strtotime()
function
Parses an English textual datetime description into a Unix timestamp.
Syntax
strtotime(string $datetime): int|false
Example
php
<?php
echo date('Y-m-d', strtotime('+30 days')); // 30 days from now
echo date('Y-m-d', strtotime('next Monday'));
echo date('Y-m-d', strtotime('-1 month'));
if (strtotime($expiry) < time()) {
echo 'Expired!';
}