(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
grapheme_stristr — Returns part of haystack string from the first occurrence of case-insensitive needle to the end of haystack
Procedural style
Returns part of haystack string starting from and including the first occurrence of case-insensitive needle to the end of haystack.
haystackThe input string. Must be valid UTF-8.
needleThe 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).
Returns the portion of haystack, or false if needle is not found.
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
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