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Editorial Team
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Asked: 2026-05-14T16:56:21+00:00

A former developer wrote or client-server api in PHP. It simply sends messages as

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A former developer wrote or client-server api in PHP. It simply sends messages as xml using post/response in a very simplistic fashion. The problem is that even when there is an error (ex: invalid arguments passed into the server side) we get a HTTP 200 response with a page like this 

<h4>Unknown error!</h4>

In firebug I can see that the actually HTTP response is a 200. How can we send a different response (ie:503) when we programatically detect in our php code that it is appropriate to do so.

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1 Answer

  1. Editorial Team

    Use PHP’s header function to send the code (along with the HTTP version and any other headers you need). More complete info:

    When to send HTTP status code?

    http://php.net/manual/en/function.header.php

    http://en.wikipedia.org/wiki/List_of_HTTP_status_codes

    header('HTTP/1.1 503 Service Temporarily Unavailable');
header('Status: 503 Service Temporarily Unavailable');
header('Retry-After: 300');//300 seconds
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