grapheme_strrpos

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

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

Описание

Процедурный стиль вызова

int grapheme_strrpos ( string $haystack , string $needle [, int $offset = 0 ] )

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

Список параметров

haystack -

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

needle -

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

offset -

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.

Возвращаемые значения

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

Примеры

Пример #1 grapheme_strrpos() example

$char_a_ring_nfd = "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);

Результат выполнения данного примера:

2

Смотрите также

• grapheme_stripos() - Find position (in grapheme units) of first occurrence of a case-insensitive string
• grapheme_stristr() - Returns part of haystack string from the first occurrence of case-insensitive needle to the end of haystack.
• grapheme_strpos() - Find position (in grapheme units) of first occurrence of a string
• grapheme_strripos() - Find position (in grapheme units) of last occurrence of a case-insensitive string
• grapheme_strstr() - Returns part of haystack string from the first occurrence of needle to the end of haystack.
• »  Unicode Text Segmentation: Grapheme Cluster Boundaries

Описание на ru2.php.net
Описание на php.ru