as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
create a php script to detect whether a string contains a number.
user
<?php
function containsnumber($string) {
    if (preg_match('/\\d/', $string)) {
        return true;
    }
    return false;
}
?>
assistant