I wonder if there is a problem for a php file that contains php codes and html form. for example: in the file the first part would be:
<?php ...
?>
<html>...<form action = "current file"> ..... </form>
</html>
The action will refer to the name of this current file.
or do I have to separate the php code in a file with extension .php, and html code in a file with extension .html?
Test it on your own– You can. You can also use PHP inside of a HTML tag, because the PHP is loaded server-side whenever the client sends a request.
Client sends request --> Server gets request and loads up the .php file --> Server loads the php, executes the php, and replaces all php objects with text that it returns, or nothing --> Client gets the file that has been loaded (and edited) via the server
Note: If you combine PHP with HTML, the file needs the extension .php because HTML does not originally support PHP tags.
Here's an example for a php and html form in same file. Ofcourse the file extension needs to be .php
You just need to change 'action="current file"' to 'action=""'
index.php
<?php
if(isset($_POST['submit'])) {
// The things that needs to be checked and executed WHEN submitted.
$email = htmlspecialchars($_POST['Email']);
$email = strip_tags($email);
$password = htmlspecialchars($_POST['Password']);
$password = strip_tags($password);
//SQL STUFF
if ($email === $row['email'] && $password === $row['password']) {
$_SESSION['uuid'] = $row['uuid'];
header("Location: profile.php?id=". $row['uuid'] ."");
}
}
?>
<!DOCTYPE html>
<html>
<head>
<title>My Form</title>
</head>
<body>
<form action="" method="POST">
<input type="email" name="Email" placeholder="Email..." required>
<input type="password" name="Password" placeholder="Password..." required>
<input type="submit" name="submit" value="Submit">
</form>
</body>
</html>