(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
mb_regex_set_options — Set/Get the default options for mbregex functions
$options = null
) : string
Sets the default options described by options
for multibyte regex functions.
optionsThe options to set. This is a string where each character is an option. To set a mode, the mode character must be the last one set, however there can only be set one mode but multiple options.
| Option | Meaning |
|---|---|
| i | Ambiguity match on |
| x | Enables extended pattern form |
| m | '.' matches with newlines |
| s | '^' -> '\A', '$' -> '\Z' |
| p | Same as both the m and s options |
| l | Finds longest matches |
| n | Ignores empty matches |
| e | eval() resulting code |
| 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 |
The previous options. If options is omitted or null,
it returns the string that describes the current options.
| 版本 | 说明 |
|---|---|
| 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.
|