array_count_values:返回数组中所有值出现的次数

跳至

$arr1 = ['a','b','c','d','e','e','a','a'];
$arr = array_count_values($arr1);

echo '';
print_r($arr);

result:
Array
(
    [a] => 3
    [b] => 1
    [c] => 1
    [d] => 1
    [e] => 2
)