In PHP, how do I validate arrays with built-in functions?

In PHP, you can validate arrays using various built-in functions to ensure that the array meets specific criteria. Common functions used for validation include `is_array()`, `empty()`, and `count()`. Below is an example that demonstrates how to validate an array in PHP.

<?php $array = [1, 2, 3, 4, 5]; // Check if it is an array if (!is_array($array)) { echo "Not a valid array."; } else { echo "Valid array.
"; } // Check if the array is empty if (empty($array)) { echo "Array is empty."; } else { echo "Array is not empty.
"; } // Check the count of the array if (count($array) > 0) { echo "Array has " . count($array) . " elements."; } else { echo "Array has no elements."; } ?>

PHP array validation built-in functions in PHP array validation example

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