gc_enable()

gc_enable() — Activates the circular reference collector.

Built-in function of PHP 8.5. The manual lists it as available in PHP 5 >= 5.3.0, PHP 7, PHP 8. This page is the reference card: signature, parameters and return value, plus the changelog and the example the manual provides.

What it does

Activates the circular reference collector, setting zend.enable_gc to 1.

Signature

gc_enable(): void

Parameters

This function takes no parameters.

Return value

No value is returned.

Example

The PHP manual ships no example for gc_enable(); the signature and the parameter table above are the contract.

All PHP 8.5 built-in functions

Reference card built from the PHP manual page gc_enable() (PHP documentation, CC BY 3.0). The page is generated from the manual, so the wording of the parameter and return value text follows php.net.