(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
grapheme_strrpos — Find position (in grapheme units) of last occurrence of a string
Процедурний стиль
$haystack,$needle,$offset = 0,$locale = ""Find position (in grapheme units) of last occurrence of a string
haystackThe string to look in. Must be valid UTF-8.
needleThe 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.
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. The search is performed right to left, searching for the first occurrence of needle from the selected grapheme cluster.
locale
Returns the position as an integer. If needle is not found, grapheme_strrpos() will return false.
| Версія | Опис |
|---|---|
| 8.5.0 |
The optional parameter locale has been added.
|
Приклад #1 grapheme_strrpos() 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_strrpos( $char_a_ring_nfd . $char_o_diaeresis_nfd . $char_o_diaeresis_nfd, $char_o_diaeresis_nfd);
?>Поданий вище приклад виведе:
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