fork(1) download
  1. <?php
  2.  
  3. $var = 'itemid=537600240%3fusername%3d& ';
  4.  
  5. $regex = '/itemid=([0-9]+)/';
  6.  
  7. preg_match ( $regex, $var, $result);
  8.  
  9. echo $result[1];
  10.  
  11. ?>
  12.  
Success #stdin #stdout 0.01s 20520KB
stdin
Standard input is empty
stdout
537600240