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.
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
