php数组排序几个程序实例_PHP教程

function selectSort($arr,$style)
             {
                 $temp=0;
                 for($i=0;$i                  {
                     for($j=$i+1;$j                      {
                         if($style=='bts') $op=$arr[$i]                          else if($style=='stb') $op=$arr[$i]>$arr[$j];
                         if($op)
                         {
                             $temp=$arr[$i];
                             $arr[$i]=$arr[$j];
                             $arr[$j]=$temp;
                         }
                     }
                 }
                 foreach ($arr as $key => $value)
                 {
                     echo $value.',';   
                 }
             }
             $arr1=array(21.5,33,90,7,-4,5,55,11);
             selectSort($arr1,'stb');

function maoPao($arr,$style)    {
                 $temp=0;
                 for($i=0;$i                  {
                     for($j=0;$j                      {
                         if($style=='bts') $op=$arr[$j]                          else if($style=='stb') $op=$arr[$j]>$arr[$j+1];
                         if($op)
                         {
                             $temp=$arr[$j];
                             $arr[$j]=$arr[$j+1];
                             $arr[$j+1]=$temp;
                         }
                     }
                 }
                 foreach ($arr as $key => $value)
                 {
                     echo $value.',';   
                 }
             }
             $arr1=array(101,101,-9,-8,0,76,1,57,43,90,23,-56);
             maoPao($arr1,'stb');//small to big

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function insertSort($arr,$style)
             {
                 $temp=0;
                 for($i=1;$i                  {
                     for($j=0;$j                      {
                         if($style=='bts') $op=$arr[$j]                          else if($style=='stb') $op=$arr[$j]>$arr[$i];
                         if($op)
                         {
                             $temp=$arr[$j];
                             $arr[$j]=$arr[$i];
                             $arr[$i]=$temp;
                         }
                     }
                 }
                 foreach ($arr as $key => $value)
                 {
                     echo $value.',';   
                 }
             }
             $arr1=array(4,7,0,-7,1,14,5);
             insertSort($arr1,'bts');