array_count_values
(PHP 4, PHP 5)
array_count_values — Counts all the values of an array
說明
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.
參數
- input
-
The array of values to count
Return值
Returns an assosiative array of values from input as keys and their count as value.
範例
Example#1 array_count_values() example
<?php
$array = array(1, "hello", 1, "world", "hello");
print_r(array_count_values($array));
?>
上例將輸出：
Array ( [1] => 2 [hello] => 2 [world] => 1 )