Create Your Own Blade Directive

It’s very easy - just add your own method in app/Providers/AppServiceProvider.php. For example, if you want to have this for replace <br> tags with new lines:

<textarea>@br2nl($post->post_text)</textarea>

Add this directive to AppServiceProvider’s boot() method:

public function boot()
{
    Blade::directive('br2nl', function ($string) {
        return "<?php echo preg_replace('/\<br(\s*)?\/?\>/i', \"\n\", $string); ?>";
    });
}