php - Laravel preg_match(): Unknown modifier ']'

itemprop="text">

Im wokring on Laravel 4.2.
Im trying to use validator to validate a name field with regex here is my rule
below:

public static $rules_save =
            [
 'name' =>
            'required|regex:/[XI0-9/]+/|unique:classes'
];

But
as soon as I call the rule to be validated an error is thrown see
below:

preg_match():
            Unknown modifier
            ']'

In the following
location:

protected function
            validateRegex($attribute, $value, $parameters)
 {

            $this->requireParameterCount(1, $parameters, 'regex');

 return
            preg_match($parameters[0], $value); // **ON THIS LINE**


            }

itemprop="text">

class="normal">Answer

Since you
need to include a / into the character class, you need to
either esacpe it:

'name' =>
            'required|regex:/[XI0-9\/]+/|unique:classes'

            ^

Or use other href="http://php.net/manual/en/regexp.reference.delimiters.php"
rel="noreferrer">regex
delimiters.

When using the PCRE functions, it is required that the pattern is enclosed by
delimiters. A delimiter can be any non-alphanumeric, non-backslash,
non-whitespace character.

Often used
delimiters are forward slashes (/), hash signs
(#) and tildes (~).