徹底した分析と事例分析: PHP の 7 つのコード標準原則

function calculateTotalPrice($price, $quantity) {
    return $price * $quantity;
}

function printUserInfo($user) {
    echo "姓名: " . $user['name'] . "
";
    echo "年龄: " . $user['age'] . "
";
    echo "性别: " . $user['gender'] . "
";
}

/**
 * 计算总价
 *
 * @param int $price 单价
 * @param int $quantity 数量
 * @return int 总价
 */
function calculateTotalPrice($price, $quantity) {
    return $price * $quantity;
}

function checkUserPermission($user) {
    if ($user['isAdmin'] == true) {
        return true;
    } else {
        return false;
    }
}

try {
    $result = 1 / $number;
    echo "计算结果：" . $result;
} catch (Exception $e) {
    echo "除法运算异常：" . $e->getMessage();
}

class Database {
    public function connect() {
        // 连接数据库的代码
    }
}

class UserRepository {
    private $db;

    public function __construct(Database $db) {
        $this->db = $db;
    }

    public function getUser($id) {
        // 获取用户信息的代码
    }
}

function divide($dividend, $divisor) {
    if ($divisor == 0) {
        throw new Exception("除数不能为0");
    }

    return $dividend / $divisor;
}

try {
    $result = divide(10, 0);
    echo "计算结果：" . $result;
} catch (Exception $e) {
    echo "除法运算异常：" . $e->getMessage();
}