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@ 2022-03-31T13:27:22Z

<?php

/**
 * @method &foo()
 */
class Test
{
    public $values = [];
    public function &__call($name, $args)
    {
        $this->values[$name] ??= null;
        return $this->values[$name];
    }
}

$test = new Test();
$foo =& $test->foo();
$foo = 42;

var_dump($test->values);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

31.05 ms | 404 KiB | 5 Q