http_response_code

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http_response_code — Get or Set the HTTP response code

说明

int http_response_code ([ int $response_code ] )

If you pass no parameters then http_response_code will get the current status code. If you pass a parameter it will set the response code.

参数

response_code

The optional response_code will set the response code.


<?php
http_response_code(404);
?>

返回值

The current response code. By default the return value is int(200).

范例

Example #1 Examples using headers_list()


<?php

// Get the current default response code
var_dump(http_response_code()); // int(200)

// Set our response code
http_response_code(404);

// Get our new response code
var_dump(http_response_code()); // int(404)
?>

以上例程会输出：

参见

header() - Send a raw HTTP header
headers_list() - Returns a list of response headers sent (or ready to send)

PHP手册 - N: Get or Set the HTTP response code

用户评论:

craig at craigfrancis dot co dot uk (26-Jan-2012 12:38)

If your version of PHP does not include this function: <?php if (!function_exists('http_response_code')) { 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; } } ?> In this example I am using $GLOBALS, but you can use whatever storage mechanism you like... I don't think there is a way to return the current status code: https://bugs.php.net/bug.php?id=52555 For reference the error codes I got from PHP's source code: http://lxr.php.net/opengrok/xref/PHP_5_4/sapi/cgi/cgi_main.c#354 And how the current http header is sent, with the variables it uses: http://lxr.php.net/opengrok/xref/PHP_5_4/main/SAPI.c#856