Foo.php

<?php
// gumf at the top

class Foo extends AbstractActionController
{
    public function someCommonLogic()
    {
        if ($something) {
            return $this->redirect()->toRoute('someRoute');
        }
        
        // some logic to populate some $viewModel thing
        
        return $viewModel;
    }
    
    public function myAction()
    {
        $vm = $this->someCommonLogic();
        if ($vm->isRedirect())
        {
            return $vm;
        }
        
        // other logic
        
        return $vm;
    }
    
    public function anotherAction()
    {
        $vm = $this->someCommonLogic();
        if ($vm->isRedirect())
        {
            return $vm;
        }
        
        // other logic
        
        return $vm;
    }
}