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grapheme_strrpos
(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)
grapheme_strrpos — Find position (in grapheme units) of last occurrence of a string
Description
Procedural style
$haystack
, string $needle
[, int $offset = 0
] ) : intFind position (in grapheme units) of last occurrence of a string
Parameters
-
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.
Return Values
Returns the position as an integer. If needle is not found, grapheme_strrpos() will return boolean FALSE.
Examples
Example #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);
?>
The above example will output:
2
See Also
- 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
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