execute() protected method

This method is not abstract because you can use this class as a concrete class. In this case, instead of defining the execute() method, you set the code to execute by passing a Closure to the setCode() method.
See also: setCode()
protected execute ( Symfony\Component\Console\Input\InputInterface $input, Symfony\Component\Console\Output\OutputInterface $output ) : null | integer
$input Symfony\Component\Console\Input\InputInterface An InputInterface instance
$output Symfony\Component\Console\Output\OutputInterface An OutputInterface instance
return null | integer null or 0 if everything went fine, or an error code
Command Class Documentation
Example #1
0
 /**
  * Executes the current command.
  *
  * This method is not abstract because you can use this class
  * as a concrete class. In this case, instead of defining the
  * execute() method, you set the code to execute by passing
  * a Closure to the setCode() method.
  *
  * @param InputInterface   $input  An InputInterface instance
  * @param OutputInterface $output An OutputInterface instance
  *
  * @return null|int null or 0 if everything went fine, or an error code
  *
  * @throws \LogicException When this abstract method is not implemented
  */
 protected function execute(InputInterface $input, OutputInterface $output)
 {
     return parent::execute($input, $output);
 }