public function validateEmail($emails) { $emailValidation = new Zend_Validate_EmailAddress(); if (is_string($emails) && preg_match('~,~', $emails)) { $contanctEmails = explode(',', $emails); foreach ($contanctEmails as $email) { if (!$emailValidation->isValid(str_replace(" ", '', $email))) { return array('error' => $emailValidation->getErrors()); } } } elseif (is_string($emails) && !$emailValidation->isValid($emails)) { return array('error' => $emailValidation->getErrors()); } }