To prevent anyone from including your include-files from any other web-location add the first code to the include-file (tobe_included.inc). The next code should be inserted in the target-file, the one that uses the include. It adds some additional security next to, for exemple .htaccess
<? error_reporting(0); $path1=$_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI']; if($path1==$path2){ echo"Location matches! File is included.";//testmessage //here your code that is to be included } else { echo"<html><head><META HTTP-EQUIV=\"refresh\" CONTENT=\"0; url=http://www.codewalkers.com\"><title></title></head><body></body></html>";//errormessage or relocation exit(); } ?>
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