When calling setValue Element\Select, selected incorrect values

[michalbundyra]

When calling $select->setValue(array('1.1')), selected values French and Japanese,
but Japanese is incorrect value

use Zend\Form\Element;
use Zend\Form\Form;

$select = new Element\Select('language');
$select->setLabel('Which is your mother tongue?');
$select->setValueOptions(array(
    '1.1' => 'French',
    '1.2' => 'English',
    '1.10' => 'Japanese',
    '1.20' => 'Chinese',
));

$form = new Form('language');
$form->add($select);

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Originally posted by @googlle at zendframework/zend-form#18

[michalbundyra]

Confirmed. The following test fails when added to ZendTest\Form\View\Helper\FormSelectTest:

public function testIssue18()
{
    $select = new SelectElement('language');
    $select->setLabel('Which is your mother tongue?');
    $select->setAttribute('multiple', true);
    $select->setValueOptions(array(
        '1.1' => 'French',
        '1.2' => 'English',
        '1.10' => 'Japanese',
        '1.20' => 'Chinese',
    ));
    $select->setValue(array('1.1'));        
    $this->assertEquals(array('1.1'), $select->getValue());

    $markup  = $this->helper->render($select);

    $this->assertRegExp('{value="1.1" selected="selected"}i', $markup);
    $this->assertNotRegExp('{value="1.2" selected="selected"}i', $markup);
    $this->assertNotRegExp('{value="1.10" selected="selected"}i', $markup);
    $this->assertNotRegExp('{value="1.20" selected="selected"}i', $markup);
}

---

Originally posted by @adamlundrigan at zendframework/zend-form#18 (comment)

[michalbundyra]

The issue is here: FormSelect view helper uses a non-strict in_array check

---

Originally posted by @adamlundrigan at zendframework/zend-form#18 (comment)

[michalbundyra]

The underlying issue here is with Zend\Stdlib\ArrayUtils#inArray. The protection added there to protect against wonky non-strict checks (by casting everything to string) bumps up against a different oddity in PHP: truncating trailing zeroes, making "1.1" and "1.10" equivalent:

<?php
$needle = '1.10';
$haystack = ['1.1'];

assert(in_array($needle, $haystack) === false);
// PHP Warning:  assert(): Assertion failed in <file> on line 5

(3v4l: https://3v4l.org/HKM8Q)

The last argument of the in_array call in Zend\Stdlib\ArrayUtils#inArray should be changed to always be true.

---

Originally posted by @adamlundrigan at zendframework/zend-form#18 (comment)

[driehle]

somehow the linked pull request hasn't closed this issue...

[Slamdunk]

Closed by #116

somehow the linked pull request hasn't closed this issue...

That's because nowhere in the PR nor in the merge commit there's a Close word