vb.org Archive - preg_match help wanted

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SoloX

12-05-2009 03:43 AM

preg_match help wanted

Hi all:

I have strings like

PHP Code:


		
			
[media=34]filename.jpg[/media]

I need to use preg_match or other PHP technique to get the two variables (34, filename.jpg) out. Can someone please help?

Thanks

kh99	12-05-2009 04:42 AM

Well I'm not a regex expert or anything but I thought I'd give it a shot:

PHP Code:


		
			


$pat = '@\[media=(\d+)\](.+)\[/media\]@';

$str = '[media=34]filename.jpg[/media]';

preg_match($pat, $str, $matches);



print_r($matches);

output is:

Code:

Array

(

    [0] => [media=34]filename.jpg[/media]

    [1] => 34

    [2] => filename.jpg

)

SoloX

12-05-2009 04:58 AM

You are a confirmed genius, my friend. It works like a charm.

Thank you very much.

--------------- Added [DATE]1260000667[/DATE] at [TIME]1260000667[/TIME] ---------------

:D I am greedy and back for one more and hopefuly last Q for this project.
My strings can be

PHP Code:


		
			
[media=34]filename.jpg[/media]

PHP Code:


		
			
[media=34]http://www.d.com/filename.jpg[/media]

From the first example, I got $match[2] as either filename.jpg or httP://www.d.com/filename. Lets say I put that in another variable $var. How would I check if $var starts with http or not.

kh99	12-05-2009 04:39 PM

Hmm...maybe:

Code:

if (strncasecmp("http:", $var, 5) == 0) {

   // This is a url

}

One thing I thought of that posting last night, it doesn't handle white space very well, it's possible to write a pattern that would ignore any white space on either end of the file name. (Or I guess you could also use trim() on the result if it were an issue).

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