PHP Program for finding the frequency of numbers in given array

This program is useful for finding how many times any number is placed in any array. Suppose we have an array with elements as follows: 
$a = array (54,85,92,54,16,92,48);
Output will be: 
54 occurs 2 times 
85 occurs 1 times 
92 occurs 2 times 
16 occurs 1 times 
48 occurs 1 times . 
<?php
// Initialize array of elements
$a = array (54,85,92,54,16,92,48);
//If array will store frequencies of element
$fr = array_fill(0, count($a), 0);
$check = -1;
for($i = 0; $i < count($a); $i++)
{
$count = 1;
for($j = $i+1; $j < count($a); $j++)
{
if($a[$i] == $a[$j]) // If duplicate element is found increment count
{
$count++;
//To avoid counting same element again
$fr[$j] = $check;
}
}
if($fr[$i] != $check) //If element is not repeated count will be same
$fr[$i] =$count;
}
echo("The Array Elements are: ");
foreach( $a as $b )
{
echo $b."  ";
}
//Displays the frequency of each element in given array
echo (" frequency of given array elements: " );
for( $i = 0; $i < count($fr); $i++)
{
if($fr[$i] != $check)
{
echo( $a[$i] ." occurs " );
echo( $fr[$i]." times.");
echo(" ");
}
}
return 0;
?>
 
I hope you find this helpful.