How can one determine the PHP version required to run a script?

To determine the PHP version required to run a script, you can use the PHP_VERSION constant which holds the current PHP version running on the server. By comparing this constant with the minimum required PHP version for the script, you can ensure that the script will run without any compatibility issues. 

$required_php_version = '7.2.0'; // Specify the minimum required PHP version

if (version_compare(PHP_VERSION, $required_php_version, '<')) {
    die('This script requires PHP version ' . $required_php_version . ' or higher.');
}

Keywords

PHP version script compatibility version check phpinfo() version_compare

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