How to Increase the Maximum Length of URL Parameters in PHP's $_GET?

Max Size of URL Parameters in _GET

Q: In a PHP application accessing data through RESTful GET requests, a URL parameter fails to appear in the _GET array when exceeding a certain length. Is there a method to adjust this maximum length?

A: This issue might arise due to a limitation imposed by Suhosin. Suhosin patched PHP installations impose a default limit of 512 characters for GET parameters. While browsers and Apache support longer URLs, this limitation can cause issues.

Solution:

To extend the maximum length for parameters with Suhosin, add the following line to your php.ini configuration:

suhosin.get.max_value_length = <limit>

Substitute with the desired maximum length.

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