mirror of
https://github.com/php/web-php.git
synced 2026-03-24 07:12:16 +01:00
232 lines
8.1 KiB
PHP
232 lines
8.1 KiB
PHP
<?php
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require_once 'prepend.inc';
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// A 'good looking' 404 error message page
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function make404()
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{
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global $REQUEST_URI;
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header('Status: 404 Not Found');
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header("Cache-Control: public, max-age=600");
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commonHeader('404 Not Found');
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echo "<h1>Not Found</h1>\n";
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echo "<p>The page <b>" . htmlspecialchars($REQUEST_URI) . "</b> could not be found.</p>\n";
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commonFooter();
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}
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// ============================================================================
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// For images, display a 404 automatically (no redirect)
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if (preg_match('/\.(pdf|gif|jpg|png)$/', $REQUEST_URI)) {
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make404();
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exit;
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}
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// ============================================================================
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// Check for a manual in the mirror's default language
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$lang = default_language();
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if (!@is_dir("$DOCUMENT_ROOT/manual/$lang")) {
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$lang = "en"; // fall back to English
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}
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// ============================================================================
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// BC: handle .php3 files that were renamed to .php
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if (preg_match("/(.*\.php)3$/", $REQUEST_URI, $array)) {
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if($SERVER_PORT!=80) {
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$url = "http://".$SERVER_NAME.":".$SERVER_PORT.$array[1];
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} else {
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$url = "http://".$SERVER_NAME.$array[1];
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}
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$urle = htmlspecialchars($url);
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header("Location: $url");
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print "<html><title>Redirect to $urle</title><body>";
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print "<a href=\"".$url."\">Please click here</a></body></html>";
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exit;
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}
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// ============================================================================
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// BC: handle moving english manual down into its own directory (also supports
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// default language manual accessibilty on mirror sites through /manual/filename)
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if (eregi("^(.*)/manual/((html/)?[^/]+)$", $REQUEST_URI, $array)) {
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if ($SERVER_PORT != 80) {
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$url = "http://".$SERVER_NAME.":".$SERVER_PORT."$array[1]/manual/$lang/".$array[2];
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} else {
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$url = "http://".$SERVER_NAME."$array[1]/manual/$lang/".$array[2];
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}
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$urle = htmlspecialchars($url);
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header("Location: $url");
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print "<html><title>Redirect to $url</title><body>";
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print "<a href=\"".$url."\">Please click here</a></body></html>";
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exit;
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}
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// ============================================================================
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// Prepare URI for further manipulation, dropping out leading slash
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$error_notes = $REDIRECT_REDIRECT_ERROR_NOTES
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? $REDIRECT_REDIRECT_ERROR_NOTES
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: $REDIRECT_ERROR_NOTES;
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$uri = substr(
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$error_notes,
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strpos($error_notes,$DOCUMENT_ROOT)+strlen($DOCUMENT_ROOT)+1
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);
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if ($uri[0] == "/") { $uri = substr($uri,1); }
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// ============================================================================
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// Printer friendly manual page handling. It's important that this is included,
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// and not redirected, as this way all relative URL's will retain their meaning
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// and point to pages relative to the print dir (which is nonexistent)
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// We need to override the 404 status in that case.
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if (preg_match("!^manual/(\\w+)/(print|printwn)/(.+\\.php)$!", $uri, $parts) &&
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@file_exists("../manual/$parts[1]/$parts[3]")) {
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header('HTTP/1.1 200 OK');
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$PRINT_PAGE = TRUE;
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if ($parts[2] == "printwn") { $PRINT_NOTES = TRUE; }
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include "../manual/$parts[1]/$parts[3]";
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exit;
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}
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// BC: for old HTML directory (.html extension was used in that)
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elseif (preg_match("!^manual/(\\w+)/html/(.+)\\.(html|php)$!", $uri, $parts) &&
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@file_exists("../manual/$parts[1]/$parts[2].php")) {
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header('HTTP/1.1 200 OK');
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$PRINT_PAGE = TRUE;
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include "../manual/$parts[1]/$parts[2].php";
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exit;
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}
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// The index file needs to be handled in a special way
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elseif (preg_match("!^manual/(\\w+)/(print|printwn|html)(/)?$!", $uri, $parts) &&
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@file_exists("../manual/$parts[1]/index.php")) {
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header('HTTP/1.1 200 OK');
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$PRINT_PAGE = TRUE;
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if ($parts[2] == "printwn") { $PRINT_NOTES = TRUE; }
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include "../manual/$parts[1]/index.php";
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exit;
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}
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// ============================================================================
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// Define shortcuts for PHP files, manual pages and external redirects
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$uri_aliases = array (
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# PHP page shortcuts
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"download" => "downloads",
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"documentation" => "docs",
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"mailinglists" => "mailing-lists",
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"mailinglist" => "mailing-lists",
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"changelog" => "ChangeLog-4",
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"gethelp" => "support",
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"help" => "support",
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"unsubscribe" => "unsub",
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"subscribe" => "mailing-lists",
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"logos" => "download-logos",
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"README.mirror" => "mirroring", // backward compatibility
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# manual shortcuts
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"ini" => "configuration",
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"install" => "installation",
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"intro" => "introduction",
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"whatis" => "introduction",
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"whatisphp" => "introduction",
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"what_is_php" => "introduction",
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"windows" => "install.windows",
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"win32" => "install.windows",
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"globals" => "language.variables.predefined",
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"register_globals" => "security.registerglobals",
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"registerglobals" => "security.registerglobals",
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"gd" => "image",
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"tut" => "tutorial",
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"tut.php" => "tutorial", // for backward compatibility with PHP page!
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"icap" => "mcal", // mcal is the successor of icap
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# external shortcut aliases ;)
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"dochowto" => "phpdochowto"
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);
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$external_redirects = array(
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"php4news" => "http://cvs.php.net/co.php/php4/NEWS?p=1"
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);
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// ============================================================================
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// "Rewrite" the URL, if it was a shortcut
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if (isset($uri_aliases[strtolower($uri)])) {
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$uri = $uri_aliases[strtolower($uri)];
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}
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// ============================================================================
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// Redirect if the entered URI was a PHP page name (except the books page,
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// which we display in the mirror's language or the explicitly specified
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// language [see below])
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if ($uri != 'books' && file_exists("$DOCUMENT_ROOT/$uri.php")) {
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header("Location: http://$SERVER_NAME/$uri.php");
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exit;
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}
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// ============================================================================
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// Execute external redirect if a rule exists for the URI
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if (isset($external_redirects[strtolower($uri)])) {
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header("Location: " . $external_redirects[strtolower($uri)]);
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exit;
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}
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// ============================================================================
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// Try to find the URI as a manual entry
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require "manual-lookup.inc";
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if (strchr($uri,'/')) {
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// Find language and function name part (eg. hu/ini)
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list($lang,$function) = explode('/',$uri,2);
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$function = strtolower($function);
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if ($lang != 'pt_BR') { $lang = strtolower($lang); }
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// Transform function name, so it can be a shortcut
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if (isset($uri_aliases[$function])) {
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$function = $uri_aliases[$function];
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}
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} else {
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$function = strtolower($uri);
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}
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// ============================================================================
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// Quick access to revcheck output, build logs, books for various languages and
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// the PHP Documentation Howto for backward compatibility
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if ($function == "rev") {
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header("Location: http://$SERVER_NAME/manual/$lang/revcheck.html.gz");
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exit;
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} elseif ($function == "blog") {
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header("Location: http://$SERVER_NAME/manual/$lang/build.log.gz");
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exit;
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} elseif ($function == "books") {
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header("Location: http://$SERVER_NAME/books.php?type_lang=PHP_$lang");
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exit;
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} elseif ($function == "phpdochowto") {
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header("Location: http://$SERVER_NAME/manual/howto/index.html");
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exit;
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}
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// ============================================================================
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// Try to find the page using this language as a manual page (lang is the language
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// from the URI, or the default language if it was not there in the URI
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$try = find_manual_page($lang, $function);
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if ($try) {
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header("Location: $try");
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exit;
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}
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// ============================================================================
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// If no match was found till this point, the last action is to start a
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// search with the URI the user typed in
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header('Location: http://'.$SERVER_NAME.'/search.php?show=manual&pattern='.urlencode(substr($REQUEST_URI,1)) );
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?>
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