Quick question about regex_match

When using regex_match, how would I be able to use the - character? An example of the code is posted below. What would be the correct format? Thanks! 
 

Code:

$rules = [
    'date' => 'required|min_length[2]|max_length[50]|regex_match[/^+[a-zA-Z0-9.- ]+$/]',
];

Escape the - character with a backslash:
 

PHP Code:

$rules = [
    'date' => 'required|min_length[2]|max_length[50]|regex_match[/^+[a-zA-Z0-9.\- ]+$/]',
]; 


CodeIgniter 4 tutorials (EN/FR) - https://includebeer.com
/*** NO support in private message - Use the forum! ***/

Thank you @includebeer it's working now.

Regular expression tester trainer

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )