array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'function.mb-ereg.php', 1 => 'mb_ereg', 2 => 'Regular expression match with multibyte support', ), 'up' => array ( 0 => 'ref.mbstring.php', 1 => '多字节字符串 函数', ), 'prev' => array ( 0 => 'function.mb-encoding-aliases.php', 1 => 'mb_encoding_aliases', ), 'next' => array ( 0 => 'function.mb-ereg-match.php', 1 => 'mb_ereg_match', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/mbstring/functions/mb-ereg.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

mb_ereg

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

mb_ereg — Regular expression match with multibyte support

说明

mb_ereg(string $pattern, string $string, array &$matches = null): bool

Executes the regular expression match with multibyte support.

参数

pattern

The search pattern.

string

The search string.

matches

If matches are found for parenthesized substrings of pattern and the function is called with the third argument matches, the matches will be stored in the elements of the array matches. If no matches are found, matches is set to an empty array.

$matches[1] will contain the substring which starts at the first left parenthesis; $matches[2] will contain the substring starting at the second, and so on. $matches[0] will contain a copy of the complete string matched.

返回值

Returns whether pattern matches string.

更新日志

版本 说明
8.0.0 This function returns true on success now. Previously, it returned the byte length of the matched string if a match for pattern was found in string and matches was passed. If the optional parameter matches was not passed or the length of the matched string was 0, this function returned 1.
7.1.0 mb_ereg() will now set matches to an empty array, if nothing matched. Formerly, matches was not modified in that case.

注释

注意:

mb_regex_encoding() 指定的内部编码或字符编码将会当作此函数用的字符编码。

参见