클래스를 사용하여 PHP에서 데이터 유형을 관리하고 조작하는 방법

class StringManager {
    private $stringData;
    
    public function __construct($stringData) {
        $this->stringData = $stringData;
    }
    
    public function getStringData() {
        return $this->stringData;
    }
    
    public function setStringData($newStringData) {
        $this->stringData = $newStringData;
    }
    
    public function stringLength() {
        return strlen($this->stringData);
    }
    
    public function stringToUpper() {
        return strtoupper($this->stringData);
    }
    
    public function stringToLower() {
        return strtolower($this->stringData);
    }
}

// 使用StringManager类进行字符串操作
$stringManager = new StringManager("Hello World!");

echo $stringManager->getStringData();  // 输出：Hello World!
echo $stringManager->stringLength();   // 输出：12
echo $stringManager->stringToUpper();  // 输出：HELLO WORLD!
echo $stringManager->stringToLower();  // 输出：hello world!

class ArrayManager {
    private $arrayData;
    
    public function __construct($arrayData) {
        $this->arrayData = $arrayData;
    }
    
    public function getArrayData() {
        return $this->arrayData;
    }
    
    public function setArrayData($newArrayData) {
        $this->arrayData = $newArrayData;
    }
    
    public function arrayLength() {
        return count($this->arrayData);
    }
    
    public function arraySort() {
        sort($this->arrayData);
        return $this->arrayData;
    }
    
    public function arrayReverse() {
        return array_reverse($this->arrayData);
    }
}

// 使用ArrayManager类进行数组操作
$arrayManager = new ArrayManager([4, 2, 3, 1, 5]);

echo implode(", ", $arrayManager->getArrayData());  // 输出：4, 2, 3, 1, 5
echo $arrayManager->arrayLength();                  // 输出：5
echo implode(", ", $arrayManager->arraySort());     // 输出：1, 2, 3, 4, 5
echo implode(", ", $arrayManager->arrayReverse());  // 输出：5, 4, 3, 2, 1