<?php  
  $lim = (int)readline("\n Enter the limit :");   
  $num = 0;
  $n1 = 0;  
  $n2 = 1;  
  echo "Fibonacci series for first $lim numbers: \n";  
  echo $n1." ".$n2." ";  
  while ($num < ($lim-2) )
  {  
    $n3 = $n2 + $n1;  
    echo $n3." ";  
    $n1 = $n2;  
    $n2 = $n3;  
    $num++;
  }
?>