Merge array in a different way in PHP

Posted by user2984974 on Stack Overflow See other posts from Stack Overflow or by user2984974
Published on 2013-11-12T21:35:36Z Indexed on 2013/11/12 21:53 UTC
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php

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arrays

I have these two arrays:

$array1 = array( '0' => 'apple', '1' => ''   , '2' => 'cucumber' );

$array2 = array( '0' => '',      '1' => 'bmw', '2' => 'chrysler' );

if I do this to merge these arrays:

$result_arr = array_merge($array1, $array2);
print_r( count ( array_filter($result_arr) ) );

the output would be 4.

However, I need to get the number 3. So, when there are two things on the same position (same key) count it only once.

Is it possible to merge/count elements in arrays like that?

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