<?php
  # URL that generated this code:
  # http://txt2re.com/index-php.php3?s=42%2043&2&-1&-5

  $txt='42 43';

  $re1='(42)';	# Integer Number 1
  $re2='( )';	# White Space 1
  $re3='(\\d+)';	# Integer Number 2

  if ($c=preg_match_all ("/".$re1.$re2.$re3."/is", $txt, $matches))
  {
      $int1=$matches[1][0];
      $ws1=$matches[2][0];
      $int2=$matches[3][0];
      print "($int1) ($ws1) ($int2) \n";
  }

  #-----
  # Paste the code into a new php file. Then in Unix:
  # $ php x.php 
  #-----
?>