PHP completion

[Jimit Modi]

I used the following method for enabling Php function completion. But I am unable to find out with which command completion will work. 

Till now I have tried following

M - /

ESC TAB

C - a e

But nothing seems to work.

> Configure this setting with either M-x customize-variable RET php-completion-file RET, or by setting its value in your Emacs initialization file (~/.emacs).
> To create a file that can be set for php-completion-file, create with the following shell commands with the HTML version of the PHP manual installed at /usr/share/doc/php-manual/en/html.
>
>      $ cd /usr/share/doc/php-manual/en/html
>      $ ls -1 function*.html \
>        | sed -e 's/^function\.\([-a-zA-Z_0-9]*\)\.html/\1/' \
>        | tr - _ \
>        > ~/.emacs.d/php/php-completion-file
>
> In larger projects or with other specific needs, conventional methods of setting these and other variables may be inadequate. As of 2008, third-party packages do exist for Emacs to configure Emacs settings on groups of files or for directory trees, including dirvars.el.
>
> M-TAB
> ESC TAB
> C-[ TABComplete function name at point (php-complete-function).
>  C-.Show in the minibuffer the argument list for the current function at point (php-show-arglist). The argument list is generated by finding and jumping to the respective function's location specified in the tag file (see above). The argument list is then read and printed to the minibuffer.--

Thanks In Advance.

Jim(y || it)