How to check is php array have different value of key

Question

I have this array

Array
(
    [0] => Array
        (
            [id] => 1
            [job_id] => 100
        )
    [1] => Array
        (
            [id] => 2
            [job_id] => 100
        )
    [2] => Array
        (
            [id] => 3
            [job_id] => 101
        )
)

Now here how to check if "job_id" is different. eg all have same job_id or not and how many different job_id array have.

Thanks

Possible duplicate of How to compare 2 array with same key but different value PHP — Daniyal
– Daniyal, Commented Mar 28, 2018 at 10:21
@Daniyal I want it with same array not want to compare with other array. Thanks — Yogesh Saroya
– Yogesh Saroya, Commented Mar 28, 2018 at 10:30

narayansharma91 · Accepted Answer · 2018-03-28 10:23:23Z

1

Try this using array function:

$data = Array
(
[0] => Array
    (
        [id] => 1
        [job_id] => 100
    )
[1] => Array
    (
        [id] => 2
        [job_id] => 100
    )
[2] => Array
    (
        [id] => 3
        [job_id] => 101
    )
)
$totalDifferentJobId = count(array_unique(array_column($data, 'job_id')));

It will give you total unique job

answered Mar 28, 2018 at 10:23

narayansharma91

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1 Comment

narayansharma91 Over a year ago

@Nawin $data is your array. Don't copy my $data variable. just assign your array to $data variable. It will works perfectly.

pixx · Accepted Answer · 2018-03-28 10:23:45Z

1

Well, if it is not a too large array, you can do the following:

<?php

$arr = [
    ['id' => 1, 'job_id' => 100],
    ['id' => 2, 'job_id' => 100],
    ['id' => 3, 'job_id' => 101]
];

$jobids = array_unique(array_column($arr, 'job_id'));

var_dump($jobids);

This looks like a db-result, in wich case it would be better to use a group-by statement?

answered Mar 28, 2018 at 10:23

pixx

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