get numbers from string following specific character sequence

[FSIvan]

hi all. This seems like a good place to find a solution to my problem.

I'm trying to extract 2 sets of numbers from a string (a file name) following specific words within that string. For example I would like to extract the numbers 149 and 3614 following the expressions "jobno_" and "certificate_" from the following string 'jobno_149_certificate_3614_Grandpas_Florist.pdf'

Now I realize I can search for regular expression in a substring by specifying character numbers in the string but i need something a little more dynamic than that as the respective numbers following "jobno_" and "certificate_" will grow in time hence the need to find those words and output the numbers which directly follow them. The problem is that I'm a bit of a php noob and am not sure how to approach this. Any ideas?

[FSIvan]

Ok. Found a solution to the problem.
http://www.bitrepository.com/how-to-...-a-string.html