PHP Program to Separate Zeros from the given Array elements

Hello guys, this program is used to find all the zeros in any given array and shift those zeros in the last for example. 
Given array: 1 8 5 0 4 0 5 1 0 0 4 
Output: 1 8 5 4 5 1 4 0 0 0 0
Program::
//To separate zeros from the given array elements
<html>
     <head>
       <title>PHP Program To separate zeros from the given array elements</title>
    </head>
<body>
  <?php
function pushZerosToEnd(&$arr, $n)
{
// Count of non-zero elements
$count = 0;
//If element encountered is non-zero
//Then replace the element at index 'count' with this element
for ($i = 0; $i < $n; $i++)
if ($arr[$i] != 0)
$arr[$count++] = $arr[$i]; // Here count is incremented
// Now all non-zero elements have been shifted to front and 'count' is set as index of first 0.
//Make all elements 0 from count to end.
while ($count < $n)
$arr[$count++] = 0;
}
$arr = array(1, 9, 8, 4, 0, 0, 2, 7, 0, 6, 0, 9);
$n = sizeof($arr);
echo "Array Elements : \n";
foreach ($arr as $value)
{
echo $value." ";
}
pushZerosToEnd($arr, $n);
echo "The rearranged array is given below :\n";
for ($i = 0; $i < $n; $i++)
echo $arr[$i ] . " ";
return 0;
?>
  </body>
</html

PHP Program to Separate Zeros from the given Array elements

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