Jack Maessen Jack Maessen - 11 months ago 29
PHP Question

how to add value in txt file with php

I want to add a value (not overwrite!) to a txt file with


This is what i have so far:

$fileUserId = fopen("fileUserId.txt", "w") or die("Unable to open file!");
$UserIdtxt = $UserID."||";
file_put_contents("fileUserId.txt", $UserIdtxt, FILE_APPEND);

is an integer, like 1, 2, 3 etc.

So when the the UserID is 1, the fileUserId.txt looks like this:


When there is another user with ID 2,
the fileUserId.txt should look like this:


But he overwrites the file so it becomes this:


What i am doing wrong?


Remove the fopen and fclose line and you are fine. file_put_contents does this internally. And fopen("fileUserId.txt", "w") clears the file.


'w' Open for writing only; place the file pointer at the beginning of the file and truncate the file to zero length. If the file does not exist, attempt to create it.