What I meant to imply is you can use array_column and array_map interchangeably in this endeavor, but implode() to my knowledge is the only way to take an array and turn it into a delimited string (apart from coding a loop). The echo statement can be used to output strings or scalar values. array_column doesnât provide a comma delimited output either, so at best you could replace array_map with array_column, but you canât remove implodeâ¦unless I am missing something. PHP allows a very simple way to declare a multidimensional array in PHP using the keyword âarrayâ. Array Multidimensional