preg_replace_callback HELP

I've got the following preg_replace_callback:

return preg_replace_callback('|<span class="glossary">(.*)</span>|', 'parse_content_array', $content);

PHP:

Which matches in $content the above span.
I want to change this regex make it more flexible, so that it will also match the following scenarios:
<div class="glossary">...</div>
<ul class="glossary">...</ul>
.....
<anything class="glossary">...</anything>

Also allowing the class definition to be anywhere within the tag.
eg: <anything id="something" class="glossary"> ... </anything>
etc

I think, also being able to match such a case:
eg: <anything style="something" class="firstclass glossary thirdclass"> .... </anything> (where this is more than 1 class defines)

Many thanks

 

$tags_array = array('span', 'div', 'ul', 'anything');
$tags = implode("|", $tags_array);
$content = preg_replace_callback('~<('.$tags.').+?class\s*=\s*"glossary">(.+?)</('.$tags.')>~i', 'parse_content_array', $content);

PHP:

 

Thanks for that, it doesn't seem to work with the ul tags though. Strange.
Eg:
<ul class="glossary"><li>yada yada yada yada</li></ul>

 

Hmm...I don't have anywhere to test the code atm, but you should get the following:

<li>yada yada yada yada</li>

as $input[2] within the parse_content_array() function??

 

Thanks you've been great help.

From my debugging with the ul it doesn't even get into parse_content_array function.

Also, on another note, I have been using $content[0] not $content[1] within the function parse_content_array($content), when I used 1 it returned weird results with the div/p instances.

 

Hmm it works, use $input[2]...

Example code (this will output contents of $input[2]):

<?php

function parse_content_array($input) {
die($input[2]);
}

$content = '<ul class="glossary"><li>yada yada yada yada</li></ul>';
$tags_array = array('span', 'div', 'ul', 'anything');
$tags = implode("|", $tags_array);
$content = preg_replace_callback('~<('.$tags.').+?class\s*=\s*"glossary">(.+?)</('.$tags.')>~i', 'parse_content_array', $content);

?>

PHP:

Whereas $input[0] would return the whole lot.

 

Hmmm fascinating. Can't get it to work in my wordpress php code. But as a standalone test file the above works. :s

 

Must be the rest of your code then as my code works...in your case you'd be using $content[2]? can you post the parse_content_array function your using along with any supporting code (such as the usage code).

 

I'm actually using $content[0] as I want the div/p/ul or whatever tags to be returned with it. But I tried 2, and same problem.


currently my function just echos the $content[0] which is why I know for the ul tag it isn't even getting into it like echo "[".$content[0]."]";

 

function red_glossary_parse_content_array($content)
{	
   echo "[".$content[0]."]";
   return $content[0];
}
function red_glossary_parse($content){	

$tags_array = array('span', 'div', 'ul', 'li', 'p');
$tags = implode("|", $tags_array);
return preg_replace_callback('~<('.$tags.').+?class\s*=\s*"glossary">(.+?)</('.$tags.')>~i', 'red_glossary_parse_content_array', $content);


}

PHP:

 

Hmm, heres a test for you, which worked for me:

The code:

<?php
function parse_content_array($content) {
echo "[".$content[0]."]";
}

$content = '<ul class="glossary"><li>yada yada yada yada</li></ul>';
$tags_array = array('span', 'div', 'ul', 'anything');
$tags = implode("|", $tags_array);
$content = preg_replace_callback('~<('.$tags.').+?class\s*=\s*"glossary">(.+?)</('.$tags.')>~i', 'parse_content_array', $content);

?>

PHP:

It returned:

[<ul class="glossary"><li>yada yada yada yada</li></ul>]

Code (markup):

Theirfore I don't see why it would'nt return that for you?

 

The content in theory is a large page of text, not just a single line like <ul class="glossary"><li>yada yada yada yada</li></ul>, could that be a problem, new lines etc.? though I don't see why, seeing it works with other tags.

 

ps. I'm uploading it to my server, and will PM you a link to the page in question. If that is ok.
p.p.s. Thanks so much for your efforts!!

 

If new lines is the case, you could add the 's' modifier to the end of the regular expression to see if that helps;

replace:

$content = preg_replace_callback('~<('.$tags.').+?class\s*=\s*"glossary">(.+?)</('.$tags.')>~i', 'parse_content_array', $content);

PHP:

with:

$content = preg_replace_callback('~<('.$tags.').+?class\s*=\s*"glossary">(.+?)</('.$tags.')>~is', 'parse_content_array', $content);

PHP:

and follow the instructions posted @ post #11 (my previous post)

 

Or could it be to do with the<ul> having <li> tags within it, and li being listed in the $tags_array?

When I try with your example it returns, [<ul class="glossary"><li>yada yada yada yada</li></ul>]
But when I add, li to $tags_array such as:
$tags_array = array('span', 'div', 'ul', 'li');
It returns:
[<ul class="glossary"><li>yada yada yada yada</li>] (missing </ul>)
Even though in your scenario at least it gets into parse_content_array, mine doesn't even get that far.

 

<?php
function red_glossary_parse_content_array($content)
{  
   echo "[".$content[0]."]";
   return $content[0];
}
function red_glossary_parse($content){ 
$tags_array = array('span', 'div', 'ul', 'li', 'p');
$tags = implode("|", $tags_array);
return preg_replace_callback('~<('.$tags.').+?class\s*=\s*"glossary">(.+?)</('.$tags.')>~is', 'red_glossary_parse_content_array', $content);
}

//contains new line
$str = '<ul class="glossary"><li>yada yada yada 
yada</li></ul>';
echo red_glossary_parse($str);
?>

PHP:

That works, adding the 's' modifier did the trick -> demo: http://dan.x10.bz/test.php

Let me know how that goes.

 

yes, the s worked beautifully!! wooo! ur a champ.
Now for this missing </ul> tag in $content[0]

Or is it not passed into red_glossary_parse_content_array, and as such won't be passed out?

 

The src on http://dan.x10.bz/test.php returns:

[<ul class="glossary"><li>yada yada yada
yada</li>]<ul class="glossary"><li>yada yada yada

yada</li></ul>

Code (markup):

When $content[0] is wrapped within [ ] it does'nt return the ending tag whereas when its not; it does (or atleast it seems that way?)..unless its because im tired as its 2.34 am :/

I'll do some debugging/investigating and get back to you.

 

Haha yeah I noticed it was in the second half of the view source but not the [] part.
But thanks much, works great now. I was trying to do this at 2:30am my time last night and couldn't work it out, so well done.

 

Here you go (rectified the red_glossary_parse() function):

<?php
function red_glossary_parse_content_array($content)
{  
   return "[".$content[0]."]";
}
function red_glossary_parse($content){
$tags_array = array('span', 'div', 'ul', 'li', 'p');
foreach($tags_array as $tag) {
$content = preg_replace_callback('~<'.$tag.'.+?class\s*=\s*"glossary">(.+?)</'.$tag.'>~is', 'red_glossary_parse_content_array', $content);
}
return $content;
}

//contains new line
$str = '<ul class="glossary"><li>yada yada yada
yada</li></ul>';
echo red_glossary_parse($str);
?>

PHP:

Let me know how that goes, so I can unsubscribe from this thread.