Multiline regex issue in PHP

tags:

php
regex

views:

answers:

Multiline regex issue in PHP

Hello,

Consider the code below, why it is not working?

<?php

$str = "
<h4>
   title
</h4>
";

$result = preg_match_all ('/<h4>([\d\D])<\/h4>/mi', $str, $matches);
var_dump($matches);

+2 A:

MvanGeest 2010-08-08 11:14:39

+1 for s switch

Mark Baker 2010-08-08 11:48:40

Maybe using .* instead of .+ in case of a empty node. Shouldn't be happening but depending on how HTML source is generated... mieux vaut prévenir que guérir

fabjoa 2010-08-08 11:56:37

I removed the greediness, because that might match right up to the end tag of the very last h4 in the document! I hope to receive some feedback from Howard.

MvanGeest 2010-08-08 12:02:09

Will it "probably include the newlines in your match"; I had no idea the matching was a matter of probablies.

salathe 2010-08-08 12:29:36

No, it isn't. I meant "My personal opinion is that it will include the newlines in your match, but I have too little experience with PHP's PCRE (and I didn't test it), so I'm not sure if this will happen!" You're invited (by me, but more importantly, by SO) to edit my answer and confirm or deny the statement, or comment on it explaining if this will happen.

MvanGeest 2010-08-08 12:38:54

ansaurus

tags:

views:

answers:

Multiline regex issue in PHP

related questions