PHP $_server[' orig_script_name ']

Because it's a new feature of a project, this new feature is made with the company's newly developed framework.

This frame is very NB Ah, NB to where that. There are several main points:

1, the framework has no documentation;

2, the framework of the source code is not annotated;

3, in addition to the main line of developers of our department few people familiar with the use;

If you want to use this framework to do things, there is only one way: Look at the source code, first understand the framework of the implementation of the principle, and then use this bird thing to do things.

When I see a class that handles the request, the following code looks like this:

              
                   1 static function Get_base_url () {2 $filename = (isset     ($_server [' script_filename ']))         ?     basename ($_server [' Script_filename ']): ';    3 if (isset ($_server [' orig_script_name ')) && basename          ($_server [' orig_script_name ']) = = = $filename) {4 $base _url =      $_server [' Orig_script_name '];    5} elseif (Isset ($_server [' script_name ']) && basename         ($_server [' script_name ']) = = = $filename) {6 $base _url =     $_server [' Script_name ']; 7} elseif (Isset ($_server [' php_self ']) && BASEname ($_server [' php_self ']) = = = $filename) {8 $base _url     = $_server [' php_self '];     9} else {$path = Isset ($_server [' php_self '])         ?    $_server [' php_self ']: ';         One $file = Isset ($_server [' script_filename '])?    $_server [' Script_filename ']: ';    $segs = explode ('/', trim ($file, '/')    ));    $segs = Array_reverse ($segs);    $index = 0;    $last = count ($segs);    $base _url = "; + do {$seg = $segs [   $index];         $base _url = '/'.         $seg.    $base _url;    + + + $index; ($last > $index) && (False!== ($p    OS = Strpos ($path, $base _url))) && (0! = $pos    ));    $request _uri = self:: Get_request_uri (); if (0 = = Strpos ($request _uri, $base _url)) {$ re    Turn self:: dirname ($base _url); if (0 = = Strpos ($request _uri, dirname ($base _    URL)) {return self:: dirname ($base _url);    $truncatedrequest _uri = $request _uri;    if ($pos = Strpos ($request _uri, '?    !== false) {$truncatedrequest _uri = substr ($request _uri    , 0, $pos);    The PNs $basename = basename ($base _url);         if (Empty ($basename) | |    !    Strpos ($truncatedrequest _uri, $basename)) {; (Strlen ($request _uri) >= strlen ($base _ URL) && (false!== ($pos = Strpos ($request _ur         I, $base _url))) && ($pos!== 0)) {$base _url = substr ($request _uri, 0, $pos + StrlEn ($base _url));    RTrim Return (self:: dirname ($base _url), '/'    );               47}

There are so many things to learn, and for the first time today I see $_server[' orig_script_name ' this variable. What do you do? It's not clear.

Previously I just knew $_server[' script_name '] this variable.

I have always been the inquisitive, what is not clear, if not to get out, uncomfortable ah.

Use degree Niang search under, see this passage:

To know whether PHP is currently running through CGI or inside Apache, you can check the environment variable orig_script_name.

If PHP runs through CGI, the value of this variable is/php/php.exe.

If Apache runs the php script as a module, the value of the variable should be/phptest.php

It just dawned on me. It turns out that's the reason.

It seems that I want to learn PHP well, learn the essence of a lot of Kung fu ah.

This is the only record.

