Unload an extension from a php script

[rhysmeister]

Hi is it possible to dynamically unload or disable a certain extension from a php script? I want to disable DOMXML for a certain script.

[rhodesa]

not that i'm aware of...why would you want to disable it?

[rhysmeister]

This solution advises it (see bottom)

 

http://forums.digitalpoint.com/showthread.php?t=833

[rhodesa]

ah...XML. can you elaborate on what you are trying to accomplish? there is probably another option

[rhysmeister]

I just want to get the title of a web page from any given url.

 

I run a url shortenign service and I post a small number of links to twitter. It'll just be a nice touch to add the title of the html page.

[rhodesa]

ok...in that case...you don't want to use an XML parser. if the page doesn't validate as strict XHTML (which MOST pages don't) you won't be able to retrieve it. Instead, get it with regular expressions:

<?php
$contents = file_get_contents('http://www.cnn.com');
if(preg_match('/<title>(.+?)<\/title>/',$contents,$matches)){
  $title = $matches[1];
  print $title;
}
?>

[rhysmeister]

ok...in that case...you don't want to use an XML parser. if the page doesn't validate as strict XHTML (which MOST pages don't) you won't be able to retrieve it. Instead, get it with regular expressions:

 

Very good point. I went for DOM because it would't matter if the title tags were on different lines. I might try to stip out any newline characters.

 

Thanks, I will give your approach a go this evening.

[rhysmeister]

Added in

 

$contents = preg_replace("/\n|\r\n|\r$/", "", $contents);

 

and it seems to get around the issue of title tags being on different lines. Thanks for your help.

 

Rhys

[redarrow]

what about using str_replace instead then?

[rhodesa]

you should just be able to use

 

<?php
$contents = file_get_contents('http://www.cnn.com');
if(preg_match('/<title>(.+?)<\/title>/s',$contents,$matches)){
  $title = $matches[1];
  print $title;
}
?>

[rhysmeister]

Thanks, that nearly got it. Changed to '/<title>(.+?)<\/title>/si' to make the search case insensitive.

 

I've always shied away from regular expressions so never think to use them. Guess I shouldn't!