3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ ['foo' => 'a', 'bar' => 1], ['foo' => 'b', 'bar' => 2], ]; foreach ($array as ['new' => &$x, 'bar' => $x]); var_export($array);

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24.86 ms | 404 KiB | 5 Q