Laravel - 无法访问集合索引

Question

For sure it's an understanding issue on my part. I'm just trying to create a collection in which the elements can be output.

Example:

So I want to be able to execute:

$collection=collect([
    'index1' => 'data1',
    'index2' => 'data2',
    'index3' => 'data3',
]);

$row=$collection->first();
dd($row->index1);

Or similar.. But I get the error

trying to get property of a non object.

It's an understanding issue about Laravel collections, I've read the Laravel documentation which goes from basic usage, to API reference. I cannot find the information on how to produce this basic static collection.

Can someone help?

Answer 1

$row=$collection->first(); points to the value data1, not an object/array.

To get the expected behavior try the code below, it wraps each in individual arrays.

$collection=collect([
                             ['index1' => 'data1'],
                             ['index2' => 'data2'],
                             ['index3' => 'data3'],
                            ]);

$row=$collection->first();
dd($row->index1);