只需一张PHP技术牌，高薪职位任你挑选

<?php
// 前端代码
echo "<h1>Hello, PHP Full Stack Developer!</h1>";

// 后端代码
$name = $_GET['name'];
echo "Welcome, " . $name . "!";
?>

<?php
// 定义一个PHP对象
class User {
  private $name;
  private $email;

  public function __construct($name, $email) {
    $this->name = $name;
    $this->email = $email;
  }

  public function getName() {
    return $this->name;
  }

  public function getEmail() {
    return $this->email;
  }
}

// 使用PHP对象
$user = new User("John Doe", "john.doe@example.com");
echo "Name: " . $user->getName() . "<br>";
echo "Email: " . $user->getEmail();
?>

<?php
// 定义一个简单的PHP框架
class Framework {
  private $appName;
  
  public function __construct($appName) {
    $this->appName = $appName;
  }
  
  public function run() {
    echo "Welcome to " . $this->appName . "!";
  }
}

// 使用PHP框架
$framework = new Framework("My Framework");
$framework->run();
?>

<?php
// 使用PHP内置函数过滤用户输入
$userInput = "<script>alert('XSS Attack');</script>";
$filteredInput = htmlspecialchars($userInput);
echo "Filtered Input: " . $filteredInput;
?>