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grapheme_stristr

PHP function Edit on GitHub ✎

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

Returns part of haystack string from the first occurrence of case-insensitive needle to the end of haystack

Description

Procedural

grapheme_stristr(string $haystack, string $needle, bool $beforeNeedle = false, string $locale = ""): string|false

Returns part of haystack string starting from and including the first occurrence of case-insensitive needle to the end of haystack.

Parameters

haystack: The input string. Must be valid UTF-8.
needle: The string to look for. Must be valid UTF-8.
beforeNeedle: If true, grapheme_stristr() returns the part of the haystack before the first occurrence of the needle (excluding needle).
locale: Locale

Return Values

Returns the portion of haystack, or false if needle is not found.

Changelog

Version	Description

Examples

grapheme_stristr() example

php

<?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 urlencode(grapheme_stristr( $char_a_ring_nfd . $char_o_diaeresis_nfd . $char_a_ring_nfd, $char_O_diaeresis_nfd));

?>

The above example will output:

output

o%CC%88a%CC%8A