grapheme_strlen
grapheme_strripos
Grapheme 함수 목록
PHP Manual

# grapheme_strpos

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

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

### 설명

Procedural style

int grapheme_strpos ( string `$haystack` , string `$needle` [, int `$offset` ] )

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

### 인수

`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). If not given, the default is zero. The position returned is still relative to the beginning of haystack regardless of the value of $offset.

### 반환값

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

### 예제

Example #1 grapheme_strpos() example

`<?php
$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_strpos( $char_a_ring_nfd . $char_a_ring_nfd . $char_o_diaeresis_nfd, $char_o_diaeresis_nfd);
?>`

위 예제의 출력:

    2

### 참고

- 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_strripos() - Find position (in grapheme units) of last occurrence of a case-insensitive string
- grapheme_strrpos() - Find position (in grapheme units) of last occurrence of a 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

grapheme_strlen
grapheme_strripos
Grapheme 함수 목록
PHP Manual