Render template from blade template in database

You should probably take a look at this: https://github.com/Flynsarmy/laravel-db-blade-compiler

Haven't tried anything like that myself :)

I know this is old, but other people might find the answer useful.

As you have figured out, you can use Blade::compileString() to compile a piece of Blade template, taken for example from a DB column. What are Blade templates compiled to? If you look into storage/framework/views/ in your project folder, you will see that they are compiled into PHP code.

In fact, this is what compileString does:

Blade::compileString('Hello, {{ $planet }}!') === 'Hello, <?php echo e($planet); ?>!'

How can you evaluate that piece of PHP code against a custom array of variables?

Taking a hint from Illuminate\View\Engines\PhpEngine and adding the infamous eval('?>' . $php) trick, here is one possible implementation:

use Symfony\Component\Debug\Exception\FatalThrowableError;

function render($__php, $__data)
{
    $obLevel = ob_get_level();
    ob_start();
    extract($__data, EXTR_SKIP);
    try {
        eval('?' . '>' . $__php);
    } catch (Exception $e) {
        while (ob_get_level() > $obLevel) ob_end_clean();
        throw $e;
    } catch (Throwable $e) {
        while (ob_get_level() > $obLevel) ob_end_clean();
        throw new FatalThrowableError($e);
    }
    return ob_get_clean();
}

And here is how you'd use it in a route or in a controller method:

$blade = 'Hello, {{ $planet }}!';
$php = Blade::compileString($blade);
return render($php, ['planet' => 'World']);

Thank you @tobia , this code really helped me on a project.

Does this work for anyone with @foreach and Laravel 5.3. The new loop function throws an ErrorException Undefined variable: __env

@jarnheimer try this:

$__data['__env'] = app(\Illuminate\View\Factory::class);

@gerardojbaez That helped me! Thanks for pointing that out.

The solution of @tobia parses PHP code in the blade template.

If you parse user generated content as blade template, anyone could inject your source code and take over your system.

Just to consider. Maybe it's better to parse this in a separate project or sandbox so it's not possible to capture your core application.

The easiest way is use localization manner to substitute values in your template. First save in database string like this $content = 'Hello :username'; Second in view.blade.php: {{ __($content, ['name' => $user->name]) }}

I found this to be the easiest way for me:

$html = View( [ 'template' => $email_template->body_blade ], $data )->render();

I use this for sending emails that use an email template that users write and save to the database.

Which View class are you using? When using the helper function view() or the View facade I get

strpos() expects parameter 1 to be string, array given

This helped me out a lot. Thanks!

Hello @phaseshift, which View class are you using here? I hope you'll answer this and help other people solve their problem too.

Thanks.

I am on the hunt for the same thing... I found this:

https://packagist.org/packages/wpb/string-blade-compiler

I think this is what @phaseshift is referring to...

You can simply use

$content = "OTP: {{$pass}}";
$context = [
	'pass' => '1234'
]
$output = Blade::render($content, $context)

Tested on Laravel 9