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RT, for example, if you pass in an array or structure type variable, it can output all the helper functions like var_dump?
No, just use a debugger, gdb or xcode, vs
sizeof()
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
No, just use a debugger, gdb or xcode, vs
sizeof()