Extractign a Substring...

[natasha_thomas]

Folks,

 

I want to extract something from a URL, i think we need to use regex for this.

 

Example URL:

http://www.amazon.co.uk/gp/aw/d/B004JN01LW/ref=mp_s_a_1?qid=1305169492&sr=8-1

 

What we need to Extract:

So we need to extract  B004JN01LW  from the URL.

 

I tried to use substr() but i think its not useful for this purpose, can someone help me with Regex to extract this?

 

Cheers

Natasha

 

[gizmola]

Is it always the number here?  d/....../

[kenrbnsn]

If the URL is always going to look similar to that example, you can do something like

<?php
$str = 'http://www.amazon.co.uk/gp/aw/d/B004JN01LW/ref=mp_s_a_1?qid=1305169492&sr=8-1';
$x  = parse_url($str);
list(,,,,$part) = explode('/',$x['path']);
echo $part . "<br>";
?>

 

Ken

 

[natasha_thomas]

Is it always the number here?  d/....../

 

Thanks for the Reply Gizmola.

 

R u asking the str i want to extract will it be Number? - It will always be Alphanumeric.

[natasha_thomas]

If the URL is always going to look similar to that example, you can do something like

<?php
$str = 'http://www.amazon.co.uk/gp/aw/d/B004JN01LW/ref=mp_s_a_1?qid=1305169492&sr=8-1';
$x  = parse_url($str);
list(,,,,$part) = explode('/',$x['path']);
echo $part . "<br>";
?>

 

Ken

 

Thanks Ken.. Works Good.

 

Thank you so much to both the Senior Members (Ken & Gizmola).

[gizmola]

no I was asking if the number always follows the /d/ in the url. 

 

Also check out Ken's code... a very high performance solution to it, not that it matters that much for one call whether it's optimal, but that is good code and uses some nice php functions there.

[natasha_thomas]

One last Request:

 

http://my.domain.com/Pages/ViewItem.aspx?aid=230620298886&sv=paintball&emvcc=0

 

Need to extract: 230620298886

 

Cheers

N

[kenrbnsn]

For that I would use parse_str as well as parse_url

<?php
$str = 'http://my.domain.com/Pages/ViewItem.aspx?aid=230620298886&sv=paintball&emvcc=0';
$x = parse_url($str);
parse_str($x['query'],$y);
echo $y['aid'] . "<br>";
?>

 

Ken

[natasha_thomas]

For that I would use parse_str as well as parse_url

<?php
$str = 'http://my.domain.com/Pages/ViewItem.aspx?aid=230620298886&sv=paintball&emvcc=0';
$x = parse_url($str);
parse_str($x['query'],$y);
echo $y['aid'] . "<br>";
?>

 

Ken

 

 

Again Thank You to Ken & Gizmola for Guidance... As always....

[gizmola]

Haha, I just sat back while Ken did all the work... sorta like management.

[kenrbnsn]

Haha, I just sat back while Ken did all the work... sorta like management.

That's ok -- I like hands-on better than management

 

Ken

[natasha_thomas]

Thanks the Beauty of being here... Many seniors are all here to Guide....

Cheers