note 94557 added to function.include

I was having problems when HTTP headers were being sent before I was ready. I discovered that this happened only when I was including a file at the top of my script. Since my included file only contained PHP with no whitespace outside the tags, this behavior seemed incorrect. The editor I was using was saving the files in UTF8 format, sometimes including the redundant Byte Order Mark at the beginning of the file. Any Unicode-aware editor would implicitly hide the presence of the BOM from the user, making it hard to notice the problem. However, by using a hex editor I was able to see and remove the three bytes, restoring normal behavior. Moral: Prevent your editor from adding an invisible Unicode Byte Order Mark to the beginning of your source code! ---- Server IP: 69.147.83.197 Probable Submitter: 70.166.115.79 ---- Manual Page -- http://www.php.net/manual/en/function.include.php Edit -- https://master.php.net/note/edit/94557 Del: integrated -- https://master.php.net/note/delete/94557/integrated Del: useless -- https://master.php.net/note/delete/94557/useless Del: bad code -- https://master.php.net/note/delete/94557/bad+code Del: spam -- https://master.php.net/note/delete/94557/spam Del: non-english -- https://master.php.net/note/delete/94557/non-english Del: in docs -- https://master.php.net/note/delete/94557/in+docs Del: other reasons-- https://master.php.net/note/delete/94557 Reject -- https://master.php.net/note/reject/94557 Search -- https://master.php.net/manage/user-notes.php