inc/3rdparty/libraries/MOBIClass/http_build_url.php

   1 <?php
   2 if(!is_callable("http_build_url")){
   3         define('HTTP_URL_REPLACE', 1);          // Replace every part of the first URL when there's one of the second URL
   4         define('HTTP_URL_JOIN_PATH', 2);        // Join relative paths
   5         define('HTTP_URL_JOIN_QUERY', 4);       // Join query strings
   6         define('HTTP_URL_STRIP_USER', 8);       // Strip any user authentication information
   7         define('HTTP_URL_STRIP_PASS', 16);      // Strip any password authentication information
   8         define('HTTP_URL_STRIP_AUTH', 32);      // Strip any authentication information
   9         define('HTTP_URL_STRIP_PORT', 64);      // Strip explicit port numbers
  10         define('HTTP_URL_STRIP_PATH', 128);     // Strip complete path
  11         define('HTTP_URL_STRIP_QUERY', 256);    // Strip query string
  12         define('HTTP_URL_STRIP_FRAGMENT', 512); // Strip any fragments (#identifier)
  13         define('HTTP_URL_STRIP_ALL', 1024);     // Strip anything but scheme and host
  14
  15         // Build an URL
  16         // The parts of the second URL will be merged into the first according to the flags argument.
  17         //
  18         // @param mixed     (Part(s) of) an URL in form of a string or associative array like parse_url() returns
  19         // @param mixed     Same as the first argument
  20         // @param int       A bitmask of binary or'ed HTTP_URL constants (Optional)HTTP_URL_REPLACE is the default
  21         // @param array     If set, it will be filled with the parts of the composed url like parse_url() would return
  22         function http_build_url($url, $parts = array (), $flags = HTTP_URL_REPLACE, &$new_url = false) {
  23           $keys = array (
  24                 'user',
  25                 'pass',
  26                 'port',
  27                 'path',
  28                 'query',
  29                 'fragment'
  30           );
  31
  32           // HTTP_URL_STRIP_ALL becomes all the HTTP_URL_STRIP_Xs
  33           if ($flags & HTTP_URL_STRIP_ALL) {
  34                 $flags |= HTTP_URL_STRIP_USER;
  35                 $flags |= HTTP_URL_STRIP_PASS;
  36                 $flags |= HTTP_URL_STRIP_PORT;
  37                 $flags |= HTTP_URL_STRIP_PATH;
  38                 $flags |= HTTP_URL_STRIP_QUERY;
  39                 $flags |= HTTP_URL_STRIP_FRAGMENT;
  40           }
  41           // HTTP_URL_STRIP_AUTH becomes HTTP_URL_STRIP_USER and HTTP_URL_STRIP_PASS
  42           else if ($flags & HTTP_URL_STRIP_AUTH) {
  43                 $flags |= HTTP_URL_STRIP_USER;
  44                 $flags |= HTTP_URL_STRIP_PASS;
  45           }
  46
  47           // Parse the original URL
  48           $parse_url = parse_url($url);
  49
  50           // Scheme and Host are always replaced
  51           if (isset($parts['scheme']))
  52                 $parse_url['scheme'] = $parts['scheme'];
  53
  54           if (isset($parts['host']))
  55                 $parse_url['host'] = $parts['host'];
  56
  57           // (If applicable) Replace the original URL with it's new parts
  58           if ($flags & HTTP_URL_REPLACE) {
  59                 foreach ($keys as $key) {
  60                   if (isset($parts[$key]))
  61                         $parse_url[$key] = $parts[$key];
  62                 }
  63           } else {
  64                 // Join the original URL path with the new path
  65                 if (isset($parts['path']) && ($flags & HTTP_URL_JOIN_PATH)) {
  66                   if (isset($parse_url['path']))
  67                         $parse_url['path'] = rtrim(str_replace(basename($parse_url['path']), '', $parse_url['path']), '/') . '/' . ltrim($parts['path'], '/');
  68                   else
  69                         $parse_url['path'] = $parts['path'];
  70                 }
  71
  72                 // Join the original query string with the new query string
  73                 if (isset($parts['query']) && ($flags & HTTP_URL_JOIN_QUERY)) {
  74                   if (isset($parse_url['query']))
  75                         $parse_url['query'] .= '&' . $parts['query'];
  76                   else
  77                         $parse_url['query'] = $parts['query'];
  78                 }
  79           }
  80
  81           // Strips all the applicable sections of the URL
  82           // Note: Scheme and Host are never stripped
  83           foreach ($keys as $key) {
  84                 if ($flags & (int)constant('HTTP_URL_STRIP_' . strtoupper($key)))
  85                   unset($parse_url[$key]);
  86           }
  87
  88           $new_url = $parse_url;
  89
  90           return ((isset($parse_url['scheme'])) ? $parse_url['scheme'] . '://' : '') . ((isset($parse_url['user'])) ? $parse_url['user'] . ((isset($parse_url['pass'])) ? ':' . $parse_url['pass'] : '') . '@' : '')
  91                 . ((isset($parse_url['host'])) ? $parse_url['host'] : '') . ((isset($parse_url['port'])) ? ':' . $parse_url['port'] : '') . ((isset($parse_url['path'])) ? $parse_url['path'] : '')
  92                 . ((isset($parse_url['query'])) ? '?' . $parse_url['query'] : '') . ((isset($parse_url['fragment'])) ? '#' . $parse_url['fragment'] : '');
  93         }
  94 }