<p dir="auto"><a href="https://github.com/symfony/security/blob/master/Csrf/TokenGenerator/UriSafeTokenGenerator.php#L48">https://github.com/symfony/security/blob/master/Csrf/TokenGenerator/UriSafeTokenGenerator.php#L48</a></p>
<p dir="auto">I have polyfill-php70 installed. It does not help.</p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/3941091/11628353/6e9a27a0-9cf1-11e5-8a27-8210c7a4ecea.png"><img src="https://cloud.githubusercontent.com/assets/3941091/11628353/6e9a27a0-9cf1-11e5-8a27-8210c7a4ecea.png" alt="screenshot from 2015-12-07 14 44 37" style="max-width: 100%;"></a></p>
<p dir="auto">Currently, EntityChoiceList and ModelChoiceList share quite a lot of duplicated code. This duplication should be reduced by introducing a common base class or something similar.</p>