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Crazy HorseFlag for South Africa

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How to echo variables in a page outside of a function

I have an edit form which should be showing users details in a form once they have logged in and want to edit their details. If I use code in the actual page itself I have no problem, but I have put everything in a function and can't use the variables inside the form. How can I do this?

The function:

function updateProfile($link){
	$sql = "SELECT user_firstname, user_lastname, user_email FROM `users` WHERE user_username = '{$_SESSION['username']}'";
		$result = $link->query($sql);
			if($result->num_rows === 1){
				while($row = $result->fetch_assoc()){
					$db_firstname = htmlentities($row['user_firstname']);
					$db_lastname = htmlentities($row['user_lastname']);
					$db_username = htmlentities($_SESSION['username']);
					$db_email = htmlentities($row['user_email']);
					$db_userid = $row['user_id'];

	$message = "";
		if(empty($_POST['user_firstname'])) {
			$message .= "First name required<br>";
		if(empty($_POST['user_lastname'])) {
			$message .= "Last name is required<br>";
		if(empty($_POST['user_username'])) {
			$message .= "Username is required<br>";
		if(empty($_POST['user_email'])) {
			$message .= "Email address required";
		if(!filter_var($_POST['user_email'], FILTER_VALIDATE_EMAIL)) {

			$message .= "Email address invalid";
		if(!empty($_POST['someinput'])) {
				$message .= "Be gone spam bot!";
		if ($message) {
			$message = "<div class='alert alert-danger'><strong>There were errors in your form:<br></strong>" .$message. "</div>";
		} else {
			$user_firstname = $link->real_escape_string($_POST['user_firstname']);
			$user_lastname = $link->real_escape_string($_POST['user_lastname']);
			$user_username = $link->real_escape_string($_POST['user_username']);
			$user_email = $link->real_escape_string($_POST['user_email']);
			$update_profile = "UPDATE `users` SET user_firstname = '$user_firstname', user_lastname = '$user_lastname', user_username = '$user_username', user_email = '$user_email' WHERE user_id = '$db_userid'";
			if($result = $link->query($update_profile) === TRUE){
				$message = "<div class='alert alert-success>User profile updated</div>";
	return $message;

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The form:

<form action="" method="post" enctype="multipart/form-data">
	<div class="form-group">
		<label for="firstname">First name</label>
		<input type="text" class="form-control" name="user_firstname" value="<?php echo $db_firstname;?>"> </div>
	<div class="form-group">
		<label for="lastname">Last Name</label>
		<input type="text" class="form-control" name="user_lastname" value="<?php echo $db_lastname;?>"> </div>
	<div class="form-group">
		<label for="Username">Username</label>
		<input type="text" class="form-control" name="user_username" value="<?php echo $db_username;?>"> </div>
	<div class="form-group">
		<label for="form-group">Email</label>
		<input type="email" class="form-control" name="user_email" value="<?php echo $db_email;?>"> </div>
	<div class="form-group">
		<label for="form-group">Password</label>
		<input type="password" class="form-control" name="user_password"> </div>
	<div class="form-group">
		<label for="form-group">Repeat password</label>
		<input type="password" class="form-control" name="password_repeat"> </div>
	<div class="form-group">
		<input type="text" style="display:none" name="someinput"> </div>
	<div class="form-group">
		<input class="btn btn-primary" type="submit" name="updateprofile" value="Update details"> </div>
		<?php echo updateProfile($link);?>

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Avatar of Mukesh Yadav
Mukesh Yadav
Flag of India image

You can make variables global you want to use in form to echo their values and there is no need of while statement:
$row = $result->fetch_assoc();

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will also work.
You might consider creating an object outside of the function and update it inside the function.  This is a step towards OOP.
Avatar of Crazy Horse


I want to try achieve it without using global as I believe it isn't great to use that.
Avatar of Rob
Flag of Australia image

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That worked a treat, thank you! :)