how to compare two collections in laravel-CodePudding

Hello dear Stack overflowers,

I'm trying to compare one collection with the name 'text1', with another collection 'text2'.

I would like to achieve that it puts all values, that 'text1' and 'text2' both have, into another collection.

I already tried using Diff and DiffKeys (see compare two collection arrays in laravel ).

But I was not fully able to understand how I could compare values of 2 collection against each other with these functions. It looked like to me that those 2 functions (Diff and DiffKeys) require an key, which I do not specifically use (yet) in extracting parts of my collections.

My 'text1' collection looks like this:

$text1 = collect('burger', 'cheese', 'bread', 'ham');

My 'text2' collection looks like this:

$text2 = collect('cheese', 'bread', 'tomato');

What I would like to extract from this, are all values that are in both 'text1' and 'text2'. So in this case, it should return:

'cheese', 'bread'

(since these values are both in 'text1' and 'text2')

Is there a simple way to achieve this?

Thank you very much for helping me out.

Regards

Dave

CodePudding user response：

You want the intersect method available on Collections:

$intersect = $text1->intersect($text2);

$intersect->all(); // [1 => 'cheese', 2 => 'bread']

CodePudding user response：

in this case you need intersect method:

The intersect method removes any values from the original collection that are not present in the given array or collection. The resulting collection will preserve the original collection's keys:

$text1Collection = collect('burger', 'cheese', 'bread', 'ham');
$text2Collection = collect('cheese', 'bread', 'tomato');

$resultCollection =$text1Collection->intersect($text2Collection);