PHP selection sorting algorithm implementation code

//Select sort function function
//Use references to reduce memory consumption
//Organization: bbs.it-home.org
function &select(&$arr){
 $count= count($arr);
 if($count>1){
 for($i=0;$i $k=$i;
 for($j=$i +1;$j if($arr[$j] $k=$j;
 }
 }
 if($k!= $i){
 $tmp=$arr[$k];
 $arr[$k]=$arr[$i];
 $arr[$i]=$tmp;
 }
 }
 }
 return $ arr;
}

//Print array function
function printArr(&$arr){
 echo "";
 print_r($arr);
 echo "";
}

 //Start testing
//Assign ten random values ​​to the array
for($i=0;$i $testArr[]=rand(10,100);
}
printArr(select($ testArr));
?>

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