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<?php $string = "Zoe\u{0308}"; var_dump($string); echo "\n"; var_dump(substr($string, -1)); var_dump(mb_substr($string, -1)); var_dump(iconv_substr($string, -1)); var_dump(grapheme_substr($string, -1));
Output for rfc.property-hooks, git.master, git.master_jit
string(5) "Zoë" string(1) "�" string(2) "̈" string(2) "̈" string(3) "ë"

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