password_hash()?

<div class="active tab-pane" id="instellingen">
	<?php if (!empty($_SESSION['updateerror'])) {?><p><?php echo $_SESSION['updateerror']; unset($_SESSION['updateerror']); ?></p><?php }?>
	<?php if (!empty($_SESSION['updatesucces'])) {?><p><?php echo $_SESSION['updatesucces']; unset($_SESSION['updatesucces']); ?></p><?php }?>
	<form action="/paneel/pages/updatesettings.php" method="POST" class="form-horizontal">
		<div class="form-group">
			<label for="inputName" class="col-sm-2 control-label">Gebruikersnaam</label>

			<div class="col-sm-10">
				<input type="text" disabled class="form-control" id="inputName" placeholder="<?=$gebruikersnaam?>">
			</div>
		</div>
		<div class="form-group">
			<label for="inputEmail" class="col-sm-2 control-label">Emailadres</label>

			<div class="col-sm-10">
				<input type="email" name="email"  class="form-control" id="inputEmail" value="<?=$getuseremail?>">
			</div>
		</div>
		<div class="form-group">
			<label for="inputName" class="col-sm-2 control-label">Wachtwoord</label>

			<div class="col-sm-10">
				<input type="password" class="form-control" name="password" id="inputPass" placeholder="Uw huidige wachtwoord">
			</div>
		</div>
		<div class="form-group">
			<label for="inputExperience" class="col-sm-2 control-label">Beschrijving</label>

			<div class="col-sm-10">
				<textarea class="form-control" maxlength="100" name="beschrijving" id="inputBeschrijving" placeholder="Uw persoonlijke beschrijving."></textarea>
			</div>
		</div>
		<div class="form-group">
			<div class="col-sm-offset-2 col-sm-10">
				<button type="submit" name="update" class="btn btn-primary">Update mijn gegevens</button>
			</div>
		</div>
	</form>
</div>

//APART BESTAND
<?php
	if (isset($_POST['update'])) {
		$username = $_SESSION['username'];
		$email = $mysqli->real_escape_string($_POST['email']);
		$password = $_POST['password'];
		$beschrijving = $_POST['beschrijving'];

		$prefix = $mysqli->real_escape_string($_CONFIG['prefix']);
		$table = $prefix.'users';
		$result = $mysqli->query("SELECT * FROM `$table` WHERE `username`='$username'");
		if(FALSE === $result) {
			exit();
		} else {
			$rows = $result->num_rows;
			if (password_verify($password, $row['password'])) {
				$result = $mysqli->query("UPDATE FROM `$table` SET `email`='$email' AND `beschrijving`='$beschrijving' WHERE `username`='$username'");
				$_SESSION['updatesucces'] = "Uw gegevens zijn aangepast.";
				header('Location: /paneel/profiel/'.$_SESSION['username'].'');
				exit();
			} else {
				$_SESSION['updateerror'] = "De wachtwoorden komen niet overeen.";
				header('Location: /paneel/profiel/'.$_SESSION['username'].'');
				exit();
			}
		}
	} else {
		$_SESSION['updateerror'] = "De wachtwoorden komen niet overeen.";
		header('Location: /paneel/profiel/'.$_SESSION['username'].'');
		exit();
?>