removing a text file entry

pouncer

in the rem.php file I have this..

<?php 
$filename = 'testfile.txt';   

$somecontent = $_GET['data'] . "\n";   

$file_data = file_get_contents($filename);   

$file_data = str_replace($somecontent, "", $file_data);   

$file = fopen($filename, "w"); 
fputs($file, $file_data);   

fclose($file); 

?>

so for e.g, i do..

www.mysitewhatever.com/rem.php?data=cool

that should remove the word 'cool' from the file testfile.txt

but it only works about 50% of the time, why is this?

Installer

It could be an uppercase/lowercase problem, or it could be that not all instances of "cool" are followed immediately by a newline (like maybe a space or carriage return in between).

strtolower()
strtoupper()

pouncer

but when i write to the text file i put a \n at the end of the word

its not uppercase/lowercase either because all the entries i write to the text file in lowe case

Swardh

it desn't work because you tell the script to search for "cool\n" (cool with a linebreak). And second, str_replace is CaSe SeNsItIvE, so if the word "cool" is spelled "Cool", it wont be replaced. To get around that, use regular expressions instead.

To really make sure that all "cool" words will be replaced, simply change...

$somecontent = $_GET['data'] . "\n";

to this;

$somecontent = $_GET['data'];

And change this...

$file_data = str_replace($somecontent, "", $file_data);

To this

$file_data = preg_replace("/$somecontent/is", "", $file_data);