Preg_Match Error To Get Line

Question

if(preg_match("//*/i",$line))echo "comment start";
if(preg_match("/*//i",$line))echo "comment end";

I'm searching comments which one starts with /* and end with */ and I cant get any result with this code. I’m trying to get comment start and end line.

Giacomo1968 · Answer 1 · 2013-12-25T22:08:33.323

1

Try this:

$line = '/* Hello, world! This is a comment! */';

if (preg_match("/^\/\*(.*)/i", $line)) echo "comment start";
if (preg_match("/(.*)\*\/$/i", $line)) echo "comment end";

You need to escape out slashes like / with a \ preceding it. Otherwise it’s interpreted as part of the regex logic & not something you are looking for. But that said, unclear what you want to get out of matching the beginning & ending parts of the comment.

edited Dec 25 '13 at 22:08

answered Dec 25 '13 at 21:49

Giacomo1968

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@sabujhassan Yes, it does work. But the logic of the original poster’s question is unclear. – Giacomo1968 Dec 25 '13 at 22:01
@sabujhassan If you have a better answer to the question, please post it as your own answer & do not edit or vandalize the post’s of others to make your point. – Giacomo1968 Dec 25 '13 at 22:05
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@sabujhassan Do you have a better answer to prove this code wrong? Then provide it. And stop harassing me. – Giacomo1968 Dec 25 '13 at 22:09
Your code is now correct. But it wasn't before I informed you :-) – Sabuj Hassan Dec 25 '13 at 22:11

score 0 · Answer 2 · answered Dec 26 '13 at 15:41

0

try this:

 if (preg_match('/\\\\\*/i', $line)) echo "comment start";  
 if (preg_match('%\*/%i', $line)) echo "comment end";

answered Dec 26 '13 at 15:41

Pedro Lobito

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Preg_Match Error To Get Line

2 Answers2