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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace App\Http\Controllers;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Http\Request;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use App\Http\Requests;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Support\Facades\Config;  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                class BackupController extends Controller  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	    public function __construct()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->middleware('auth'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->middleware('lang'); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Get the backup page.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function index()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // Config data  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $data['StoreAllBackups']   = Config::get('laravel-backup.cleanup.defaultStrategy.keepAllBackupsForDays'); | 
            
                            
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                        $data['KeepDailyBackups']  = Config::get('laravel-backup.cleanup.defaultStrategy.keepDailyBackupsForDays'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $data['WeeklyBackups']     = Config::get('laravel-backup.cleanup.defaultStrategy.keepWeeklyBackupsForWeeks'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $data['MonthlyBackups']    = Config::get('laravel-backup.cleanup.defaultStrategy.keepMonthlyBackupsForMonths'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $data['KeepYearlyBackups'] = Config::get('laravel-backup.cleanup.defaultStrategy.keepYearlyBackupsForYears'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    	return view('settings.backups', $data); | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Store the backup config.  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @url   POST: /settings/backups  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param  Requests\BackupSettingValidator $input  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function storeBackup(Requests\BackupSettingValidator $input)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $config = new \Larapack\ConfigWriter\Repository('laravel-backup'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $config->set('cleanup.defaultStrategy.keepAllBackupsForDays',       $input->keepAllBackupsForDaysAll); | 
            
                            
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                        $config->set('cleanup.defaultStrategy.keepDailyBackupsForDays',     $input->keepAllBackupsForDays); | 
            
                            
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                        $config->set('cleanup.defaultStrategy.keepWeeklyBackupsForWeeks',   $input->keepWeeklyBackupsForWeeks); | 
            
                            
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                        $config->set('cleanup.defaultStrategy.keepMonthlyBackupsForMonths', $input->keepMonthlyBackupsForWeeks); | 
            
                            
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                        $config->set('cleanup.defaultStrategy.keepYearlyBackupsForYears',   $input->keepAllBackupsYearly); | 
            
                            
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                        $config->save();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if ($config) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            sleep(3);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            session()->flash('message', 'The backup settings has been updated.'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            session()->flash('class', 'alert-success'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            session()->flash('message', 'The backup settings could not be updated.'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            session()->flash('class', 'alert-danger'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return redirect()->back();  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                        
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.