(PHP4 >= 4.0b4)
array array_count_values (array input)
array array_count_values
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
$array = array (1, "hello", 1, "world", "hello"); array_count_values ($array); // returns array (1=>2, "hello"=>2, "world"=>1)