creating directory problem

[salmanjoo]

hi guys
how r u all
problem in this code

$userdir=$username;//its the name of directory
$dir="..\\";//path of directory where it will create
mkdir('$dir.$userdir', 0700);

so in the where i m making the directory to combine path and directory name
so its not working means directory is not creating

plz reply me soon

[teknomage1]

change your backslashes(\\) to normal slashes(/).