I'm trying to search a string in PHP using preg_match(), to return a string that takes the format of 'xdr', where x is a single digit.
The string is otherwise made of characters, numbers, '.' full stops and spaces.
I'm hopeless with regular expressions, can somebody help me out?
I've tried ^([a-zA-Z0-9]+)\s2dr$ but it doesn't work
For example, the string might look like A really big 2.0 was 3dr once
As far as I understand your needs, this regex will work to match a string that contains some number followed by dr:
/\b\d+dr\b/
in action in preg_match:
preg_match('/\b\d+dr\b/', $string);
explanation:
/ : regex delim
\b : word boundary
\d+ : one or more digit
dr : literaly dr
\b : word boundary
/ : regex delim
If you want the other characters to be only characters, numbers, '.' full stops and spaces use this:
preg_match('/^[\w\d. ]*\b\d+dr\b[\w\d. ]*$/', $string);
And, to be unicode compatible:
preg_match('/^[\pL\pN. ]*\b\pN+dr\b[\pL\pN. ]*$/', $string);
You're close.
The following regex will match a single digit followed by one or more alpha characters, numbers, full stops and spaces, and ends in dr.
^\d[a-zA-Z0-9. ]+dr$
Note: Not sure if you want the literal dr, if not, drop it from the end.
