What are the common error codes in PHP?

Common php error codes are:

200: The server responded normally.

304: The resource has not been modified in any way since the last request (this is usually used for the browser's caching mechanism, especially when using GET requests).

400: The requested resource cannot be found.

401: Insufficient permissions to access the resource.

403: No permission to access the resource.

404: The resource to be accessed does not exist.

405: The resource that needs to be accessed is prohibited.

407: The accessed resource requires proxy authentication.

414: The requested URL is too long.

500: Server internal error.

Complete the status code to avoid further searches:

100——The client must continue to make the request

101——The client requires the server to convert the HTTP protocol version according to the request

200——Transaction successful

201——Prompt to know the URL of the new file

202——Accept and process, but the processing is not completed

203——Return Uncertain or incomplete information

204——The request was received, but the return information was empty

205——The server completed the request, the user agent must reset the currently browsed files

206——The server has completed the GET request of some users

300——The requested resource can be obtained from multiple places

301——Delete the request data

302——Request data was found at other addresses

303——It is recommended that the client access other URLs or access methods

304——The client has performed GET, but the file has not changed

305——The requested resource must be obtained from the address specified by the server

306——The code used in the previous version of HTTP is no longer used in the current version

307—— Declares that the requested resource is temporarily deleted

400——Incorrect request, such as syntax error

401——Request authorization failed

402——Retain valid ChargeTo header response

403 - Request not allowed

404 - No file, query or URL found

405 - The method defined by the user in the Request-Line field is not allowed

406——According to the Accept drag sent by the user, the requested resource is inaccessible

407——Similar to 401, the user must first be authorized on the proxy server

408——The client is not in Complete the request within the user-specified time

409 - The request cannot be completed for the current resource status

410 - This resource no longer exists on the server and there is no further reference address

411 - Server rejects user-defined Content-Length attribute request

412 - One or more request header fields are incorrect in the current request

413 - The requested resource is larger than Size allowed by the server

414 - The requested resource URL is longer than the length allowed by the server

415 - The requested resource does not support the requested item format

416 - Contained in the request Range request header field, there is no range indication value within the current request resource range, and the request does not contain the If-Range request header field

417 - The server does not meet the expectations specified by the request Expect header field, if it is a proxy server , it may be that the next-level server cannot satisfy the request

500——The server generated an internal error

501——The server does not support the requested function

502——The server is temporarily unavailable Used, sometimes to prevent system overload

503 - Server overload or maintenance suspension

504 - Gate overload, the server uses another gate or service to respond to the user, waiting time setting Longer value

505 - The server does not support or refuses to support the HTTP version specified in the request header

The above is the detailed content of What are the common error codes in PHP?. For more information, please follow other related articles on the PHP Chinese website!