grapheme_strripos

(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)

grapheme_strriposFind position (in grapheme units) of last occurrence of a case-insensitive string

Description

Procedural style

grapheme_strripos(string $haystack, string $needle, int $offset = 0): int|false

Find position (in grapheme units) of last occurrence of a case-insensitive 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_strripos() will return false.

Examples

Example #1 grapheme_strripos() 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"
$char_O_diaeresis_nfd "O\xCC\x88"// 'LATIN CAPITAL LETTER O WITH DIAERESIS' (U+00D6) normalization form "D"

print grapheme_strripos$char_a_ring_nfd $char_o_diaeresis_nfd $char_o_diaeresis_nfd$char_O_diaeresis_nfd);

?>

The above example will output:

2

See Also

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