- var_dump: documentation ( source)
- reset: documentation ( source)
<?php
var_dump( @reset($x)['dfsa'] );
$x = 3;
var_dump( @reset($x)['dfsa'] );
$x = ['dfsa'];
var_dump( @reset($x)['dfsa'] );
$x = [3 => ['dfsa' => 'Y']];
var_dump( @reset($x)['dfsa'] );