mb_ereg
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
mb_ereg — Regular expression match with multibyte support
说明
$pattern
, string $string
[, array &$regs
] ) : intExecutes the regular expression match with multibyte support.
参数
-
pattern -
The search pattern.
-
string -
The search string.
-
regs -
If matches are found for parenthesized substrings of
patternand the function is called with the third argumentregs, the matches will be stored in the elements of the arrayregs. If no matches are found,regsis set to an empty array.$regs[1] will contain the substring which starts at the first left parenthesis; $regs[2] will contain the substring starting at the second, and so on. $regs[0] will contain a copy of the complete string matched.
返回值
Returns the byte length of the matched string if a match for
pattern was found in string,
or FALSE if no matches were found or an error occurred.
If the optional parameter regs was not passed or
the length of the matched string is 0, this function returns 1.
更新日志
| 版本 | 说明 |
|---|---|
| 7.1.0 |
mb_ereg() will now set regs to
an empty array, if nothing matched. Formerly,
regs was not modified in that case.
|
注释
Note:
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
- mb_regex_encoding() - Set/Get character encoding for multibyte regex
- mb_eregi() - Regular expression match ignoring case with multibyte support