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<?php function quicksort( $array ) { if( count( $array ) < 2 ) { return $array; } $left = $right = array( ); reset( $array ); $pivot_key = key( $array ); $pivot = array_shift( $array ); foreach( $array as $k => $v ) { if( $v < $pivot ) $left[$k] = $v; else $right[$k] = $v; } return array_merge(quicksort($left), array($pivot_key => $pivot), quicksort($right)); } //Using quicksort() $array = quicksort(array(5,7,8,9,1,4,6,3,5,9,1,2,5,4,5,8,6)); //returns sorted array.
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