It seems like you do not handle an error condition here. This can introduce security issues, and is generally not recommended.
If you suppress an error, we recommend checking for the error condition explicitly:
// For example instead of@mkdir($dir);// Better useif(@mkdir($dir)===false){thrownew\RuntimeException('The directory '.$dir.' could not be created.');}
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18
'The %s\DefaultGenerator class is deprecated since sonata/media-bundle 3.4 and will be removed in 4.0.'
19
.' Use \Sonata\MediaBundle\Generator\IdGenerator instead.',
If you suppress an error, we recommend checking for the error condition explicitly: