Laravel如何从两个独立的集合中创建一个对象？

Question

I've got an collection:

$collection1 = [ 'file1', 'file2' ];

I want to add properties to collection1

$collection2 = [ 'property1' => 'value1', 'property2' => 'value2' ];

to have:

$collection1 = [ 'file1' => [ 'property1' => 'value1', 'property2' => 'value2' ],
 'file2' => [ 'property1' => 'value1', 'property2' => 'value2' ] ];

how can I do it?

I tried something like:

 $collection1[0]->push($collection2);
 $collection1[1]->push($collection2);

But it's not working. I don't know why this is not working out-of-the-box like in javascript. :/

Answer 1

Check this code:

$collection1 = [ 'file1', 'file2' ];
$collection2 = [ 'property1' => 'value1', 'property2' => 'value2' ];

$newCollection = collect($collection1)->flip()->map(function() use ($collection2) { 
return $collection2;
        });

dd($newCollection);

or this code:

$collection1 = collect([]);
$collection2 = [ 'property1' => 'value1', 'property2' => 'value2' ];


$collection1->put('file1', $collection2);
$collection1->put('file2', $collection2);

dd($collection1);

or this code:

$collection1 = [ 'file1', 'file2' ];
$collection2 = [ 'property1' => 'value1', 'property2' => 'value2' ];

$test = collect($collection1)->map(function ($file) use ($collection2) {
    return [$file => $collection2];
});

dd($test);

or this code:

$collection1 = [ 'file1', 'file2' ];
$collection2 = [ 'property1' => 'value1', 'property2' => 'value2' ];


$newCollection = collect($collection1)->flatMap(function ($file) use ($collection2) {
    return [$file => $collection2];
});

dd($newCollection);