//娱乐 $a = array(11,22,3523,45,24,564,55,34,56423,5,34,654,4); $count = count($a); for($i=0;$i<$count;$i++){ $min = $a[$i]; $mink = $i; for($k=$i+1;$k<$count;$k++){ if($a[$k]<$min){ $min = $a[$k]; $mink = $k; } } $temp = $a[$i]; $a[$i] = $min; $a[$mink] = $temp; } print_r($a);