但是需要注意少数无法向后兼容的修改，PHP手册(请参阅参考资料)中对这些进行了记录。

However, you need to watch out for a few backward-incompatible changes, which are documented in the PHP manual (see Resources).

youdao

但是需要注意少数无法向后兼容的修改，PHP手册(请参阅参考资料)中对这些进行了记录。

However, you need to watch out for a few backward-incompatible changes, which are documented in the PHP manual (see Resources).

youdao