Block Email DomainsAdd a comma separated list of email domains to block. Example: gmail.com, yahoo.com, outlook.com";
$tooltips['form_field_block_email_domains_validation'] = "
Block Email Domains Validation Message
The message that will show if a blocked email domain is entered.";
return $tooltips;
}
/*
Custom Email Field Validation
*/
add_filter( 'gform_field_validation', function ( $result, $value, $form, $field ) {
if ( $field->type == 'email' ) {
// replace white space
$blocked_domains_string = preg_replace('/\s+/', '', strtolower($field["block_email_domains"]));
// convert string to array
$blocked_domains = explode(",", $blocked_domains_string);
// check if value is an array for when a second email confirmation filed is enabled
if(is_array($value)){
$values = $value;
}else{
$values[] = $value;
}
if($values){
foreach ($values as $value) {
$domain = substr(strrchr(strtolower($value), "@"), 1);
if($field["block_email_domains"] && in_array($domain, $blocked_domains)){
$result['is_valid'] = false;
if(!empty($field["block_email_domains_validation"])){
$error_message = $field["block_email_domains_validation"];
}else{
$error_message = 'Sorry, '.$domain.' email addresses are not accepted on this field. Please provide another email address and try again.';
}
$result['message'] = empty( $field->errorMessage ) ? __( $error_message, 'gravityforms' ) : $field->errorMessage;
}
}
}
}
return $result;
}, 10, 4 );
}
?>