All I want to do is get the current directory it's running from and chdir to it

Anyone know the lines to do it?

I know getcwd() will get the dir, but how to I connect that with chdir()

Basically I have a script that I usually add a chdir function to manually, but I want it to be automated (so it works regarldess of which dir the script is in). I need the script to find out what directory it's in and pass that info along to chdir

Let me preface this response by saying that I don't know PHP
but if your script is running on a Linux box you can use readlink
(The system call) on /proc/self/exe this will give you the location
of your script eg /home/user/bin/myscript.php. Cut off the file
name and you have your directory to chdir into. I don't know
how PHP deals with system calls so I'm sorry I can't be of more
help.

Edit:
I may just be confused about what you want to do though
because you don't need to chdir into cwd because by
definition cwd is your current working directory. The directory
that you launch the script from and not the directory that the
script is in (unless of course the your cwd is the directory the
script is in).