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<?php // expecting "false" var_dump(grapheme_stripos("abcdef", "\u{34F}")); // expecting "3" var_dump(grapheme_stripos("abc\u{34F}def", "\u{34F}")); // seems OK echo "abc\u{34F}def\n"; echo grapheme_strlen("abc\u{34F}def");
Output for 8.1.33, 8.2.29, 8.3.5 - 8.3.27, 8.4.9 - 8.4.14
int(0) int(0) abc͏def 6

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