What is the best way to merge two arrays and count the occurrences of each value in PHP?

To merge two arrays and count the occurrences of each value in PHP, you can use the array_merge function to combine the arrays, and then use the array_count_values function to count the occurrences of each value in the merged array.

$array1 = [1, 2, 3, 4, 5];
$array2 = [3, 4, 5, 6, 7];

$mergedArray = array_merge($array1, $array2);
$valueCounts = array_count_values($mergedArray);

print_r($valueCounts);