dongyu9850
2018-08-07 11:43
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Laravel如何从两个独立的集合中创建一个对象?

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. :/

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2条回答 默认 最新

  • dongtong7990 2018-08-07 12:40
    最佳回答

    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);
    
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