EncryptAble PHP Trait to encryptable values while storing to database and decrypt when retrieved.

EncryptAble.php

<?php

namespace App\Traits;

use Illuminate\Support\Facades\Crypt;

trait EncryptAble
{
	/**
	 * If the attribute is in the encryptable array
	 * then decrypt it.
	 *
	 * @param  $key
	 *
	 * @return $value
	 */
	public function getAttribute($key)
	{
		$value = parent::getAttribute($key);

		if (in_array($key, $this->encryptable) && $value !== '') {
			$value = Crypt::decryptString($value);
		}

		return $value;
	}

	/**
	 * If the attribute is in the encryptable array
	 * then encrypt it.
	 *
	 * @param $key
	 * @param $value
	 */
	public function setAttribute($key, $value)
	{
		if (in_array($key, $this->encryptable)) {
			$value = Crypt::encryptString($value);
		}

		return parent::setAttribute($key, $value);
	}

	/**
	 * When need to make sure that we iterate through
	 * all the keys.
	 *
	 * @return array
	 */
	public function attributesToArray()
	{
		$attributes = parent::attributesToArray();

		foreach ($this->encryptable as $key) {
			if (isset($attributes[$key])) {
				$attributes[$key] = Crypt::decryptString($attributes[$key]);
			}
		}

		return $attributes;
	}
}


/* 
In model import the trait

use App\Traits\EncryptAble;

class Post extends Model
{
	use EncryptAble;
	
	protected $encryptable = [
		'secret_data'
	];
}
*/

Refer to this links as well :

https://stackoverflow.com/questions/48785932/encrypt-decrypt-db-fields-in-laravel
https://laracasts.com/discuss/channels/laravel/encrypting-model-data