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    <p>There is a callback constraint. See <a href="http://symfony.com/doc/master/reference/constraints/Callback.html" rel="nofollow">http://symfony.com/doc/master/reference/constraints/Callback.html</a></p> <p><strong>Update:</strong></p> <p>I could not find a cleaner way to get the keys of the current value being validated. There probably is a better way, I did not spend too much time on this but it works for your case. </p> <pre><code> use Symfony\Component\Validator\Constraints; use Symfony\Component\Validator\Context\ExecutionContextInterface; // ... $input = array( 'emails' =&gt; array( 7 =&gt; 'david@panmedia.co.nz', 12 =&gt; 'some@email.add', ), 'user' =&gt; 'bob', 'amount' =&gt; 7, ); // inside a sf2 controller: $validator = $this-&gt;get('validator.builder')-&gt;getValidator(); $validator = Validation::createValidator(); $constraint = new Constraints\Collection(array( 'emails' =&gt; new Constraints\All(array( new Constraints\Email(), new Constraints\Callback(array('methods' =&gt; array(function($value, ExecutionContextInterface $context){ $propertyPath = $context-&gt;getPropertyPath(); $valueKey = preg_replace('/[^0-9]/','',$propertyPath); if($valueKey == 7){ $context-&gt;addViolationAt('email', sprintf('E-Mail %s Has Has Key 7',$value), array(), null); } }))) )), 'user' =&gt; new Constraints\Regex('/[a-z]/i'), 'amount' =&gt; new Constraints\Range(array('min' =&gt; 5, 'max' =&gt; 10)), )); $violations = $validator-&gt;validate($input, $constraint); echo $violations; </code></pre>
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    1. POHow can I validate array keys using Symfony Validation?
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    1. USBesnik
    1. USGhassan Idriss
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    1. COYes, but how do I run it on the array **keys** not values.
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    2. COUpdated the answer since I got a downvote
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      1. USGhassan Idriss
    3. COKind of a hack rather than a solution. But I might be able to twist into a custom validator. Thanks for the effort.
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      1. USPetah
 

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