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How can I get the key intersection of two arrays?

I have two arrays as shown in the picture.

//array 1
Array
(
    [0] => 223
    [1] => 216
)

/array 2
Array
(
    [221] => Bakers
    [220] => Construction
    [223] => Information Technology
    [216] => Jewellery
    [217] => Photography
    [222] => Retailers
)

I want text where the key (values) of the first array matches the second array (keys).

Expected Result:

Information Technology, Jewellery
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2 answers 


$result = array();
foreach( $array1 as $index ) {
  $result[] = $array2[ $index ];
}
echo implode( ', ', $result );


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Just get the array_intersect_key()

keys, but since you have the keys as values ​​in the first array, you need to flip it with array_flip()

, for example



print_r(array_intersect_key($array2, array_flip($array1)));
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