note 9638 added to ereg_replace

I'm using PHP 4.0.3 and I've found it impossible to use ereg_replace to escape the NUL character in a string. It looks like the strings are cast as C-style strings internally, so a NUL byte becomes the end-of-string marker. echo ereg_replace("a", "A", "ab\x00cd"); result: Ab If you're using ereg_replace with binary data, you have to handle NUL bytes yourself somehow: echo stripslashes(ereg_replace(addslashes("a"), addslashes("A"), addslashes("ab\x00cd"))); result: Abcd http://www.php.net/manual/function.ereg-replace.php