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grapheme_stripos
(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)
grapheme_stripos — Find position (in grapheme units) of first occurrence of a case-insensitive string
Description
Procedural style
$haystack
, string $needle
[, int $offset = 0
] ) : intFind position (in grapheme units) of first 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). 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.
Return Values
Returns the position as an integer. If needle is not found, grapheme_stripos() will return boolean FALSE.
Examples
Example #1 grapheme_stripos() 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_stripos( $char_a_ring_nfd . $char_a_ring_nfd . $char_o_diaeresis_nfd, $char_O_diaeresis_nfd);
?>
The above example will output:
2
See Also
- 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_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
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Steph