How do I convert 'Apr9,20037:33am' to a unix timestamp?

I have a开发者_StackOverflow社区 date in this format: Apr9,20037:33am

How do I turn into a timestamp?

strtotime() - Parse about any English textual datetime description into a Unix timestamp

$unix_timestamp = strtotime('Apr 9, 2002 11:33 am')

EDIT: Asker changed question, above no longer applies.

If you have a format that can't be parsed also take a look at: date_parse_from_format