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

grapheme_strposFind position (in grapheme units) of first occurrence of a string


Процедурный стиль

grapheme_strpos ( string $haystack , string $needle , int $offset = 0 ) : int

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

Список параметров


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). If the offset is negative, it is treated relative to the end of the string. The position returned is still relative to the beginning of haystack regardless of the value of $offset.

Возвращаемые значения

Returns the position as an integer. If needle is not found, grapheme_strpos() will return boolean FALSE.

Список изменений

Версия Описание
7.1.0 Support for negative offsets has been added.


Пример #1 grapheme_strpos() 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_strpos$char_a_ring_nfd $char_a_ring_nfd $char_o_diaeresis_nfd$char_o_diaeresis_nfd);


Результат выполнения данного примера:


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