从php URL字符串中获取变量

Question

What's the easiest way to grab a 6-character id from a string?

The id will always be after www.twitpic.com/ and will always be 6 characters.

e.g., $string = 'The url is http://www.twitpic.com/f1462i.  Enjoy.';
      $id = 'f1462i';

Thanks.

Answer 1

  $string = "http://www.twitpic.com/f1462i" ;
  $id = substr($string,strpos($string, 'twitpic.com')+strlen('twitpic.com')+1,6) ;
  echo $id ;