regexp question

[jjshell]

Hi,

I'd like to do the following: explode an html document using all the occurences of tag. If [tag] appears 12 times, array will contain 12 elements.

Here's what I'm trying to do:

$blocks = preg_split("/<$tag(.)+>/", $html); 

It doesn't work as you can expect... Would someone know how to fix this?

Regards,

-jj.

[risoknop]

http://sk.php.net/explode

[jjshell]

It doesn't take into account the fact that there may be 'class="blah"' and 'id="foo"' within the html tag.

[Jake Arkinstall]

Have you tried:

$blocks = preg_split("/<{$tag}([^>]*)>/", $html); 

[jjshell]

It didn't work...

I changed my approach a little. I'm trying to find a reg exp that could do the following (please consider this string):

id="container">

I know there are a few characters before we reach the ">". I'd like to explode my string after the first ">" occurence, and get what was before the ">" and what comes after the ">" as two array elements... But regExp are beyond me...

[Jake Arkinstall]

Piece of advise that SilverBullet is always giving people doing the same thing as you - if you want to find elements etc in HTML or XML, utilise the DOM!

I really need to delve into programming with the DOM sometime soon...

[AnthonySterling]

*Runs in, sticks chest out and looks to the sky in a Superman-esk way*

Someone mention my name and DOM?

[crmalibu]

rofl

[AnthonySterling]

<?php
$sSomeDocument = '
<rootNode>
    <tag class="" atrrib="">One</tag>
    <tag atrrib="">Two</tag>
    <tag id="" atrrib="">Three</tag>
    <tag id="" class="" atrrib="">Four</tag>
    <tag>Five</tag>
    <nested>
        <tag>Six</tag>
        <tag id="" class="" atrrib="">Seven</tag>
        <tag id="" atrrib="">Eight</tag>
        <tag id="" class="" atrrib="">Nine</tag>
        <tag id="">Ten</tag>
    </nested>
</rootNode>
';

$oDOM = new DOMDocument();
$oDOM->loadXML($sSomeDocument);
foreach($oDOM->getElementsByTagName('tag') as $oNode)
{
    echo $oNode->nodeValue . '<br />';
}
/*
    One<br />
    Two<br />
    Three<br />
    Four<br />
    Five<br />
    Six<br />
    Seven<br />
    Eight<br />
    Nine<br />
    Ten<br />
*/
?>

[jjshell]

cool! sounds great

However, I get this error :

Warning: DOMDocument::loadHTML() [function.DOMDocument-loadHTML]: Input is not proper UTF-8, indicate encoding !

Yet I made sure that my html string contains a tag specifying that the encoding is utf-8...

[AnthonySterling]

Do you have any incorrectly encoded characters? Euro sign, Pound sign etc...?

[jjshell]

I had. I have now fixed it by making sure my $html string is utf-8 encoded.

However, I am now facing another problem. Please consider the following html code:

<div id="some-id">
  <div>
    Welcome
  <div>
</div> 

The "welcome" word is retrieved twice... How would you solve nested elements content retrieved more than once?

And also, if I print_r($oDOM->getElementsByTagName('div')), I can't get an array to be displayed. How could I do this?

Regards,

-jj.