(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)

grapheme_strrposFind position (in grapheme units) of last occurrence of a string


Stile procedurale

grapheme_strrpos(string $haystack, string $needle, int $offset = 0): int|false

Find position (in grapheme units) of last occurrence of a string

Elenco dei parametri


The string to look in. Must be valid UTF-8.


The string to look for. Must be valid UTF-8.


The optional offset parameter allows you to specify where in haystack to start searching as an offset in grapheme units (not bytes or characters). The position returned is still relative to the beginning of haystack regardless of the value of offset.

Valori restituiti

Returns the position as an integer. If needle is not found, grapheme_strrpos() will return false.


Example #1 grapheme_strrpos() example

"a\xCC\x8A";  // 'LATIN SMALL LETTER A WITH RING ABOVE' (U+00E5) normalization form "D"
$char_o_diaeresis_nfd "o\xCC\x88"// 'LATIN SMALL LETTER O WITH DIAERESIS' (U+00F6) normalization form "D"

print grapheme_strrpos$char_a_ring_nfd $char_o_diaeresis_nfd $char_o_diaeresis_nfd$char_o_diaeresis_nfd);

Il precedente esempio visualizzerĂ :


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