array_count_values — Counts the occurrences of all
elements in the argument and returns an associative array
of the resulting frequencies.
array values: Array of
values to count
Associative array; NULL if given an invalid argument
Passing an array to array_count_values() returns
an associative array in which all the unique elements are
counted and returned with the values as the keys and the
frequencies as the values.
PHP 4 since 4.0b4
Example 18. Display the number
of times a given element occurs in an array
$scores = array('A', 'A', 'C', 'B', 'A', 'C', 'C', 'B', 'A');
$grades = array_count_values($scores);
echo "There were $grades[A] A's, $grades[B] B's, and $grades[C] C's";
There were 4 A's, 2 B's, and 3 C's
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
This material may be distributed only subject to the terms and conditions set forth
in the Open Publication License, v1.0 or later (the latest version is presently available at
The authors of this book have elected not to choose any options under the OPL. This online book was obtained
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