What are some ways to improve the efficiency of PHP code when searching through multiple arrays for search criteria matches?

When searching through multiple arrays for search criteria matches in PHP, one way to improve efficiency is to use the array_filter() function along with a custom callback function. This allows you to filter out elements that do not match the search criteria without having to manually iterate through each array. By using array_filter(), you can streamline the search process and make it more efficient.

// Sample arrays to search through
$array1 = [1, 2, 3, 4, 5];
$array2 = [6, 7, 8, 9, 10];

// Search criteria
$searchCriteria = 3;

// Custom callback function to filter arrays based on search criteria
function searchCriteriaFilter($value) {
    global $searchCriteria;
    return $value == $searchCriteria;
}

// Filter arrays using array_filter() and custom callback function
$filteredArray1 = array_filter($array1, 'searchCriteriaFilter');
$filteredArray2 = array_filter($array2, 'searchCriteriaFilter');

// Output the results
print_r($filteredArray1);
print_r($filteredArray2);