PHP Array Exercises : Filter array elements with certain key-names

PHP Array: Exercise-51 with Solution

Write a PHP program to filter out some array elements with certain key-names.

Sample Solution:

PHP Code:

$first_array = array('c1' => 'Red', 'c2' => 'Green', 'c3' => 'White', 'c4' => 'Black'); 
$second_array = array('c2', 'c4');
$result = array_diff_key( $first_array, array_flip( $second_array));

Sample Output:

    [c1] => Red                                             
    [c3] => White                                           


Flowchart: PHP - Filter out some elements with certain key-names

PHP Code Editor:

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Next: Write a PHP function to filter a multi-dimensional array. The function will return those items that will match with the specified value.

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