using

Executes a callback within a controlled scope, ensuring resources are released at the end.

This function MUST create a Defer instance, pass it to the factory, and execute the callback. The Defer instance SHALL be unset after execution.

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• Full name: using
• Defined in: functions.php

Parameters

Parameter	Type	Description
$factory	callable	a function that receives the Defer and returns the resource
$callback	callable	a function that receives the resource and executes the desired logic

Return Value

mixed

the return value of the callback