PHP 記述仕様の最適化: プロジェクトの読みやすさと保守性を向上させます。

// 不推荐
$x = 5;
$y = 10;
$z = add($x, $y);

function add($a, $b) {
   return $a + $b;
}

// 推荐
$number1 = 5;
$number2 = 10;
$sum = calculateSum($number1, $number2);

function calculateSum($num1, $num2) {
   return $num1 + $num2;
}

// 获取用户信息
function getUserInfo($userId) {
   // 根据用户ID查询用户信息
   $userInfo = getUserData($userId);
   
   // 返回用户信息
   return $userInfo;
}

// 不推荐
$globalVar = 10;

function add($num) {
   global $globalVar;
   return $num + $globalVar;
}

// 推荐
class Calculator {
   private $globalVar;

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

   public function add($num) {
      return $num + $this->globalVar;
   }
}

$calculator = new Calculator(10);
$sum = $calculator->add(5);

// 不推荐
function calculateSum($num1,$num2){
$result=$num1+$num2;
return$result;
}

// 推荐
function calculateSum($num1, $num2) {
   $result = $num1 + $num2;
   return $result;
}

function divide($num1, $num2) {
   if ($num2 == 0) {
      throw new Exception('Divisor cannot be zero.');
   }
   return $num1 / $num2;
}

try {
   $result = divide(10, 0);
} catch (Exception $e) {
   echo 'Error: ' . $e->getMessage();
}