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<?php $invalid_utf8="\xF5\x80\x80\x80PHP"; $should_be_valid_utf8=iconv("UTF-8","UTF-8//IGNORE",$invalid_utf8); var_dump($should_be_valid_utf8,bin2hex($should_be_valid_utf8),mb_check_encoding($should_be_valid_utf8));
Output for rfc.property-hooks
string(7) "����PHP" string(14) "f5808080504850" bool(false)

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