system('mkdir -pv /root/test &> /dev/null ');
mkdir("/root/test",0700);
system('mkdir -pv /root/test &> /dev/null ');
mkdir("/root/test",0700);
php's mkdir and the terminal's mkdir
are definitely the same thing in theory, but PHP must have done it
<code>多个系统的兼容，以及给了一些默认值，权限等等。</code>
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
