php how to return implode code example

Example 1: implode php

$array = array('banana', 'strawberry', 'apple');
comma_separated  = implode(",", $array);
echo comma_separated; // banana,strawberry,apple

Example 2: php implode

$colors = array("red","blue","green");
$colorsCSV= "'".implode("','",$colors)."'";
//$colorsCSV: 'red','blue','green'