Xdebug将在49次函数调用后介入并得到图2(顺便说一句，main的初始调用用于启动程序计数作为第1次调用)。

Xdebug intervenes after 49 function calls and yields Figure 2. (By the way, the initial invocation of main to launch the program counts as the first frame.)

youdao

如果您需要更改规则，那么只要在存储过程中更改一次，而不需要在调用该存储过程的每个应用程序中都进行更改。

If you need to change the rules, you only need to make the change once in the stored procedure, not in every application that calls the stored procedure.

youdao

可以用一个内容处理程序来处理这两种情况，但每次解析器调用处理程序时，都需要进行一次检查，以查看到底是哪一种情况需要被处理。

You can have one content handler that handles both cases, but this requires a check to see which case needs to be handled each time the parser invokes the handler.

youdao