How can you check the PHP version of the server to determine if it supports scandir()?

To check the PHP version of the server to determine if it supports scandir(), you can use the phpversion() function to get the current PHP version and then compare it to the minimum version required for scandir() support. If the PHP version is equal to or greater than the required version, you can safely use the scandir() function.

$required_php_version = '5.3.0';

if (version_compare(phpversion(), $required_php_version, '>=')) {
    // PHP version supports scandir()
    // Your code using scandir() goes here
} else {
    // PHP version does not support scandir()
    echo 'PHP version does not support scandir()';
}