Replace a String within a File

[Hotkey]

Hi all !

I've got a problem with replacing a String in a File with a new one.
For example i got a File called xyz.txt.
Within this File there is a Line like the following :
//REPLACE_ME

Now i want my PHP Script to find, and then replace this line with something like the following :
$TEST="true";

So i'll get a modified File at the end.

I tried the following code :

						
$handle = fopen ("../inc/Konstants.inc","r+");
while (!feof ($handle)) {
$buffer = fgets($handle,1024);
if (strpos($buffer,"//REPLACE_ME")>0) {
$buffer = str_replace("//REPLACE_ME","\$TEST=\"true\"",$buffer);
			fwrite($handle, $buffer);
			break;
		}
}
fclose ($handle);

With this code the Line doesn't gets replaced - the new content which should replace the old line simply was written to the end of my file ...

I hope someone could help me with this.
Thanks in advance

Hotkey

[crosbystillsnas]

try to script something like the following.

1. read the textfile to an array '$haystack'
2. replace the '$needle' in the array '$haystack'
3. delete the text-file
4. re-make the text file and write the '$haystack' to it

[Hotkey]

Yeah, i solved the Problem this way before - but i thought there might is a much smarter way to realise my goal.

Anyway : Thanks for the answer !

-> resolved