如何获取教义实体属性的类型

多亏了@Yoshi找到了解决方案。我希望它会有所帮助

use Doctrine'Common'Annotations'AnnotationReader;
$docReader = new AnnotationReader();
$entity = new Entity();
$reflect = new ReflectionClass($entity);
// $fields is an array whihch contain the entity name as the array key and the value as the array value
foreach ($fields as $key => $val)
{
    if (!reflect->hasProperty($key)) {
        var_dump('the entity does not have a such property');
        continue;
    }
    $docInfos = $docReader->getPropertyAnnotations($reflect->getProperty($key));
    if ( $docInfos[0]->type === 'string' ) {
          // convert $value to utf8
    } elseif ( $docInfos[0]->type === 'integer' ) {
          // do something else
    } //....etc
}

虽然很旧，但当我们需要在某些情况下始终将布尔字段设置为 true 的解决方法时，这篇文章非常有用——谢谢 Smarber 和 Yoshi。我们的解决方法检测布尔字段（在本例中为 PATCH），并使用相应的 setter 来传播该值。（当然，如果这不是必需的，那就太好了。

/*
 * @PATCH("/entity/{name}")
 */
public function patchEntityAction(Request $request, $entity)
{
    ...
    $form->handleRequest($request);
    $manager = $this->getDoctrine()->getManager();
    // handle booleans
    $metadata      = $manager->getClassMetadata($bundle_entity);
    $entity_fields = $metadata->getFieldNames();
    foreach ($entity_fields as $field) {
        $type = $metadata->getTypeOfField($field);
        if ($request->request->has("$field") && $type == 'boolean') {
            $setter = 'set' . ucfirst($field);
            $entity->$setter(!!$request->request->get("$field"));
        }
    }
    $manager->persist($entity);
    $manager->flush();
    ...
}

参考： https://api.symfony.com/3.4/Symfony/Component/HttpFoundation/Request.html

您可以使用 gettype

$entity = new Entity();
$reflect = new ReflectionClass($entity);
// $fields is an array whihch contain the entity name as the array key and the value as the array value
foreach ($fields as $key => $val)
{
    if (!reflect->hasProperty($key)) {
        var_dump('the entity does not have a such property');
        continue;
    }
    if ( gettype($key) === "integer" ) {
          // convert $value to utf8
    } elseif ( gettype($key) === "string") {
          // do something else
    } //....etc
}

任何顺序对实体字段几乎没有不同的注释。
注意：此代码不检测相关实体（多对一，一对多等）。

use Doctrine'Common'Annotations'AnnotationReader;
/**
 * @param $entity
 * @param $fieldName
 * @return mixed|null
 */
private function getFieldType($entity, $fieldName)
{
    $annotationReader = new AnnotationReader();
    $refClass = new ReflectionClass($entity);
    $annotations = $annotationReader->getPropertyAnnotations($refClass->getProperty($fieldName));
    if (count($annotations) > 0) {
        foreach ($annotations as $annotation) {
            if (
                $annotation instanceof 'Doctrine'ORM'Mapping'Column
                && property_exists($annotation, 'type')
            ) {
                return $annotation->type;
            }
        }
    }
    return null;
}