<?php $bar = null; $array = array( 'foo', 'bar', '', null, 0, $bar ); var_dump(array_values($array)); $array = array( 'foo' => 'foo', 'bar' => 'bar', 'baz' => '', 'null' => null, 'zero' => 0, 'var' => $bar ); var_dump(array_values($array)); var_dump(array_keys($array));
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