从URL中提取Flickr照片ID

I need to extract a piece of a URL in PHP. From the URL http://www.flickr.com/photos/28370443@N08/7885410582 I need only the 7885410582 part.

My code:

$string2 = 'http://www.flickr.com/photos/28370443@N08/7885410582';
preg_match_all('~s/ (.*?) /~i',$string2,$matches, PREG_PATTERN_ORDER);
echo $matches[1][0] . '<br />';

Can anyone look at it and correct it for me? Thanks in advance.

try this regex:

\d+$

will find all digits before string end

or:

(?<=/)\d+$

will find all digits after / sign before string end

If the identifier you want is always the last in the URL, don't bother with regular expressions and instead use simple string functions.

<?php

$url = 'http://www.flickr.com/photos/28370443@N08/7885410582';

$flickr_id = substr($url, strrpos($url, "/") + 1);

echo $flickr_id; // 7885410582

Try this:

preg_match_all('~^.+/(\d+)$~',$string2,$matches);

Description

Demo

http://regex101.com/r/aL2hL3

Sample code

$string2 = 'http://www.flickr.com/photos/28370443@N08/7885410582';
preg_match('~^.+/(\d+)$~',$string2,$matches);
echo  $matches[1]; // 7885410582

you can use

$data = explode("/",$url)
$value = $data[sizeof($data)-1]