Symfony 3.4 Array to string conversion when trying to display flash messages

Question

I have to be missing something here, just trying to set a flash message in a new project.

In controller:

$this->addFlash(
    'success',
    'Your entry was added!'
);

In my template, I include:

{% for message in app.flashes(['success', 'notice']) %}
    <div class="alert alert-success">
        <p align="center">
            <b>Success! </b><br/>
            {{ message }}
        </p>
    </div>
{% endfor %}

I get the following exception every time:

"An exception has been thrown during the rendering of a template ("Notice: Array to string conversion")."

I checked the length of message and it's zero. If I dump it, it's an empty array as it should be. Anyone see what I'm missing here, driving me crazy. Also, if I set a flash message it gives me the same error.

What is your symfony version? Look this article. It tells you can filter by multiple type after symfony 3.3. symfony.com/blog/new-in-symfony-3-3-improved-flash-messages — tolgakaragol
– tolgakaragol, Commented Aug 22, 2019 at 20:41
Current 3.4 release. I copied the code from that page, so figured it would work. Have never had this problem in any other projects. — Jestep
– Jestep, Commented Aug 22, 2019 at 20:45
In your twig template the for loop message is an array, so change message in messages and add another for loop to show each message (as showed in the docs). — gp_sflover
– gp_sflover, Commented Aug 22, 2019 at 21:21

James · Accepted Answer · 2023-03-24 11:12:48Z

4

Read and display several types of flash messages:

{% for label, messages in app.flashes(['success', 'notice']) %}
    {% for message in messages %}
        <div class="alert alert-success">
            <p align="center">
                <b>Success! </b><br/>
                {{ message }}
            </p>
        </div>
    {% endfor %}
{% endfor %}

See: https://symfony.com/doc/current/controller.html#managing-the-session

edited Mar 24, 2023 at 11:12

James

4,7905 gold badges39 silver badges50 bronze badges

answered Aug 22, 2019 at 21:38

Manzolo

1,97912 silver badges13 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Jestep Over a year ago

Good lord I'm an idiot. 10 straight hours and I apparently can't see the most obvious thing ever... Thank you

Collectives™ on Stack Overflow

Symfony 3.4 Array to string conversion when trying to display flash messages

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related