有没有办法在运行composer install时禁用"不明确的类解析"警告？
我使用一个包，该包在不同的文件夹中具有相同名称(和命名空间(的类。
我知道这个错误，但事实并非如此，因为这些类实际上在供应商中是两次。我对此无能为力。
我也知道 --no-autoloader 标志，它当然不会抛出警告，而只是因为它跳过了自动加载器的生成。
与其从vendor目录中删除文件(应该避免(，不如将具有不明确类的文件/文件添加到composer.json exclude-from-classmap部分：
"autoload": {
...
"exclude-from-classmap": [
"vendor/somevendor/somepackage/directory/with/ambiguous/classes/",
"vendor/somevendor/somepackage/src/AmbiguousClass.php"
]
},
然后，Composer 将在类映射生成期间忽略这些文件。
找到了一个解决方案，尽管它不是那么明显。在这里写过。
使用 PayPal/merchant-sdk-php composer 包并运行 composer install 或 composer update时，您会收到许多警告消息，如下所示：
...
Writing lock file
Generating autoload files
Warning: Ambiguous class resolution, "SetDataRequestType" was found in both "/project/vendor/paypal/merchant-sdk-php/lib/services/PayPalAPIInterfaceService/PayPalAPIInterfaceService.php" and "/project/vendor/paypal/merchant-sdk-php/lib/PayPalAPIInterfaceService/SetDataRequestType.php", the first will be used.
Warning: Ambiguous class resolution, "MerchantPullPaymentType" was found in both "/project/vendor/paypal/merchant-sdk-php/lib/services/PayPalAPIInterfaceService/PayPalAPIInterfaceService.php" and "/project/vendor/paypal/merchant-sdk-php/lib/PayPalAPIInterfaceService/MerchantPullPaymentType.php", the first will be used.
Warning: Ambiguous class resolution, "InitiateRecoupReq" was found in both "/project/vendor/paypal/merchant-sdk-php/lib/services/PayPalAPIInterfaceService/PayPalAPIInterfaceService.php" and "/project/vendor/paypal/merchant-sdk-php/lib/PayPalAPIInterfaceService/InitiateRecoupReq.php", the first will be used.
Warning: Ambiguous class resolution, "CreateBillingAgreementResponseType" was found in both "/project/vendor/paypal/merchant-sdk-php/lib/services/PayPalAPIInterfaceService/PayPalAPIInterfaceService.php" and "/project/vendor/paypal/merchant-sdk-php/lib/PayPalAPIInterfaceService/CreateBillingAgreementResponseType.php", the first will be used.
Warning: Ambiguous class resolution, "MeasureType" was found in both "/project/vendor/paypal/merchant-sdk-php/lib/services/PayPalAPIInterfaceService/PayPalAPIInterfaceService.php" and "/project/vendor/paypal/merchant-sdk-php/lib/PayPalAPIInterfaceService/MeasureType.php", the first will be used.
Warning: Ambiguous class resolution, "BusinessInfoType" was found in both "/project/vendor/paypal/merchant-sdk-php/lib/services/PayPalAPIInterfaceService/PayPalAPIInterfaceService.php" and "/project/vendor/paypal/merchant-sdk-php/lib/PayPalAPIInterfaceService/BusinessInfoType.php", the first will be used.
Warning: Ambiguous class resolution, "ButtonSearchResultType" was found in both "/project/vendor/paypal/merchant-sdk-php/lib/services/PayPalAPIInterfaceService/PayPalAPIInterfaceService.php" and "/project/vendor/paypal/merchant-sdk-php/lib/PayPalAPIInterfaceService/ButtonSearchResultType.php", the first will be used.
Warning: Ambiguous class resolution, "SetAuthFlowParamReq" was found in both "/project/vendor/paypal/merchant-sdk-php/lib/services/PayPalAPIInterfaceService/PayPalAPIInterfaceService.php" and "/project/vendor/paypal/merchant-sdk-php/lib/PayPalAPIInterfaceService/SetAuthFlowParamReq.php", the first will be used.
...
# Many more lines
Github上已经有一个针对此问题的错误票，但它似乎没有以高优先级处理(因为它于2014年7月31日开放(。
搜索了一段时间后，我找到了问题的根源，它被称为PPAutoloader和PayPalAPIInterfaceService。API的每个类都被复制到PayPalAPIInterfaceService中。它用于示例(作为软件包的一部分(，如果没有供应商/自动加载可用.php则与 PPAutoloader 一起加载。但是这个内部逻辑(必须调用自动加载器(与"作曲家自动加载器生成过程"无关，该过程贯穿所有文件夹并构建自己的配置。
那么解决方案是什么？
无法从自动加载器生成过程中排除文件夹(位于供应商文件夹中(。当然，您可以使用 --no-autoloader 标志运行作曲家。但是，您需要自己处理自动加载，这对于"仅"产生警告的问题来说有点激烈。
在这种情况下，有一种更简单的方法。由于此类仅与示例相关(系统中未使用(，因此我可以简单地删除该文件。
为此，我使用了 composer.json 的脚本部分和预自动加载转储命令事件(在自动加载器生成过程之前触发(。该命令将删除包含PayPalAPIInterfaceService的服务文件夹。
"scripts": {
"pre-autoload-dump": [
"rm -rf vendor/paypal/merchant-sdk-php/lib/services"
]
},
删除供应商目录并运行composer install为我消除了错误。