Replacing line in text file

[Iiro]

Hi,

is there any way to replace line in text file? I know how to clear line, but replacing it is problem to me. For example, I have file that looks like this:

lalalall|lalalla|lalla
kokokok|kokoko|kokoko
eeeee|eeee|eeee

and I want to replace line with red color with another text.

Thanks in advance.

[Twey]

define('LINE_BREAK', "\n"); // \n for *n?x, \r\n for Windows

function replaceLine($fileName, $oldLine, $newLine) {
  $lines = file($fileName);
  for($i = 0; $i < count($lines); ++$i)
    if($lines[$i] == $oldLine)
      $lines[$i] = $newLine;
  $f = fopen($fileName, 'w');
  fwrite($f, implode(LINE_BREAK, $lines));
  fclose($f);
}

You might want to also see this thread.

[Iiro]

I tried that, but isn't working...

[Twey]

Sorry, there was a broken BBCode in it.

[Iiro]

I notified, but it weren't working... I solved the problem myself..

[shachi]

liro: Would you like to share how you fixed it?? It's not a must of course. But I am having the same problem.

[Iiro]

liro: Would you like to share how you fixed it?? It's not a must of course. But I am having the same problem.

Ok, here:

<?php
//Function for replacing line in text file.
//Credit: Iiro Krankka
function replaceLineInTextFile($file, $pattern, $replacement) {
    if(!file_exists($file)) { // if file doesn't exist...
        print "The specified file doesn't seem to exist."; // ...stop executing code.
    } else { // if file exists...
        $f = file($file); // ...make new variable...
        $content; // ...and another...

        for($i = 0; $i < count($f); $i++) { // ...run through the loop...
            if(eregi($pattern, $f[$i])) { // and
                $content .= $replacement . "\n"; // get
            } else { // the
                $content .= $f[$i]; // content.
            }
        }

        $fi = fopen($file, "w"); // open specified file...
        fwrite($fi, $content); // and rewrite it's content.
        fclose($fi); // close file.

        print "Line replaced!!!";
    }
}

replaceLineInTextFile("online.txt", "1", "Found!"); // testing...
?>

I used it this way (variables in Finnish):

<?php 
function replaceLine($f, $etsi, $uus) {
    if(!file_exists($f)) {
        die("Tiedostoa " . $f . " ei löytynyt.");
    } else {
    $filu = file($f);
    $sisalto;

        for($i = 0; $i < count($filu); $i++) {
            list($id, $nimi, $passu) = explode("|", $filu[$i]);

            if($id == $etsi) {
                $sisalto .= $id . "|" . $uus . "\n";
            } else {
                $sisalto .= $filu[$i];
            }
        }

        $fi = fopen($f, "w");
        fwrite($fi, $sisalto);
        fclose($fi);
    }
}

replaceLine("online.txt", "43534", "haha|vaihto!!");
?>

and my online.txt file:

34344|hehe|passu
43433|hehe|passu
45342|hehe|passu
45646|hehe|passu
43534|haha|passu
76876|hehe|passu
76867|hehe|passu
34534|hehe|passu

P.S. Do You have Messenger? It would be great to share some scripts....

[shachi]

Thanks liro, Twey.
liro: Yes I have messenger but I don't use them, I just use online messeging services like meebo, gmail and e-messenger.net. I will try to execute your script and see if it works for me.

liro: If you are talking about PHP scripts then I am not very good at it if javascript then I am not perfect at it.