array_count_values
    (PHP 4, PHP 5)
array_count_values -- Counts all the values of an array
Description
array 
array_count_values ( array input )
     array_count_values() returns an array using
     the values of the input array as keys and
     their frequency in input as values.
    
     
Example 1. array_count_values() example 
<?php $array = array(1, "hello", 1, "world", "hello"); print_r(array_count_values($array)); ?>
 |  
 The above example will output: Array
(
    [1] => 2
    [hello] => 2
    [world] => 1
) |  
  | 
    
     See also count(),
     array_unique(),
     array_values(), and
     count_chars().