grapheme_stristr
(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
Description
Procedural style
grapheme_stristr(string
$haystack, string $needle, bool $beforeNeedle = false): 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_strstr() returns the part of thehaystackbefore the first occurrence of the needle (excludingneedle).
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
- grapheme_stripos() - Find position (in grapheme units) of first occurrence of a case-insensitive string
- 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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