PHP Regex Dealing With Parenthesis

Question

As far as i understand regex tries to match everything mentioned in brackets

eg.

<b>(.*)</b>

Inside a larger regular expressions how do u differentiate between this and the braces mentioned in the regular expression to be matched.

(hello),(how)

in the above example we need to match brackets, but if the reg exp itself has paranthesis [as in first example] then how will it be differentiated?

Thanks

merlin2011 · Accepted Answer · 2014-04-29 04:01:05Z

2

If you want to match literal (), then you need to escape them in most regex engines, like this: \(, \).

answered Apr 29, 2014 at 4:01

merlin2011

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3 Comments

Aamir Over a year ago

Can u explain by writing a regular expression for the example in my question?? ( which can b used by preg_match In php)

merlin2011 Over a year ago

@Aamir, What exactly are you trying to capture? The stuff between the literal parenthesis? Including the literal parenthesis, or not including the literal parenthesis?

Aamir Over a year ago

tried out a few regular expressions and i understood now ... thanks for ur help

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