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Editorial Team
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Asked: 2026-06-07T05:23:46+00:00

I am building a form class in Symfony2. In my class, I have a

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I am building a form class in Symfony2. In my class, I have a choice field. I built a function to return my choice array:

public function getCardTypes()  {
    return array('visa' => 'Visa', 'mc' => 'MasterCard', 'amex' => 'American Express');
}

Later, I add a choice field to my form with this array:

$builder->add('PaymentCCType', 'choice', array('choices' => $this->getCardTypes()));

And then in getDefaultOptions function I have a choice constraint for this field:

'PaymentCCType' => new Choice(array('choices' => $this->getCardTypes())),

I seem to be having a problem with this validator. When I submit this form, I get the following error underneath my select box: “The value you selected is not a valid choice”. Of course, I am using one of the choices in my array.

What am I doing wrong?

/* edit */

I have noticed that of the 4 fields I have like this, I only get the error on 3 of them. the one where the choice is month (simple 1-12), validation works.

/* edit 2 */

the issue appears to occur when the array key does not match the value. i switched my array to array('Visa' => 'Visa', 'MasterCard' => 'MasterCard', 'American Express' => 'American Express') and now it works.
Is there any way around this? I feel like I can’t be the only one with this issue. it occurs even when you have a regular (non-associative) array like array('Visa', 'MasterCard', 'American Express')

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1 Answer

  1. Editorial Team

    edit
    In response to my issue, the Symfony team pointed out the choice validator accepts an array of possible values (not possible choices like the choice field). the easiest way to do this is to use the array_keys function:

    'PaymentCCType' => new Choice(array('choices' => array_keys($this->getCardTypes()))),

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