How to remove a Byte Order Mark
A byte order mark is supposed to begin a unicode plain text file. You can read about this at: http://msdn2.microsoft.com/en-us/library/ms776429%28VS.85%29.aspx »
I ran into this while trying to parse an RSS feed. I believe xml_parse_insto_struct() was throwing the error. It can actually through you off, because you can't readily see the byte order mark and the php errors don't give you a hint of the problem.
I found this nice function on http://docs.php.net » that will remove the byte order mark. There's also a function to add a byte order mark.
Remove Byte Order Mark
<?php
function removeBOM($str="")
{
if(substr($str,0,3) == pack("CCC",0xef,0xbb,0xbf))
{
$str=substr($str,3);
}
return $str;
}
?>
function removeBOM($str="")
{
if(substr($str,0,3) == pack("CCC",0xef,0xbb,0xbf))
{
$str=substr($str,3);
}
return $str;
}
?>
Write UTF-8 file with byte order mark
<?php
function writeUTF8File($filename,$content) {
$dhandle=fopen($filename,"w");
# Now UTF-8 - Add byte order mark
fwrite($dhandle, pack("CCC",0xef,0xbb,0xbf));
fwrite($dhandle,$content);
fclose($dhandle);
}
?>
function writeUTF8File($filename,$content) {
$dhandle=fopen($filename,"w");
# Now UTF-8 - Add byte order mark
fwrite($dhandle, pack("CCC",0xef,0xbb,0xbf));
fwrite($dhandle,$content);
fclose($dhandle);
}
?>