How can one troubleshoot and debug issues related to form values not being passed or assigned correctly in PHP scripts, especially for beginners with limited experience in PHP?

To troubleshoot and debug issues related to form values not being passed or assigned correctly in PHP scripts, beginners can start by checking the form method (POST or GET) and the names of the form input fields to ensure they match the PHP script. They can also use var_dump($_POST) or var_dump($_GET) to inspect the values being passed from the form. Additionally, beginners can use isset() or empty() functions to check if the form values are set and not empty before using them in their PHP script. 

<form method="POST" action="process_form.php">
    <input type="text" name="username">
    <input type="password" name="password">
    <input type="submit" value="Submit">
</form>
```

```php
<?php
if(isset($_POST['username']) && isset($_POST['password'])){
    $username = $_POST['username'];
    $password = $_POST['password'];
    
    // Further processing of form values
}
else{
    echo "Please fill out all fields.";
}
?>

Keywords

PHP debugging form values troubleshooting beginners

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