CODEWITHSUNDEEP
phparraysvalidationrecursionmultidimensional-array
Jason Schilling
Jason Schilling

Reputation: 476

Validate that a multidimensional array is wholly found in another, potentially larger multidimensional array

I got two arrays and want to check if the second array is in the first. The arrays:

First Array:

array(1) {
  ["group"]=>
  array(3) {
    ["create"]=>
    bool(true)
    ["edit"]=>
    bool(true)
    ["delete"]=>
    bool(true)
  }
}

Second Array

array(1) {
  ["group"]=>
  array(1) {
    ["create"]=>
    bool(true)
  }
}

The depth can be different

in_array doesn't work -> array to conversion error and it doesn't mind the assoc allocation.

Upvotes: 1

Views: 52

Answers (2)

Jason Schilling
Jason Schilling

Reputation: 476

With the approach from @Jignesh Prajapati I found finally a solution. Thank you!

function test( $first_array, $second_array ) {
    $found = FALSE;

    if( is_bool( $second_array ) && is_bool( $first_array ) ) {
        return $second_array === $first_array;
    }

    if( is_array( $first_array ) && is_array( $second_array ) ) {
        foreach( $second_array as $key => $value ) {
            foreach( $first_array as $key_1 => $value_1 ) {
                if( $key === $key_1 ) {
                    $found = test( $value_1, $value );
                }
            }
        }
    }

    return $found;
}

Upvotes: 0

Jignesh Prajapati
Jignesh Prajapati

Reputation: 96

$cnt = 0;
    foreach ($second_array as $key => $value) {
            foreach ($first_array as $key_1 => $value_1) {
                if($key == $key_1){
                    $cnt++;
                }
            }
    }

    if($cnt > 0){
        echo "second array element in first array";
    }else{
        echo "not in array";
    }

Upvotes: 1

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