What is the function "array_count_values" typically used for in PHP, and why did it not work in this case?

The issue with using "array_count_values" in this case is that it expects an array as input, but the provided variable is a string. To solve this issue, we need to first convert the string into an array before passing it to the "array_count_values" function.

// Convert the string into an array using str_split
$string = "hello";
$array = str_split($string);

// Use array_count_values to count the occurrences of each value in the array
$counts = array_count_values($array);

// Output the counts
print_r($counts);