MATCH (patient_1_question.terms) AGAINST ('+$term_1 +$term_2 +$term_3 +$term_4' IN BOOLEAN MODE

The function expects to be given a string containing a US English date format and will try to parse that format into a Unix timestamp

echo strtotime("now"), "\n";echo strtotime("10 September 2000"), "\n";echo strtotime("+1 day"), "\n";echo strtotime("+1 week"), "\n";echo strtotime("+1 week 2 days 4 hours 2 seconds"), "\n";echo strtotime("next Thursday"), "\n";echo strtotime("last Monday"), "\n";