In PHP, how do I validate arrays for production systems?

Validating arrays in PHP is crucial for production systems to ensure data integrity and prevent vulnerabilities. Here's how you can effectively validate arrays:


        <?php
        function validateArray($array) {
            // Check if the input is an array
            if (!is_array($array)) {
                return "Input is not a valid array.";
            }

            // Validate array elements
            foreach ($array as $key => $value) {
                if (empty($value)) {
                    return "Array contains empty values at key: $key";
                }
                // Additional validation checks can be added here
            }

            return "Array validation successful.";
        }

        // Example usage
        $data = ['item1', 'item2', ''];
        echo validateArray($data);
        ?>