php array match within a two dimensional array

Question

for example, I have a array:

$objects = ['car', 'cat', 'dog', 'Peter'];

and another:

$types = [
    'man' => ['Peter', 'John','...'],
    'animal' => ['pig', 'cat', 'dog', '...'],
    'vehicle' => ['bus', 'car', '...']
];

and my goal is get an array like:

$result = [
    'man' => ['Peter'],
    'animal' => ['cat', 'dog'],
    'vehicle' => ['car']
]

what is the most efficient way to search within an array, in my current work, I use two foreach loop to search but figured it's too slow, I have about thousands of elements in my array.

Ruslan Osmanov · Accepted Answer · 2017-01-16 05:08:00Z

7

Use array_intersect:

foreach ($types as $key => $type) {
  $result[$key] = array_intersect($type, $objects);
}

answered Jan 16, 2017 at 5:08

Ruslan Osmanov

21.8k8 gold badges52 silver badges62 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Jin Aazoe Over a year ago

But I think add an array_values maybe more fit:array_values(array_intersect($type, $objects));

Yogesh Singasane · Accepted Answer · 2017-01-16 05:15:48Z

0

$objects = ['car', 'cat', 'dog', 'Peter'];

$types = [
    'man' => ['Peter', 'John'],
    'animal' => ['pig', 'cat', 'dog'],
    'vehicle' => ['bus', 'car']
];

foreach ($types as $key => $type) {
  $result[$key] = array_intersect($type, $objects);
}

echo '<pre>';
print_r($result);





Array
(
    [man] => Array
        (
            [0] => Peter
        )

    [animal] => Array
        (
            [1] => cat
            [2] => dog
        )

    [vehicle] => Array
        (
            [1] => car
        )

)

answered Jan 16, 2017 at 5:15

Yogesh Singasane

2733 silver badges12 bronze badges

Collectives™ on Stack Overflow

php array match within a two dimensional array

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related