php - Regex doesn't get all before -


i have following string, want before a+.

am missing something?

string:

abcd www 6587 sm a+++ab

regex:

([0-9a-za-z]*?) a\+

output:

 sm a+

desired output:

abcd www 6587 sm

solution:

([0-9a-za-z].*?) a\+

was missing . (dot)

http://www.regexr.com/

use zero-width lookahead assertion

^.*(?=a\+)

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