How To Set Limit On Phone Number Field

Hi,

Add this piece of code to functions.php or use a plugin or use your own written plugin

// Set maxlength
function my_custom_override_checkout_fields( $fields ) {
    $fields['billing']['billing_phone']['maxlength'] = 11;
    return $fields;
}
add_filter( 'woocommerce_checkout_fields' , 'my_custom_override_checkout_fields' );

// Limit Woocommerce phone field to 11 digits number
function my_custom_checkout_field_process() {
    global $woocommerce;

    // Check if set, if its not set add an error. This one is only requite for companies
    if ( ! (preg_match('/^[0-9]{11}$/D', $_POST['billing_phone'] ))){
        wc_add_notice( "Incorrect Phone Number! Please enter valid 11 digits phone number"  ,'error' );
    }
}
add_action('woocommerce_checkout_process', 'my_custom_checkout_field_process');

By default WooCommerce checkout fields support the following attributes for the fields

$defaults = array(
    'type'              => 'text',
    'label'             => '',
    'description'       => '',
    'placeholder'       => '',
    'maxlength'         => false,
    'required'          => false,
    'id'                => $key,
    'class'             => array(),
    'label_class'       => array(),
    'input_class'       => array(),
    'return'            => false,
    'options'           => array(),
    'custom_attributes' => array(),
    'validate'          => array(),
    'default'           => '',
);

Hey there!

Marking as resolved, as the solution above would be the way to do that, if your theme is not restricting that.

Thanks It’s solved now