so I'm fairly new to programming/scripting HTML.
my current project is PHP/HTML, building a website, the HTML templates are prepared but I need to insert PHP and JavaScript to make things work.
Today's issue, I'm creating a registration form for my website (before I create the login and secure pages...)
I found some useful info at w3schools allowing me to copy and modify the below code.
the code was working okay except errors were showing on the page until I fixed them.
I wanted to stack the php into a function so that undefined vars of database handling did not show on page until the function had run and vars had been defined, completely negating any errors from the other php files.
my problem now is that the function either isn't running on click or the values are not being returned to echo for debugging.
perhaps as this is my fist ever PHP page I'm missing something you guys could help with
I have checked w3schools & google for answers but nothing seems to be detailed enough, or the issue isn't the same.
(File Names have been changed and junk such as classes & styles have been removed for readability, external files not included nor required)
//PHP>Register page> php placed before form html
<?php
//define variables
//error var
$usernameErr = $emailErr = $passwordErr = $repeatpassErr = "";
//transferable vars
$username = $email = $password = $repeatpass = "";
//create session manager
function session_reg(){
//Start session registration
session_start();
//require push file
require 'secure-sql.php';
//confirm request method
if($_SERVER['REQUEST_METHOD'] == "POST"){
//confirm fields are populated
if(empty($_POST["username"])) {
//if empty error
$usernameErr = "Name is required";
}else {
//else confirm input and check restrictions
$username = test_input($_POST["username"]);
// check if name only contains letters and whitespace
if (!preg_match("/^[a-zA-Z0-9 ]*$/",$username)) {
$usernameErr = "Only letters and white space allowed";
}
}
//confirm fields are populated
if(empty($_POST["email"])) {
$emailErr = "Email is required";
}else {
$email = test_input($_POST["email"]);
// check if e-mail address is well-formed
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$emailErr = "Invalid email format";
}
}
//confirm fields are populated
if(empty($_POST["password"])){
$passwordErr = "Must enter a password";
}else{
$password = test_input($_POST["password"]);
}
//confirm fields are populated
if(empty($_POST["repeatpass"])){
$repeatpassErr = "Must repeat your password";
}else{
$repeatpass = test_input($_POST["repeatpass"]);
}
}
//compare password and repeat are the same
if ($password === $repeatpass){
//db_quote to secure from injection
$username = db_quote($_POST['username']);
$email = db_quote($_POST['email']);
$password = db_quote($_POST['password']);
//section is a work in progress, shouldn't be required for local debugging
//query db for usernames and emails to avoid dupes
//db_query()
//insert into db
}else{
//or return password error
$passwordErr = "passwords must be the same";
}
}
function test_input($data) {
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
I attempted to use $GLOBALS['varname'] to call the variables from outside the function and return $varname to push it back for echo, but I got no results, no errors.
here is the HTML form so that you know how I'm trying to move vars around.
//PHP> Register Page>After PHP Functions
<h2>Register</h2>
<h6>* Required field<h6>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
<table class='reg-table' style='align-content:center;'>
<tr>
<td>Username:</td>
<td><input size='20' type="text" name="username" value='<?php echo $username;?>'><span>* <?php echo $usernameErr;?></span></td>
</tr>
<tr>
<td>E-mail:</td>
<td><input type="text" name="email" value='<?php echo $email;?>'><span>* <?php echo $emailErr;?></span></td>
</tr>
<tr>
<td>Password:</td>
<td><input pattern=".{5,}" required title="5 characters minimum" type="password" name="password" ><span>* <?php echo $passwordErr;?></span></td>
</tr>
<tr>
<td>Repeat Password:</td>
<td><input type="password" name="repeatpass"><span>* <?php echo $passwordErr;?></span></td>
</tr>
<tr>
<td></td>
<td class="g-recaptcha" required></tr>
</tr>
<tr>
<td></td>
<td><input onclick="session_reg()" type="submit" name="submit" value="Register"></td>
</tr>
</table>
</form>
Finally I'm trying to debug the outputs onto the same page I'm working with. once I'm finished fixing the breaks this section will be commented out or removed.
//debug output
echo "<h3>var outputs</h3>";
echo "<br>";
echo $username;
echo "<br>";
echo $usernameErr;
echo "<br>";
echo $email;
echo "<br>";
echo $emailErr;
echo "<br>";
echo $password;
echo "<br>";
echo $passwordErr;
echo "<br>";
echo "<h3>end debug</h3>";
?>
