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HTTP 状态码常量表
HTTP_STATUS_CODES 常量：100~599 完整映射，含大量非标准码
本页内容
- 2xx 成功
- 3xx 重定向
- 4xx 客户端错误
- 5xx 服务端错误
- 注意事项
2xx 成功
| 码 | 文案 |
|---|---|
| 200 | OK |
| 201 | Created |
| 202 | Accepted |
| 203 | Non-Authoritative Information |
| 204 | No Content |
| 205 | Reset Content |
| 206 | Partial Content |
| 207 | Multi-Status |
3xx 重定向
| 码 | 文案 |
|---|---|
| 300 | Multiple Choices |
| 301 | Moved Permanently |
| 302 | Found |
| 303 | See Other |
| 304 | Not Modified |
| 305 | Use Proxy |
| 306 | (Unused) |
| 307 | Temporary Redirect |
| 308 | Permanent Redirect |
4xx 客户端错误
| 码 | 文案 |
|---|---|
| 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 |
| 419 | Authentication Timeout |
| 420 | Enhance Your Calm |
| 422 | Unprocessable Entity |
| 423 | Locked |
| 424 | Failed Dependency |
| 425 | Unordered Collection |
| 426 | Upgrade Required |
| 428 | Precondition Required |
| 429 | Too Many Requests |
| 431 | Request Header Fields Too Large |
| 444 | No Response |
| 449 | Retry With |
| 450 | Blocked by Windows Parental Controls |
| 451 | Unavailable For Legal Reasons |
| 494 | Request Header Too Large |
| 495 | Cert Error |
| 496 | No Cert |
| 497 | HTTP to HTTPS |
| 499 | Client Closed Request |
5xx 服务端错误
| 码 | 文案 |
|---|---|
| 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 |
| 507 | Insufficient Storage |
| 508 | Loop Detected |
| 509 | Bandwidth Limit Exceeded |
| 510 | Not Extended |
| 511 | Network Authentication Required |
| 598 | Network read timeout error |
| 599 | Network connect timeout error |
注意事项
常量中 424 出现两次（Failed Dependency 与 Method Failure），PHP 常量数组后者覆盖前者，实际生效为 Method Failure。
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