php - How To Validate Phone Numbers in Redux Framework -

i'm trying validate phone number field available options other text won't work since people may use dashes , parentheses enter number.

i've tried preg_replace i'm still not seeing error messages when entering incompatible data, e.g. 'x' characters entered text field should accept number value.

besides pop-up appears that:

there problem action. please try again or reload page.

array(     'id'       => 'sz-header-contact-phone',     'type'     => 'text',     'title'    => __( 'phone number', 'redux-framework-demo' ),     'subtitle' => __( 'enter phone number here.', 'redux-framework-demo' ),     'validate' => 'preg_replace',     'preg' => array(         'pattern' => '^\(\d{3}\) \d{3}-\d{4}$',         'replacement' => 'no numbers'     ),     'msg'      => 'please enter correct phone number',     'placeholder' => 'enter phone number here.' ) 

thanks help.

regards, hung the.

may use preg_quote() before parsing string.