How to increase and decrease users in .htpasswd online in php

How to add or delete users in .htpasswd online in php

include("./class.Htpasswd.php3");

/* Please modify the path of this .htpasswd file
*/​
$htpasswdfile = "/usr2/amitc/.htpasswd";


// Please do not modify this line
echo '

';
?>

Username:
PassWord:
Verify Password Add new user Delete user Change password

if(!isset($operation)) {
}
else {
echo "

---

";
echo "You have just performed this operation, please check

---

";
echo "You want to set the user $username and password $password = [$doop]
";
$handle = new Htpasswd($htpasswdfile);

switch ($doop) {
case 'add':
PRint "User
";
$retval = $handle->addUser($username, $password);
if($retval) {
print "User [$username] joined successfully!
";
} else {
print "Failed to join user [$username].
";
}
break;

case 'change':
print 'Change password
';
$retval = $handle->changePass($username, $password);
if($retval) {
print "[$username]'s password was changed successfully.
";
} else {
print "[$username]'s password modification failed.
";
}
break;

case 'delete':
print 'Delete user
';
$retval = $handle->deleteUser($username);
if($retval) {
print "[$username] was deleted.
";
} else {
print "An error occurred while deleting [$username].
";
}
break;

case 'verify':
print 'Code to verify user's password
';
$retval = $handle->verifyUser($username, $password);
if($retval) {
print "[$username] verifies okay with password [$password]
";
} else {
print "Verify Error for [$username] with [$password] (wrong password or user doesn't exist!)
";
}

break;

default:
print 'Do you want to interrupt?
';
}
echo "";
}
?>

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