PHP bubble sort algorithm implementation code

//Bubble sort function
//This function uses references to avoid memory consumption
//Organization: bbs.it-home.org
function &bubble(&$arr){
 $ count=count($arr);
 if($count>1){
 for($i=0;$i<$count;$i++){
 for($j=$count-1;$j>= $i;$j--){
 if($arr[$j-1]>$arr[$j]){
 $temp=$arr[$j-1];
 $arr[$j- 1]=$arr[$j];
 $arr[$j]=$temp;
 }
 }
 }
 }
 return $arr;
}

//Output array (convenient for viewing on the web page)
function printArr(&$arr){
 echo ""; </li>
<li> print_r($arr); </li>
<li> echo "";
}

//Start the test
//Assign ten randomly to the array Value
for($i=0;$i<10;$i++){
 $testArr[]=rand(10,100);
}

printArr(bubble($testArr));
?>

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