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When is http_response_code() ever needed?


NotionCommotion
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http://php.net/manual/en/function.http-response-code.php will Get or Set the HTTP response code.

 

Why would one ever need to do so?

 

The documentation appears to just return an integer.  Does it send headers as well?  Guess that would be nice so I don't need to create them myself such as "HTTP/1.1 200 OK".  I would like to leave the default at 200, but only do differently explicitly.  But doesn't it change it for future?

Edited by NotionCommotion
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The function sets (or gets) the HTTP code of the upcoming response. It does not send any headers. The big advantage over setting the code manually with a header() call is that you can omit the HTTP version as well as the reason phrase (“OK”, “Not Found”, ...). PHP will figure those out for you.

 

I use the function regularly, e. g. for error handling (issue a 400 code if the input validation failed).

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