grapheme_stristr()
(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)
Returns part of haystack string from the first occurrence of case-insensitive needle to the end of haystack
说明
过程化风格
grapheme_stristr(string $haystack,string $needle[,bool $before_needle=FALSE
]): string
Returns part of haystack string starting from and including the first occurrence of case-insensitive needle to the end of haystack.
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 needle).
返回值
Returns the portion of $haystack, or FALSE if $needle is not found.
范例
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)); ?>
以上例程会输出:
o%CC%88a%CC%8A
参见
grapheme_stripos()
Find position(in grapheme units)of first occurrence of a case-insensitive stringgrapheme_strpos()
Find position(in grapheme units)of first occurrence of a stringgrapheme_strripos()
Find position(in grapheme units)of last occurrence of a case-insensitive stringgrapheme_strrpos()
Find position(in grapheme units)of last occurrence of a stringgrapheme_strstr()
Returns part of haystack string from the first occurrence of needle to the end of haystack- » Unicode Text Segmentation: Grapheme Cluster Boundaries