(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.
此函数没有参数。
Returns an array of the used variables in the Closure.
示例 #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());
?>以上示例的输出类似于：
array(2) {
["one"]=>
int(1)
["two"]=>
int(2)
}