How can the logic in the PHP script be improved to achieve the desired outcome?

Issue: The current PHP script is using the assignment operator "=" instead of the comparison operator "==" in the if statement, which is causing the condition to always evaluate to true. To achieve the desired outcome, we need to use the comparison operator "==" to check if the user input matches the predefined value. 

// Incorrect logic
$user_input = $_POST['user_input'];

if($user_input = "hello") {
    echo "Welcome!";
} else {
    echo "Access denied";
}
```

```php
// Corrected logic
$user_input = $_POST['user_input'];

if($user_input == "hello") {
    echo "Welcome!";
} else {
    echo "Access denied";
}

Keywords

PHP script optimization logic improvement desired outcome error handling

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