Need help badly in php file(); function

Question

i have created a function which checks for username if it is present in users.txt (where each name is in a new line) file or not
but the if condition $name == $userid isn't giving true value even for identical names.

<?php
//Check if user exists or not...
$user = $_GET['userid'];
$flag = $_GET['flag'];
if($flag=='true'){checkuser($user);}
function checkuser($userid){
echo 'chk user started with name '.$userid.'<br />';
//echo 'check user function started';
$userlist = file("users/users.txt");
foreach ($userlist as $name) {
//getting problem in below line...
if ($name == $userid) {
if($flag!=='true'){return true;}
else {
echo "true";
//break;
}
}
else {echo 'user not '.$name.' but '.$userid.'<br /> ';}
}
}
?>

any help would be really appreciated
thanks

Answer 1

Have you verified the contents of $userlist, did the file("users/users.txt"); succeeded, that the file exists and accessible? try to var_dump($userlist) to see its contents and maybe post the contents here, in general string comparison with == is sufficient (cmiiw)

Answer 2

Shouldn't it be $user == $name

Answer 3

Aman Kumar,
I'm glad you found the solution, IIRC trim() is used to crop whitespace (I guess you know that already) maybe there were whitespace in the names that prevents the comparison to work smoothly in the first place.

Good job! and Thank you : )

Answer 4

Ipang the contents are verified, around 8 names each in a new line.
Btw this problem is sorted out now, got to do trim() don't know for what

Answer 5

Ipang i am still confused how that worked, as my files doesn't contain any white spaces and the line breaks or carriage return are already removed by the file() function as it reads each line into an array

Answer 6

Ipang i need some help in this problem too, already used trim but got nothing

https://www.sololearn.com/Discuss/1324081/?ref=app

Answer 7

Toni Isotalo stop spamming , read the code first, if u understand then give feedback, don’t bother with up-votes! thanks