List of HTTP status codes in PHP

statusCode.php

<?php

/**
 * Content from http://en.wikipedia.org/wiki/List_of_HTTP_status_codes
 **/
return array(
    100 => 'Continue',
    101 => 'Switching Protocols',
    102 => 'Processing', // WebDAV; RFC 2518
    200 => 'OK',
    201 => 'Created',
    202 => 'Accepted',
    203 => 'Non-Authoritative Information', // since HTTP/1.1
    204 => 'No Content',
    205 => 'Reset Content',
    206 => 'Partial Content',
    207 => 'Multi-Status', // WebDAV; RFC 4918
    208 => 'Already Reported', // WebDAV; RFC 5842
    226 => 'IM Used', // RFC 3229
    300 => 'Multiple Choices',
    301 => 'Moved Permanently',
    302 => 'Found',
    303 => 'See Other', // since HTTP/1.1
    304 => 'Not Modified',
    305 => 'Use Proxy', // since HTTP/1.1
    306 => 'Switch Proxy',
    307 => 'Temporary Redirect', // since HTTP/1.1
    308 => 'Permanent Redirect', // approved as experimental RFC
    400 => 'Bad Request',
    401 => 'Unauthorized',
    402 => 'Payment Required',
    403 => 'Forbidden',
    404 => 'Not Found',
    405 => 'Method Not Allowed',
    406 => 'Not Acceptable',
    407 => 'Proxy Authentication Required',
    408 => 'Request Timeout',
    409 => 'Conflict',
    410 => 'Gone',
    411 => 'Length Required',
    412 => 'Precondition Failed',
    413 => 'Request Entity Too Large',
    414 => 'Request-URI Too Long',
    415 => 'Unsupported Media Type',
    416 => 'Requested Range Not Satisfiable',
    417 => 'Expectation Failed',
    418 => 'I\'m a teapot', // RFC 2324
    419 => 'Authentication Timeout', // not in RFC 2616
    420 => 'Enhance Your Calm', // Twitter
    420 => 'Method Failure', // Spring Framework
    422 => 'Unprocessable Entity', // WebDAV; RFC 4918
    423 => 'Locked', // WebDAV; RFC 4918
    424 => 'Failed Dependency', // WebDAV; RFC 4918
    424 => 'Method Failure', // WebDAV)
    425 => 'Unordered Collection', // Internet draft
    426 => 'Upgrade Required', // RFC 2817
    428 => 'Precondition Required', // RFC 6585
    429 => 'Too Many Requests', // RFC 6585
    431 => 'Request Header Fields Too Large', // RFC 6585
    444 => 'No Response', // Nginx
    449 => 'Retry With', // Microsoft
    450 => 'Blocked by Windows Parental Controls', // Microsoft
    451 => 'Redirect', // Microsoft
    451 => 'Unavailable For Legal Reasons', // Internet draft
    494 => 'Request Header Too Large', // Nginx
    495 => 'Cert Error', // Nginx
    496 => 'No Cert', // Nginx
    497 => 'HTTP to HTTPS', // Nginx
    499 => 'Client Closed Request', // Nginx
    500 => 'Internal Server Error',
    501 => 'Not Implemented',
    502 => 'Bad Gateway',
    503 => 'Service Unavailable',
    504 => 'Gateway Timeout',
    505 => 'HTTP Version Not Supported',
    506 => 'Variant Also Negotiates', // RFC 2295
    507 => 'Insufficient Storage', // WebDAV; RFC 4918
    508 => 'Loop Detected', // WebDAV; RFC 5842
    509 => 'Bandwidth Limit Exceeded', // Apache bw/limited extension
    510 => 'Not Extended', // RFC 2774
    511 => 'Network Authentication Required', // RFC 6585
    598 => 'Network read timeout error', // Unknown
    599 => 'Network connect timeout error', // Unknown
);