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<?php
namespace Del\Form\Validator;
class FileExtensionValidator implements ValidatorInterface
{
/** @var array $validExtensions */
private $validExtensions;
/**
* FileExtensionValidator constructor.
* @param array $validExtensions
*/
public function __construct(array $validExtensions)
$this->validExtensions = $validExtensions;
}
* @param mixed $value
* @return bool|void
public function isValid($value)
$debris = explode('.', $value);
$extension = end($debris);
$extension = strtolower($extension);
return in_array($extension, $this->validExtensions);
* @return array|void
public function getMessages()
$validExtensions = $this->validExtensions;
$last = array_pop($validExtensions);
$extensions = 'The file must be a ' . $last . ' file.';
if (count($validExtensions) > 0) {
$extensions = implode(', ', $validExtensions);
$extensions .= ' or ' . $last;
$extensions = 'The file must be either a ' . $extensions . ' file.';
return [$extensions];
delboy1978uk /
form
