How to get old input value from name input array laravel

Question

I have this code

@foreach($questions as $question_name => $question_details)
                            <h5>{{ $question_name }}</h5>
                            @foreach($question_details as $question_id => $question_description)
                                <p class="ms-3">{{ $question_description }}</p> 
                                <input type="hidden" name="question_id[]" value="{{ $question_id }}"/>
                                <textarea name="answers[]" class="form-control ms-3" cols="30" rows="2" placeholder="Your answer here.."></textarea>
                            @endforeach
                        @endforeach

And when I submit a form with some empty values, the answers that I got also get deleted if some error occurs I tried this to get back my old inputs but it didn't bring me anything

I tried

<textarea name="answers[]" class="form-control ms-3" cols="30" rows="2" placeholder="Your answer here..">{{ old('answers') }}</textarea>

<textarea name="answers[]" class="form-control ms-3" cols="30" rows="2" placeholder="Your answer here..">{{ old('answers[]') }}</textarea>

<textarea name="answers[]" class="form-control ms-3" cols="30" rows="2" placeholder="Your answer here..">{{ old('answers.0') }}</textarea>

But nothing really succeed to bring me back the old values that I typed can someone help me with that?

could you please share what does dd(session()->getOldInput()) reutrns, add this while submitting. — Saroj Shrestha
– Saroj Shrestha, Commented May 7, 2022 at 14:49
Nobody can help without knowing what your controller does. For format use old('answers[0]') or old('answers.0'). See stackoverflow.com/questions/42050732/old-input-for-array — miken32
– miken32, Commented May 7, 2022 at 16:57

Yinci · Accepted Answer · 2022-05-09 07:16:09Z

When you submit a form that has a HTML array (name="answers[]"), it will be converted to a proper PHP array in the backend. This also means that the values will be indexed like a PHP array is always indexed. If you have three rows, even without values, you can expect it to look like so:

dd($request->input('answers');
/* Output: [
    0 => null,
    1 => null,
    2 => null,
]; */

When you then fetch old('answers'), you will get an array. If you want the second answer, you will have to fetch old('answers.1').

If you want the structure to be more clear and dynamic, you could use your question ID as index parameter:

@foreach($question_details as $question_id => $question_description)
    <p class="ms-3">{{ $question_description }}</p> 
    <textarea name="answers[{{$question_id}}]" class="form-control ms-3" cols="30" rows="2" placeholder="Your answer here...">{{old("answers.{$question_id}")}}</textarea>
@endforeach

Now your array will be keyed by your question IDs. If, however, you don't want to do that, you can also key by loop index:

@foreach($question_details as $question_id => $question_description)
    <p class="ms-3">{{ $question_description }}</p> 
    <input type="hidden" name="question_id[{{$loop->index}}]" value="{{ $question_id }}"/>
    <textarea name="answers[{{$loop->index}}]" class="form-control ms-3" cols="30" rows="2" placeholder="Your answer here...">{{old("answers.{$loop->index}")}}</textarea>
@endforeach

You can read more about the $loop variable here

Snapey · Accepted Answer · 2022-05-09 13:55:36Z

0

<textarea name="answers[]" 
    class="form-control ms-3" cols="30" rows="2" 
    placeholder="Your answer here.."
    >{{ old('answers.' . $loop->index) }}</textarea>

edited May 9, 2022 at 13:55

answered May 7, 2022 at 18:22

Snapey

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3 Comments

Yinci Over a year ago

It helps when you explain why your code works and why the question's code does not. This piece of code might work but it's probably not clear to the asker as to why it works.

Snapey Over a year ago

@codingbruh Your edit of my answer introduces an issue. Now the content of the text area will include an extra and unwanted newline . The text area content should be immediately wrapped by the > and < . Please revert your edit

codingbruh Over a year ago

Alright. Fair Enough

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