\Zend\Form\Element\Email, with multiple=true leads to “Array to string conversion”

[JaapMoolenaar]

PHP throws a notice when validating a Email FormElement with multiple set to true.

I set-up a form like below:

$form = new \Zend\Form\Form();

// Using a \Zend\Form\Element\Email with 'multiple' => true in the attributes:
// - Adds a \Zend\Validator\EmailAddress
// - And a \Zend\Validator\Explode
$form->add(
    array(
        'type' => 'Zend\Form\Element\Email',
        'name' => 'emails',
        'options' => array(
            'label' => 'E-mailaddresses',
        ),
        'attributes' => array(
            'multiple' => true,
        ),
    )
);

ZF2 automatically adds an e-mailaddress validator ( \Zend\Validator\EmailAddress ). And ( because I set 'multiple' => true in it's attributes ) an explode validator ( \Zend\Validator\Explode ), which should run the e-mailaddress validator for every value once exploded using the separator ( by default a ',' ), according to the manual that is.

The tests:

• The validator works perfectly for multiple valid e-mailaddresses, I get no errors.
• It also works perfectly for 1 invalid e-mailaddress ( with or without valid e-mailaddresses ).
• However when submitting 2 ( or more ) invalid e-mailaddress I get a notice: "Notice: Array to string conversion in \vendor\zendframework\zendframework\library\Zend\Validator\AbstractValidator.php on line 159".

I recreated the bug in a separate module for the standard ZendSkeletonApplication.

( You can clone my tests from github here: git clone https://github.com/Satsume/ZendSkeletonApplication-Tests.git --recursive. Once installed go to /tests/ to see the form. )

[samsonasik]

@satsume I created PR #5808 to fix it

[JaapMoolenaar]

Great! That was the fix I was thinking too, but I didn't want to sound overly smart ;-)