Hello Readers, If you want to implode the array keys from multi-dimensional array then now PHP 5.5 offers you much easier way to do this.

Lets see the example as below:-

Array
(
    [0] => Array
        (
            [studenID] => 54874
            [City] => New Delhi
            [Marks] => 256
            [School] => 2
        )

    [1] => Array
        (
            [studenID] => 54875
            [City] => Mumbai
            [Marks] => 159
            [School] => 6
        )
)

Now suppose you want the result as New Delhi, Mumbai

Now by using PHP V5.5 you just have to write this code syntax:-

echo implode(', ', array_column($array, 'City'));

Where $array is the name of array and City is my key.