mkdir中的变量？

Question

I want to create a subfolder inside mp3 with the name of $ts (the current timestamp) but php doesn't really allow me to do that.

This is my code:

$ts = time();
mkdir('\xampp\htdocs\mp3\$ts', 0777, true);

I have already tried:

$ts = time();
mkdir('\xampp\htdocs\mp3\'.$ts.'', 0777, true);

Answer 1

You are escaping the ' accidentally:

mkdir('\\xampp\\htdocs\\mp3\\'.$ts, 0777, true);

You can also use double quotes:

mkdir("\\xampp\\htdocs\\mp3\\{$ts}", 0777, true);