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												 				  Set/Get the default options for mbregex functions				  				 				 				 mb_regex_encoding				 mb_send_mail				 Multibyte String Functions				 PHP Manual								 				  mb_regex_set_options				  (PHP 4 >= 4.3.0, PHP 5)mb_regex_set_options — Set/Get the default options for mbregex functions								 				   				 				  Description				  				   string mb_regex_set_options				    ([ string $options				  ] )								  				   Sets the default options described by options				 				   for multibyte regex functions.				  				 												 				  Parameters				  				   								    								     options												     								      				       The options to set.				      				     								    								   								  				 												 				  Return Values				  				   The previous options. If options				 is omitted, 				   it returns the string that describes the current options.				  				 												 				  See Also				  				   				    mb_split()				    mb_ereg()				    mb_eregi()				   				  				 																 mb_regex_encoding				 mb_send_mail				 Multibyte String Functions				 PHP Manual