I already read vim tip about online-refer to function of PHP. http://www.vim.org/tips/tip.php?tip_id=598 It said: ========================================== set keywordprg=a_script
What it does: default, when you ar with the cursor on a WORD and press K (SHIFT+k) in `command mode', the vim will run 'man WORD'. If you set keywordprg=a_script, the vim will run `a_script WORD' So I have set keywordprg=/home/marcel/php_doc and php_doc looks like: ####### #!/usr/bin/bash links http://www.php.net/$1 ####### And now I have the online help ========================================== This worked for me in FC5 and FreeBSD 6.1. How about WindowsXP How can I refer PHP online function in WindowsXP. Thanks in advanced