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I'm having trouble getting my regex pattern to work. I've never been very good at it, and don't really know how it works in PHP.

From my understanding, I have to use preg_match_all to get all occurrences of a particular pattern correct?

This is what I want:

I have pages on my site like:
<a href="http://tomkent.me/user-12345.html">User1</a>

I want to get the User1 bit of the html, from a page containing about 50 of these URLs

I tried:

preg_match_all('<a href="http://tomkent.me/user-(.*).html">(.*?)</a>',$html,$matches);

as well as (escaping some things):

preg_match_all('<a href\=\"http\:\/\/tomkent\.me\/user\-(.*)\.html\">(.*?)<\/a>',$html,$matches);

But neither work when I try to output:

print_r($matches);

Any help would be appreciated

Give this a try:
http://gskinner.com/RegExr/

Also this, I find it very useful at times when I need:

http://regexlib.com

ok, so I made a pattern that works, but PHP gets no output to the $matches array

<a href="http://tomkent.me/user-(.*?).html">(.*?)</a>

Matches, both groups perfectly using that site, but PHP gets nothing I checked that it is getting the HTML, which it is.

Also check out http://codular.com/regex

EDIT: Could you perhaps post the whole code?

The whole code is pretty simple

$user = "http://tomkent.me/page-1.html";
$html = file_get_contents($user);

//debug: echo $html;

preg_match_all('<a href="http://tomkent.me/user-(.*?).html">(.*?)</a>',$html,$matches);

print_r($matches);

Note: The page I'm looking at is super secret, so I modified the link But, I can guarantee the HTML is loaded into $html

Ok, here's my code:

<?php

$message = "Hello <a href=\"http://tomkent.me/user-3.html\">Euan</a>";

$pattern = "#\<a href\=\"http\://tomkent.me/user-(?:\d*).html\"\>(.*?)\</a\>#i";

preg_match_all($pattern, $message, $match);

echo "<pre>";
var_dump($match);
echo "</pre>";

And the output:

array(2) {
  [0]=>
  array(1) {
    [0]=>
    string(48) "Euan"
  }
  [1]=>
  array(1) {
    [0]=>
    string(4) "Euan"
  }
}

Seems to work.

Thanks That seems to work fine I have no idea why mine didn't :/ Other than escaping the pattern (possibly the problem?)