grapheme_strstr
(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
grapheme_strstr — Returns part of haystack string from the first occurrence of needle to the end of haystack
說明
過程化風格
grapheme_strstr(string
$haystack, string $needle, bool $beforeNeedle = false): string|falseReturns part of haystack string from the first occurrence of needle to the end of haystack (including the needle).
參數
-
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 theneedle(excluding theneedle).
返回值
Returns the portion of haystack, or false if needle is not found.
範例
示例 #1 grapheme_strstr() 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"
print urlencode(grapheme_stristr( $char_a_ring_nfd . $char_o_diaeresis_nfd . $char_a_ring_nfd, $char_o_diaeresis_nfd));
?>
以上例程會輸出：
o%CC%88a%CC%8A
參見
- grapheme_stristr() - Returns part of haystack string from the first occurrence of case-insensitive needle to the end of haystack
- 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
- » Unicode Text Segmentation: Grapheme Cluster Boundaries