Now I understand how to reverse a string in PHP:
<?php
echo strrev("Hello world!"); // outputs "!dlrow olleH"
?>
However, I have searched high and low and cannot figure out how to do what I want to do. (This is for a class project fyi)
I need to check that the password is the exact reverse of the username. So the user may choose whatever they want, but their password must be the exact reverse in order for them to proceed and log into the page.
EX: username: me Password: em
I do not need to store this in a file, just hard code it into the PHP script and have it check to make sure the one text field is the reverse of the other.
In theory (and I'm really new to this), I was thinking I should do something like this:
<?php
$username = $_POST['username'];
$password = $_POST['password'];
echo ($_POST['password'] === strrev($_POST['username'])) ? 'true' : 'false'; // check that password is reverse of username
?>
However, this is obviously not right (or I wouldn't be here). No matter what I put it, it is allowing the user to go on to the next page.
Full code:
<?php
$username = $_POST['username'];
$password = $_POST['password'];
echo ($_POST['password'] === strrev($_POST['username'])) ? 'true' : 'false'; // check that password is reverse of username
?>
<html>
<head></head>
<body>
<form action="amanot.php" method="post">
<table>
<tr>
<td><label>Username: </label></td>
<td><input type="text" name="username" id="username"/></td>
</tr>
<tr>
<td><label>Password: </label></td>
<td><input type="password" name="password" id="password"/></td>
</tr>
<tr>
<td><label>Submit</label></td>
<td><input type="submit" name="submit" id="submit"/></td>
</tr>
</table>
</form>
</body>
</html>
