Grapheme Functions
PHP Manual

grapheme_stristr

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

Description

Procedural style

stringfalse grapheme_stristr(string $haystack, string $needle, bool $beforeNeedle = 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).

Return Values

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

Examples

Example #1 grapheme_stristr 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 urlencode(grapheme_stristr( $char_a_ring_nfd . $char_o_diaeresis_nfd . $char_a_ring_nfd, $char_O_diaeresis_nfd));

?>

The above example will output:

o%CC%88a%CC%8A

See Also