1. <?php
    3. namespace console\component\reflect;
    5. use ReflectionClass;
    6. use Exception;
    7. use ReflectionException;
    9. trait Reflect
    10. {
    11.     /**
    12.      * 反射调用方法
    13.      *
    14.      * 示例：
    15.      * $clsName = FixOrder::class;
    16.      * $funcName = 'receivedNotBuyPicc';
    17.      * $parameter = ['order_id' => 123456, 'a' => 222];
    18.      * list($code, $ret) = $this->reflectCall($clsName, $funcName, $parameter);
    19.      * if ($code === false) {
    20.      *      throw new Exception($ret);
    21.      * }
    22.      * @param string $clsName
    23.      * @param string $funcName
    24.      * @param $parameter
    25.      * @return array
    26.      */
    27.     public function reflectCall(string $clsName, string $funcName, $parameter)
    28.     {
    29.         try {
    30.             // 类
    31.             try {
    32.                 $reflection = new ReflectionClass($clsName);
    33.             } catch (ReflectionException $e) {
    34.                 throw new Exception('类不存在');
    35.             }
    37.             // 查看是否可以实例化
    38.             if (!$reflection->isInstantiable()) {
    39.                 throw new Exception('类不可实例化');
    40.             }
    42.             // 构造方法
    43.             $constructor = $reflection->getConstructor();
    44.             if ($constructor !== null) {
    45.                 foreach ($constructor->getParameters() as $param) {
    46.                     if (!$param->isDefaultValueAvailable()) {
    47.                         throw new Exception('需要处理构造方法');
    48.                     }
    49.                 }
    50.             }
    52.             // 目标方法
    53.             try {
    54.                 $method = $reflection->getMethod($funcName);
    55.             } catch (ReflectionException $e) {
    56.                 throw new Exception('方法不存在');
    57.             }
    59.             // 方法基本情况
    60.             if (!$method->isPublic() || $method->isAbstract()) {
    61.                 throw new Exception('方法不可调用');
    62.             }
    64.             // 方法参数
    65.             $args = [];
    66.             if ($funcParams = $method->getParameters()) {
    67.                 foreach ($funcParams as $param) {
    68.                     if (!isset($parameter[$param->name])) {
    69.                         throw new Exception('缺少参数' . $param->name);
    70.                     }
    71.                     $args[] = $parameter[$param->name];
    72.                 }
    73.             }
    75.             $cls = $reflection->newInstance();
    76.             $ret = $method->invokeArgs($cls, $args);
    77.             return [true, $ret];
    78.         } catch (Exception $e) {
    79.             return [false, $e->getMessage()];
    80.         }
    81.     }
    82. }