Php calls html files

Required, but use include_once, include, require_once (& lt ;? Phpinclude_once("head.htm & php to call html files is a problem

Statement, but use include_once, include, require_once
( )
An error occurred while calling other commands. the error message is as follows:


Warning: main(head.html) [function. main]: failed to open stream: No such file or directory in F: \ www \ temp \ limit. php on line 16

Warning: main () [function. include]: Failed opening 'head.html 'for permission Sion (include_path = '.; c: \ php5 \ pear ') in F: \ www \ temp \ limit. php on line 16

Could you give me some advice?

------ Solution --------------------
Do you have a head.html? But what you wrote is head.htm.
Check if this is the reason.