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

grapheme_strstr(string $haystack, string $needle, bool $beforeNeedle = false): string|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.

beforeNeedle

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 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