I’m new to PHP and am having trouble with what seems like a relatively simple program. I can’t get my $_POST['Username'] to equal my $temp and therefore never echo'success!'; even if i echo every check and i can physically see that they equal, success never prints. Any help is greatly appreciated <3.
<?php
if(isset($_POST['submit']))
{
if (file_exists('logins.txt'))
{
echo 'The file was found' . '<br>';
$file = fopen('logins.txt', 'r');
while (feof($file) == false)
{
$temp = fgets($file, 20);
if ($temp === $_POST['Username'])
{
echo'success!';
}else
{
echo 'failed' . '<br>';
echo $temp . '<br>';
echo $_POST['Username'] . '<br>';
}
};
fclose($file);
}
}
?>
<HTML>
<body>
<form action="" method="post">
Username
<input type="text" name="Username" size="30" value="">
Password
<input type="text" name="Password" size="30" value="">
<input type="submit" name="submit" value="Login">
</form>
</body>
</HTML>
Picture of the output using a textfile with the letters a – e
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Answer
replace
if ($temp === $_POST['Username'])
with
if (trim($temp) == trim($_POST['Username']))
you probably have some space or something in your file
to better understand what is going on you can try to replace
echo $temp . '<br>'; echo $_POST['Username'] . '<br>';
with
var_dump($temp,$_POST['Username'])