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
说明
过程化风格
Returns part of haystack string from the first occurrence of needle to the end of haystack (including the needle).
参数
-
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.
示例
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));
?>以上示例会输出：
o%CC%88a%CC%8A
参见
- 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
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