Are online tools reliable for determining the minimum PHP version required for a script?

Online tools can be reliable for determining the minimum PHP version required for a script, as they often analyze the code and dependencies to provide an accurate assessment. However, it's always good practice to double-check the results manually to ensure accuracy. One way to do this is by reviewing the PHP functions, language features, and syntax used in the script to determine the minimum PHP version required.

// Example code snippet to determine the minimum PHP version required for a script
$required_php_version = '7.2.0';

// Check if the current PHP version meets the minimum requirement
if (version_compare(PHP_VERSION, $required_php_version) < 0) {
    echo 'This script requires PHP version ' . $required_php_version . ' or higher.';
    // Additional actions can be taken if the PHP version is not met
} else {
    echo 'PHP version meets the minimum requirement.';
}