从两个共享相同数组的数组中提取单个值？

Question

$actresses = array(
    1 => "Natalie Wood",
    2 => "Audrey Hepburn",
    3 => "Marilyn Monroe",
    4 => "Grace Kelly",
    5 => "Olivia Hussey");

$actressestoday = array(
    6 => "Jennifer Lopez",
    7 => "Jennifer Love Hewitt",
    8 => "Paula Newman",
    9 => "Lindsay Lohan",
   10 => "Michelle Branch",
   11 => "Olivia Hussey"); 

How do I extract only Olivia Hussey from the array using a function? Basically, how do I combine the two columns and then output a single value for Olivia Hussey using a function in php?

I've tried the following but it is not working:

 $allactresses = array_intersect($actresses, $actressestoday);
 $value = array_column($allactresses, '11');

Thanks.

Answer 1

According to the the documentation , the keys are from the *first" array, not the second. So this might work:

$allactresses = array_intersect($actresses, $actressestoday); 
$value = $allactresses[5];

Answer 2

array_intersect() and reset() is the way to go:

$result = reset(array_intersect($actressestoday, $actresses));
echo $result;
//Olivia Hussey

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Demo

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array_intersect() returns an array containing all the values of array1 that are present in all the arguments. Note that keys are preserved.

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reset() rewinds array's internal pointer to the first element and returns the value of the first array element.