Laravel json convert to array only number PHP

Question

I have code:

return $getId = Permission::select('id')->get();

This code returned me:

[{"id":1},{"id":2},{"id":3},{"id":4}]

I want to query returned the records in the form of:

["1","2","3","4"]

How can I do this? I tried to use json_decode, but it's not work I also tried to use a foreach loop, but the result was the same. I'm doing this because I want to compare the two tables using array_diff, but still I have error:

array_diff(): Argument #1 is not an array

Argument 1 is variable $getId.

Alexey Mezenin · Accepted Answer · 2016-11-03 19:42:05Z

4

You want to use pluck() and toArray() methods:

return $getId = Permission::pluck('id')->toArray();

answered Nov 3, 2016 at 19:42

Alexey Mezenin

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1 Comment

Michal Gallovic Over a year ago

your answer is better :)

Michal Gallovic · Accepted Answer · 2016-11-03 19:45:09Z

2

You can wrap the result in Collection and use pluck method:

$permissions = Permission::select('id')->get();
$ids = collect($permissions)->pluck('id')->all(); // all() to array

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