(PHP 8 >= 8.1.0)
ReflectionFunctionAbstract::getClosureUsedVariables — Returns an array of the used variables in the Closure
Returns an array of the used variables in the Closure.
This function has no parameters.
Returns an array of the used variables in the Closure.
Example #1 ReflectionFunctionAbstract::getClosureUsedVariables() example
<?php
$one = 1;
$two = 2;
$function = function() use ($one, $two) {
static $three = 3;
};
$reflector = new ReflectionFunction($function);
var_dump($reflector->getClosureUsedVariables());
?>
The above example will output something similar to:
array(2) {
["one"]=>
int(1)
["two"]=>
int(2)
}