mb_regex_set_options
(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
mb_regex_set_options — Set/Get the default options for mbregex functions
說明
mb_regex_set_options(?string
$options = null): string
Sets the default options described by options
for multibyte regex functions.
參數
-
options -
The options to set. This is a string where each character is an option. To set a mode, the mode character must be the last one set, however there can only be set one mode but multiple options.
Regex options Option Meaning i Ambiguity match on x Enables extended pattern form m '.'matches with newliness '^'->'\A','$'->'\Z'p Same as both the mandsoptionsl 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 or null,
it returns the string that describes the current options.
更新日誌
| 版本 | 說明 |
|---|---|
| 8.0.0 |
If the parameter options is given and not null, the previous
options are returned. Formerly, the current options have been returned.
|
| 8.0.0 |
options is nullable now.
|
參見
- mb_split() - 使用正規表示式分割多位元組字串
- mb_ereg() - Regular expression match with multibyte support
- mb_eregi() - Regular expression match ignoring case with multibyte support