , or 9

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