PreconditionRequired

HTTP 428 Precondition Required response class.

class PreconditionRequired extends \Hazaar\Controller\Response

Extends: Hazaar\Controller\Response

This response indicates that the origin server requires the request to be conditional. This is typically used to prevent the 'lost update' problem, where a client GETs a resource's state, modifies it, and PUTs it back to the server, while a third party has modified the state on the server, leading to a conflict.

Methods

__construct

Constructs the HTTP 428 Precondition Required response.

public __construct(string $contentType = 'text/html'): void

This constructor initializes the response with a status code of 428 and sets the content type.

Parameters

Parameter	Type	Description
$contentType	string	The content type of the response. Defaults to text/html.

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Generated by Hazaar API Doc Generator on Fri, 04 Sep 2026 23:32:16 +0000