Writing at the end of a defined line in a txt (How?)

[ovalearne]

Hi everyone

I have been working on how to do the following in quite som time now:

I have a txt-file:

Contents of dok.txt:

Line1text-
Line2text-
Line3text-
Line4text-
Line5text-
Line6text-

I would like a variable, $var, to be written at the end of a defined line, $line_no

When $var = "the text" and $linie_no = 3 it writes to dok.txt:

Line1text-
Line2text-
Line3text-the text
Line4text-
Line5text-
Line6text-

How do I write a script do that?

Thanx.

[Aurasia]

Why don't you do:

$txt = '
Line1text-
Line2text-
Line3text-
Line4text-
Line5text-
Line6text-'

$txt = str_replace('Line3text-','Line3text-'.$var3,$txt);

[ovalearne]

Thanks for reply!

I tried something that I thought would work, but no...

<?php          

  $file = fopen("dok.txt", 'r');          

  $linenumber = 0;                                 

  $line_no = 3;
  $return = "";
  $var = "the text";

  while(!feof($file)) {                         

            $line = fgets($file, 4096);         

            $linenumber++;                             

            if($linenumber == $line_no){         

                $return .= $line . $var;

        }
		else {

		$return .= $line;
		}
}           
fclose($file);                                      



$file = fopen('dok.txt', 'w');



fputs ($file, $return);

fclose($file);
?>

The result in dok.txt:

Line1text-
Line2text-
Line3text-
the textLine4text-
Line5text-
Line6text-

Now i'm not sure if i write to line 3, and there is some "/n" tag that makes it go in the beginning of line 4, or i'm writing to line 4 and there is a problem with $return...

Any ideas anyone?