preg_replace

[801119]

Greetings all,

I know preg_replace has been discussed several times, I'm not gonna ask for anything less than HELP! *lol*

I can't figure out how it works.. anyone can point me to a VERY good tutorial.

it's the $what and $with I don't understand
preg_replace($what,$with,$in_string);

My codes look like something a kid wrote
I have absolutely no idea what I am talking about
Somehow I still manage to make it work

 

[sleipnir214]

The crux of the matter is learning perl-compatible regular expressions, which can be hard to get your head around. The Apache webserver provides a module called mod_rewrite that uses regular expressions to rewrite and redirect user requests. The famous quote about mod_rewrite is "Despite the tons of examples and docs, mod_rewrite is voodoo. Damned cool voodoo, but still voodoo."


Here's a tutorial which talks about regular expressions in relation to PHP functions:

http://www.tote-taste.de/X-Project/regex/

There's the horse's mouth, the perl documentation:

http://www.perldoc.com/perl5.6.1/pod/perlre.html

There's

http://www.regular-expressions.info/

I found these and a lot more with the Google earch expression: "regular expressions" tutorial examples

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