Here's an example of a vulnerable code in PHP that is susceptible to a reflected XSS attack:

BASH
```
$name = $_GET['name'];
echo "Hello, " . $name;
```

In this example, the `$name` variable is being directly retrieved from the query string of the URL and echoed the user input without any validation or sanitation. An attacker can craft a URL with a malicious payload in the `name` parameter, for example:

PHP
```
http://example.com/?name=<script>alert('XSS Attack')</script>
```

When a victim visits this URL, the malicious script would be executed in the victim's browser, allowing the attacker to potentially steal sensitive information or perform other malicious actions. To prevent this type of attack, it's important to properly validate and sanitize user input before including it in dynamically generated content.

BASH
```
$name = htmlspecialchars($_GET['name']);
echo "Hello, " . $name;
```

In this modified code, the `htmlspecialchars` function is used to encode any special characters, such as `<` and `>`, so that they are displayed as plain text and not interpreted as HTML or JavaScript.
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