Php登录/注册数据存储在txt中

Question

I'm trying to make a simple login/reg, but the login doesn't work, only with the last line of my txt file, probably because of the other lines contain the ' ' on the end of every line, but it worked before, I don't know what went wrong... What do I have to do to make it work? Here's my code:

login.php:

<?php
if(isset($_POST["name"]) && isset($_POST["password"])){
    $file = fopen('data.txt', 'r');
    $good=false;
    while(!feof($file)){
        $line = fgets($file);
        $array = explode(";",$line);
        if($array[0]==$_POST["name"] && $array[1]==$_POST["password"]){
            $good=true;
            break;
        }
    }

    if($good){
        $message="Welcome";
    }else{
        $message="Try again";
    }
    include 'message.html';
fclose($file);
}else{
    include 'login.html';
}
?>

reg.php:

<?php
if(isset($_POST["name"]) && isset($_POST["password"])){
    $f=fopen("data.txt","a");
    fputs($f,$_POST["name"].";".$_POST["password"]."
");
    fclose($f);
}else{
    include 'reg.html';
}
?>

And this is how the data.txt looks like:

Viktor;1234
Eve;12345
Cathlin;12356

Answer 1

Use trim() to strip away whitespaces from the beginning and end of the strings. http://php.net/manual/en/function.trim.php

while(!feof($file)){
    $line = fgets($file);

    list($user, $pass) = explode(';', $line);

    if(trim($user) == $_POST['name'] && trim($pass) == $_POST['password']){
        $good=true;
        break;
    }
}