php - 我需要一些帮助来优化读取 php 类中的注释的代码

Question

我用一个静态方法编写了这个类，该方法读取注释并将它们转换为一个数组。所以，这段代码：

/**
 * @MyAnnotation(attr1=value,attr2=value);
 */
class MyClass
{

    public static function readMyAnnotation()
    {
        $classComment = (new ReflectionClass(get_class()))->getDocComment();
        $comments = explode("\n", $classComment);
        foreach ($comments as $item) {
            if(strpos($item, "@")) {
                $comment = explode("@", $item);
                $annotation = explode(")", $comment[1])[0];
                $annotationName = explode("(", $annotation)[0];
                $annotationValue = explode("(", $annotation)[1];
                $annotationParams = explode(",", $annotationValue);
                $params = [];
                foreach ($annotationParams as $item) {
                    $params[explode("=", $item)[0]] = explode("=", $item)[1];
                }
                print_r([$annotationName => $params]);
            }
        }
    }

}

MyClass::readMyAnnotation();

将输出：

Array ( [MyAnnotation] => Array ( [attr1] => value [attr2] => value ) );

有人可以帮助我使用正则表达式优化此代码吗？我无法用正则表达式编写好的代码。我的代码工作正常，但我不喜欢它！

/**
 * @MyAnnotation(attr1=value,attr2=value);
 */
class MyClass
{

    public static function readMyAnnotation()
    {
        $classComment = (new ReflectionClass(get_class()))->getDocComment();
        $comments = explode("\n", $classComment);
        foreach ($comments as $item) {
            if(strpos($item, "@")) {
                /* ?????????????? */
                print_r([$annotationName => $params]);
            }
        }
    }

}

Answer 1

您可以使用 php 函数preg_match，它将匹配的子字符串存储在括号(.*)中$match_name[1]：

preg_match("/\@(.*)\(/",$item,$match_name);
$annotationName = $match_name[1];
preg_match("/\((.*)\)/",$item,$match_values);
$values = explode(",",$match_values[1]);
foreach ($values as $value) {
  $exploded = explode("=", $value);
  $params[$exploded[0]] = $exploded[1];
}