note 57069 added to function.utf8-decode

JF Sebastian's regex is almost perfect as far as I'm concerned. I found one error (it failed section 5.3 "Other illegal code positions" from http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt) which I corrected as follows: ^([\\x00-\\x7f]| [\\xc2-\\xdf][\\x80-\\xbf]| \\xe0[\\xa0-\\xbf][\\x80-\\xbf]| [\\xe1-\\xec][\\x80-\\xbf]{2}| \\xed[\\x80-\\x9f][\\x80-\\xbf]| \\xef[\\x80-\\xbf][\\x80-\\xbc]| \\xee[\\x80-\\xbf]{2}| \\xf0[\\x90-\\xbf][\\x80-\\xbf]{2}| [\\xf1-\\xf3][\\x80-\\xbf]{3}| \\xf4[\\x80-\\x8f][\\x80-\\xbf]{2})*$ (Again, concatenate to one single line to make it work) ---- Manual Page -- http://www.php.net/manual/en/function.utf8-decode.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+57069 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+57069&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+57069&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+57069&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+57069&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+57069&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+57069&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+57069&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+57069&report=yes Search -- http://master.php.net/manage/user-notes.php