help with writing/viewing text

[codeboy89]

i have the following code for taking input data and writing it to a textfile then echoing it to a webpage to view. i do not know why sometimes data is left over from a previous submission and sometimes it clears it. i want it to clear out the textfile and only show the last inputed message when i echo it.

 

$file = "msg.txt";
$read = file_get_contents($file);
$open = fopen($file, "r+");
$lock = flock($open, LOCK_EX);
$add = "$msg";

$add = fwrite($open, "$add");
fclose($open);

 

please help

[kenrbnsn]

Where is $msg coming from?

 

Also, you're using too many variables, just do:

<?php
$file = "msg.txt";
$open = fopen($file, "w");
$lock = flock($open, LOCK_EX);
file_put_contents($msg);
fclose($open);
?>

 

Ken

[codeboy89]

$msg is input text data from the user and i want it posted, but if someone else inputs text data it displays only the new entry. currently it is leaving up the old data also..

[AbraCadaver]

$file = "msg.txt";
file_put_contents($file, $msg);

[AbraCadaver]

$file = "msg.txt";
file_put_contents($file, $msg);

 

Might also use the LOCK_EX flag for file_put_contents() if needed.