文字
grapheme_strstr
(PHP 5 >= 5.3.0, 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
string grapheme_strstr
( string
$haystack
, string $needle
[, bool $before_needle = false
] )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.
-
before_needle -
If
TRUE, grapheme_strstr() returns the part of the haystack before the first occurrence of the needle (excluding the needle).
返回值
Returns the portion of string, or FALSE if needle is not found.
范例
Example #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