Php Artisan Key Generate Reset

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Introduction

Laravel's encrypter uses OpenSSL to provide AES-256 and AES-128 encryption. You are strongly encouraged to use Laravel's built-in encryption facilities and not attempt to roll your own 'home grown' encryption algorithms. All of Laravel's encrypted values are signed using a message authentication code (MAC) so that their underlying value can not be modified once encrypted.

Configuration

Minor issue there, I'm trying to use php artisan key:generate, to set up my key, but it doesn't get set anywhere despite the success message that I get in the console. Not a big deal in itself as I just copy the key shown and paste it in my.env file, but just wondering why it's not working for me, never has. Generator delegation via yield from ¶. In PHP 7, generator delegation allows you to yield values from another generator, Traversable object, or array by using the yield from keyword. The outer generator will then yield all values from the inner generator, object, or array until that is no longer valid. Dec 07, 2016 php artisan key:generate Regenerating the Application Key It is important to note that if the encryption key needs to be regenerated after an application has been in use, any data that was previously encrypted using the old key cannot be decrypted using the new encryption key.

Before using Laravel's encrypter, you must set a key option in your config/app.php configuration file. You should use the php artisan key:generate command to generate this key since this Artisan command will use PHP's secure random bytes generator to build your key. If this value is not properly set, all values encrypted by Laravel will be insecure.

Using The Encrypter

Encrypting A Value

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You may encrypt a value using the encrypt helper. All encrypted values are encrypted using OpenSSL and the AES-256-CBC cipher. Furthermore, all encrypted values are signed with a message authentication code (MAC) to detect any modifications to the encrypted string:

Encrypting Without Serialization

Encrypted values are passed through serialize during encryption, which allows for encryption of objects and arrays. Thus, non-PHP clients receiving encrypted values will need to unserialize the data. If you would like to encrypt and decrypt values without serialization, you may use the encryptString and decryptString methods of the Crypt facade:

Decrypting A Value

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You may decrypt values using the decrypt helper. If the value can not be properly decrypted, such as when the MAC is invalid, an IlluminateContractsEncryptionDecryptException will be thrown:

For those who struggle with maintaining their database schema, or who have problems applying updates and often revert them, there is a solution. Laravel, the MVC framework which I wrote about previously, offers you migrations.

In short, migrations are files which contain a class definition with both an up() and a down() method. The up() method is run when the migration is executed to apply changes to the database. The down() method is run to revert the changes. If you need to update the database, you just create a new migration and voilà. Not happy with it? Revert it and you’re back on track. Openssl generate private key pem format free.

It all seems pretty cool, doesn’t it? But how does it work for Laravel? First you have to configure your database connection, and then you use Artisan, Laravel’s command line interface, to install the migrations table and run, revert, create… migrations.

Open a console and navigate to the root directory of your Laravel install. Run the following command:

This command causes Artisan to create a special table in your database to keep track of what migrations have already been executed.

To create a new migration, run this command: Final fantasy xiv realm reborn cd key generator.

This creates the migration file which handles the users table. You can find your migration file inside the application/migrations folder. Artisan adds the date and time of the command’s execution as a prefix to the file, so the file would be named something like “2012_07_25_071925_create_users_table.php”. Be sure to use a descriptive name so that it’s clear what the migration does from just a glance.

Open the file and you’ll see a class with the two methods up() and down().

The up() method runs when the migration is executed and creates the users table which holds five columns. The first is an auto-incrementing ID column, followed by VARCHAR columns for a username, email, and password. The first parameter to string() is the name of the column (e.g. “username”) and the second is the size of the column (e.g. 32 characters long). The final columns are created by the timestamps() method which creates “created_at” and “updated_at” columns.

The down() method is simpler than its predecessor and simply tells the database to drop the users table.

Now this file won’t do anything if it just sits there. To execute all outstanding migrations, run:

Currently it is not possible to run a specific migration. You can however run all the migrations in the application folder by the command:

You can do the same for a specific bundle by using the same command but with the bundle’s name.

Now let’s say you realize that you made a design error and you want to roll back the last migration run. Simply type:

It’s not yet possible to automatically roll-back to a point before a specific migration, so you’ll have to run the command repeatedly until you reach that migration. You can however reset all migrations that you’ve ever ran just by running:

Php Artisan Key Generate Reset Key

As it stands now, the database would allow users to register the same username or email address any number of times. We want to restrict that and only allow an address or username to be used once. Of course, we don’t want to roll back the previous migration because we would lose data if we did, so instead we create a new one.

The up() method should add a unique index on the fields, like this:

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That’s it! I hope you find Laravel’s migrations a solution to avoid all the hours of pain you’ve gone through managing your database schema. See you next time!

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