How to get commented string using regular expression in PHP?

Question

Hi,

I am trying to get commented strings in my code using regular expression in php.

Let's say I have following string.

$string = "
   ///<summary>
   ///test
   ///</summary>
";

I use preg_match_all for regular expression function.

when I put $string to preg_match_all, it displays

Warning: preg_match() [function.preg-match]: Unknown modifier 'string' in /home/document/public_html/test.php on line 10

I guess it is because I have modifiers(/) in $string.

How do I get around this?

Actual Code

$string = "
///<summary
///aaa
///</summary>
";

$pattern = "/\/\/\/<summary>\/\/\/.*\/\/\/</summary";

preg_match($pattern,$a,$match);

Answer 1

You don’t have to use / as delimiters. So try this:

$pattern = '~///<summary>\s*///.*///</summary>~s';

Answer 2

It would be easier to use a preg_match_all and do

/\/\/\/.*/

instead. That would match all lines that have /// at the beginning