Y::z PHP Method

z() public method

public z ( )
    function z()
    {
        // wrong (concatenation)
        array_filter($a, array($this, "{$x}"));
        array_filter($a, array($this, "parent::{$x4}"));
        // OK (strings)
        array_filter($a, array($this, 'x33'));
        preg_replace_callback('asd', 'df', array($this, 'x34'));
    }