Online PHP editor | output for 5Li6I

<?php class GeoCoder { protected $latitude; protected $longitude; public $distance; public function __construct($lat,$long,$dist) { $this->latitude = $lat; $this->longitude = $long; $this->distance = $dist; } } $o1 = new GeoCoder(-22.43,-46.81,1500.00); $o2 = new GeoCoder(-22.42,-46.82,1740.00); $o3 = new GeoCoder(-21.43,-46.80,152.00); $array = array($o1, $o2, $o3); function quickSort( &$array ) { $cur = 1; $stack[1]['l'] = 0; $stack[1]['r'] = count($array)-1; do { $l = $stack[$cur]['l']; $r = $stack[$cur]['r']; $cur--; do { $i = $l; $j = $r; $tmp = $array[(int)( ($l+$r)/2 )]; // partion the array in two parts. // left from $tmp are with smaller values, // right from $tmp are with bigger ones do { while( $array[$i]->distance < $tmp->distance ) $i++; while( $tmp->distance < $array[$j]->distance ) $j--; // swap elements from the two sides if( $i <= $j) { $w = $array[$i]; $array[$i] = $array[$j]; $array[$j] = $w; $i++; $j--; } }while( $i <= $j ); if( $i < $r ) { $cur++; $stack[$cur]['l'] = $i; $stack[$cur]['r'] = $r; } $r = $j; }while( $l < $r ); }while( $cur != 0 ); } var_dump(QuickSort($array);