Need a quick help regarding regular expression (P

[Jaffery]

I need little help of any php programmer here for preg_replace.

What will be the regex to match following :

[img width=320 height=217]

Here value for width and height changes.

Actually I need it for cleaner.php , asking here as on vbulletin.com, there is not much help in this matter.

[The Geek]

Not 100% sure of what you're trying to do but this would grab the values from the above string:

\[img width=(\d*) height=(\d*)\]

so this:

PHP Code:

$subject = '[img width=320 height=217]';
$find = '/\[img width=(\d*) height=(\d*)\]/im';
$replace = 'width=\1 and height=\2';
$result = preg_replace($find, $replace , $subject); 


would give you:

width=320 and height=217

[Jaffery]

Using cleaner.php, I need to change all instances of [img width=320 height=217] to [img] in my forum which I recently converted from smf to vb.

I will try it and let you know.


btw, just asking as I am still understanding regex, what does widht=\1 and height width=\2 stands for. ie. \1 and \2 , what they denote ?

Thanx

Update: Thanx buddy, it helped.

[The Geek]

Originally Posted by Jaffery

Using cleaner.php, I need to change all instances of [img width=320 height=217] to [img] in my forum which I recently converted from smf to vb.

I will try it and let you know.


btw, just asking as I am still understanding regex, what does widht=\1 and height width=\2 stands for. ie. \1 and \2 , what they denote ?

Thanx

Update: Thanx buddy, it helped.

in the regex I gave you, the first (\d*) goes into \1 and the second one goes into \2

[Jaffery]

I need little more help..

What would be regex to match following :
[youtube=425,350]

rather I need to convert :

[youtube=425,350]NN7XXCDqzVg[/youtube]

TO

[video]http://www.youtube.com/watch?v=NN7XXCDqzVg[/video]

[ForumsMods]

Use the following regular expressions:

/\[youtube=(.*)\](.*)\[\/youtube\]/im

[Jaffery]

That would match whole following..

[youtube=425,350]NN7XXCDqzVg[/video]

However, I need to grab value which is in bold and then
Put it in :
[code][video]http://www.youtube.com/watch?v=NN7XXCDqzVg[/video]

I can do following:

PHP Code:

$subject = '[youtube=425,350]NN7XXCDqzVg[/youtube]';
$find = '/\[youtube=(\d*){3},(\d*){3}\][a-zA-Z-]*\[/youtube]/im';
$replace = '[video]http://www.youtube.com/watch?v=\3[/video]';
$result = preg_replace($find, $replace , $subject); 


Now kindly advice if that is ok as I am still not confident in regex and had hardly used backreference before.

[ForumsMods]

Use this:

PHP Code:

$subject = '[youtube=425,350]NN7XXCDqzVg[/youtube]';
$find = '/\[youtube=(.*)\](.*)\[\/youtube\]/im';
$replace = '[video]http://www.youtube.com/watch?v=\2[/video]';
$result = preg_replace($find, $replace , $subject);