Merge pull request #31 in ZP/z-push from...

Merge pull request #31 in ZP/z-push from feature/ZP-669-compat-add-function-http_response_code to develop

* commit '4c356e5e':
  ZP-669 Add function http_response_code to compat. Released under the Affero GNU General Public License (AGPL) version 3.

src/lib/utils/compat.php

@@ -86,4 +86,66 @@ if (!function_exists("hex2bin")) {
         return pack("H*", $data);
     }
 }
+
+if (!function_exists('http_response_code')) {
+    /**
+     * http_response_code does not exists in PHP < 5.4
+     * http://php.net/manual/en/function.http-response-code.php
+     */
+    function http_response_code($code = NULL) {
+        if ($code !== NULL) {
+            switch ($code) {
+                case 100: $text = 'Continue'; break;
+                case 101: $text = 'Switching Protocols'; break;
+                case 200: $text = 'OK'; break;
+                case 201: $text = 'Created'; break;
+                case 202: $text = 'Accepted'; break;
+                case 203: $text = 'Non-Authoritative Information'; break;
+                case 204: $text = 'No Content'; break;
+                case 205: $text = 'Reset Content'; break;
+                case 206: $text = 'Partial Content'; break;
+                case 300: $text = 'Multiple Choices'; break;
+                case 301: $text = 'Moved Permanently'; break;
+                case 302: $text = 'Moved Temporarily'; break;
+                case 303: $text = 'See Other'; break;
+                case 304: $text = 'Not Modified'; break;
+                case 305: $text = 'Use Proxy'; break;
+                case 400: $text = 'Bad Request'; break;
+                case 401: $text = 'Unauthorized'; break;
+                case 402: $text = 'Payment Required'; break;
+                case 403: $text = 'Forbidden'; break;
+                case 404: $text = 'Not Found'; break;
+                case 405: $text = 'Method Not Allowed'; break;
+                case 406: $text = 'Not Acceptable'; break;
+                case 407: $text = 'Proxy Authentication Required'; break;
+                case 408: $text = 'Request Time-out'; break;
+                case 409: $text = 'Conflict'; break;
+                case 410: $text = 'Gone'; break;
+                case 411: $text = 'Length Required'; break;
+                case 412: $text = 'Precondition Failed'; break;
+                case 413: $text = 'Request Entity Too Large'; break;
+                case 414: $text = 'Request-URI Too Large'; break;
+                case 415: $text = 'Unsupported Media Type'; break;
+                case 500: $text = 'Internal Server Error'; break;
+                case 501: $text = 'Not Implemented'; break;
+                case 502: $text = 'Bad Gateway'; break;
+                case 503: $text = 'Service Unavailable'; break;
+                case 504: $text = 'Gateway Time-out'; break;
+                case 505: $text = 'HTTP Version not supported'; break;
+                default:
+                    exit('Unknown http status code "' . htmlentities($code) . '"');
+                    break;
+            }
+
+            $protocol = (isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0');
+            header($protocol . ' ' . $code . ' ' . $text);
+
+            $GLOBALS['http_response_code'] = $code;
+        } else {
+            $code = (isset($GLOBALS['http_response_code']) ? $GLOBALS['http_response_code'] : 200);
+        }
+
+        return $code;
+    }
+}
 ?>
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