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  • 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 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
    • grapheme_strstr()Returns part of haystack string from the first occurrence of needle to the end of haystack
    • » Unicode Text Segmentation: Grapheme Cluster Boundaries