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Laravel Blade PHP Expression returns undefined variable

I have something like this in my controller passed to blade

$fields = [
            'productCode' => [
                'type' => 'text',
                'validation' => 'required|min:4|max:10',
                'label' => 'Product Code',
            ],
    'productLine' => [
                'type' => 'select',
                'options' => ['Motorcycles' => 'Motorcycles', 'Classic Cars' => 'Classic Cars', 'Trucks and Buses' => 'Trucks and Buses'],
                'validation' => 'required',
                'label' => 'Product Line',
            ],

in my view blade

<?php 
        foreach ($fields as $field => $param): 
            $options = [];
            if (!empty($param['options'])):
                $options = $param['options'];
            endif;
        ?>
            <x-larastrap::{{ $param['type'] }} 
                name="{{ $field }}" 
                label="{{ $param['label'] }}"
                <?php if (!empty($options)): ?>
                :options="$options"
                <?php endif; ?>
            />
        <?php endforeach ?>

I am getting undefined variable $options but the $options value is being set (i can print_r and see the values. I suspect this has to do with how blade handles php expression. i can’t seems to be able to figure out why

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2

Answers


  1. 0

    the $options variable is encoded as a JSON string using json_encode. Then, within the Blade template, you can pass this JSON string as the options attribute, which will be decoded and used as needed. @php
    $options = json_encode($options); // Convert options to JSON string to pass to Blade template
    @endphp

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  2. 0

    Your blade template does not follow the "Laravel" style of handling UI, modify your blade to this:

    @foreach ($fields as $field => $param)
    @php
        $options = !empty($param['options']) ? $param['options'] : [];
    @endphp

    <x-larastrap::{{ $param['type'] }}
        name="{{ $field }}"
        label="{{ $param['label'] }}"
        @if (!empty($options))
            :options="{{ json_encode($options) }}"
        @endif
    />
@endforeach

    I’ve used json_encode() to properly encode the $options array for passing it to the component as a prop. This should ensure that the $options variable is properly defined and passed to the component without any issues.

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