Online PHP editor | output for 2tcVK

<?php $arrDates = array( "12/25/2009","01/10/2008","02/12/2000","03/17/1948", "03/06/1948","11/25/1972","10/23/2009","01/14/2008", "02/22/2000","03/27/1948","03/16/1948","11/24/1972", "11/13/2009","11/10/2008","12/12/2000","05/17/1948", "05/06/1948","10/25/1972","09/23/2009","02/14/2008", "03/22/2000","04/27/1948","04/16/1948","08/24/1972" ); /** * swapValue() * @param array $array * @param int $dex * swap two array values **/ function swapValues( $array, $dex ) { list($array[$dex],$array[$dex + 1]) = array($array[$dex + 1], $array[$dex]); return $array; } /** * bubbleSort() * @param array $array * performs bubble sort using traditional bubble sort **/ function bubbleSort( $array ) { $size = count($array) - 1; // zero-based array 'indexing' $swapped = 0; do { $swapped = 0; for ($x = 0; $x < $size; $x++) { if ( strtotime($array[ $x ]) > strtotime($array[ $x + 1])) { $array = swapValues($array,$x); $swapped = 1; } } } while ($swapped); return $array; } var_dump(bubbleSort( $arrDates ));