Topic awaiting preservation: Regular Expressions/PHP (Page 1 of 1)

How can i test a string if it contians one of the characters: \/*?

preg_match('/[\\\/*?

Thanks.
What further characters are not allowed in a filename?

Here's something I've always wondered...The search conditions in the preg_replace (like the above example of '/[\\\/*?

Perl compatible reg exp syntax
- that's the definte read on that topic, skaarjj.
Those 'search conditions' (regular expressions) are a little language of their own.

In this particular example the arrangement is not important.

What jiblet did was just create his own set of characters by using the square brackets

anything within square brackets creates a set of characters to look for.
[ab] would search for the two characters "a" and "b"

the only bits that make this a little funny to look at is that there's a couple of characters he needed to escape because they are reserved regular expression characters or in the case of the single quote so that he doesn't break the php quote opening the statement.



.:[ Never resist a perfect moment ]:.

Okay, I did not test that statement to verify that it's exactly correct. The complication is that there are two layers of parsing going on. First PHP parses the string itself. Because I used single quotes, I need to escape the single quote within the string. Additionally, a double backslash will be parsed into one. So while we start with:

preg_match('/[\\\/*?