Php/docs/function.mb-regex-set-options

• PHP Manual
• 多字节字符串 函数
• Set/Get the default options for mbregex functions

mb_regex_set_options

(PHP 4 >= 4.3.0, PHP 5, PHP 7)

mb_regex_set_options — Set/Get the default options for mbregex functions

说明

mb_regex_set_options ([ string $options = mb_regex_set_options() ] ) : string

Sets the default options described by options for multibyte regex functions.

参数

options

The options to set. This is a string where each character is an option. To set a mode, the mode character must be the last one set, however there can only be set one mode but multiple options.

Regex options

Option	Meaning
i	Ambiguity match on
x	Enables extended pattern form
m	'.' matches with newlines
s	'^' -> '\A', '$' -> '\Z'
p	Same as both the m and s options
l	Finds longest matches
n	Ignores empty matches
e	eval() resulting code

Regex syntax modes

Mode	Meaning
j	Java (Sun java.util.regex)
u	GNU regex
g	grep
c	Emacs
r	Ruby
z	Perl
b	POSIX Basic regex
d	POSIX Extended regex

返回值

The previous options. If options is omitted, it returns the string that describes the current options.

更新日志

版本	说明
8.0.0	If the parameter options is given, the previous options are returned. Formerly, the current options have been returned.

参见

• mb_split() - 使用正则表达式分割多字节字符串
• mb_ereg() - Regular expression match with multibyte support
• mb_eregi() - Regular expression match ignoring case with multibyte support