Replacing Text In Textfile

endlyss

Hello

I'm having a big problem trying to replace a string (update) a text file.

Username and Password are written to a text file. I want to update the file when user changes their password.

The following code works fine with str_replace() and eregi_replace() except that when writing to the file it eliminates all other entries, or in append mode it simply adds a line leaving the old line intact.

I have also tried to explode() the file into an array but only succeed in crashing my browser during the loops and get a "Resource id #3" notice (what does that mean? I get that from time to time but cannot find a suitable answer).

Anyway, thank you for your help.

Richard

<?php

$filename = "cust_info.txt";

$file = fopen($filename,"a");

$username = "monkey";
$oldpassword = "banana";
$newpassword = "yowl";

$string = "Username = $username Password = $oldpassword";
$pattern = "Password = $oldpassword";
$replacement = "Password = $newpassword";

$newpattern = str_replace($pattern,$replacement,$string);

echo $newpattern;

fwrite($file, "$newpattern\n\n");
fclose($file);

nemonoman

You have to load the entire text file into a variable, find / change the username.password in the variable, and then fwrite the entire variable as a replacement of the original file.

endlyss

Thanks nemonoman

How do I get the file into a variable? and how do I access the text for replacement?

Will it be in array form? For some reason when I try to access text from arrays I get what seems to be an endlyss loop or something.

Richard

MaxPower

I have a similar situation but I have not yet started to code it.. I am still trying to find the simplest way around it.

I am using htaccess and I want to do the same as endlyss with my htpasswd file.

My initial thought was to read each line in to an array unless it matched the line I wanted to change. I would then add the new line at the end and write back to the htpasswd file so there would only be one instance of the username and password.

Is this the only way?????

TIA