<?php $arr = array(1,2,3,4,5,6,7,8,9);$string = trim(json_encode(array_map('strval', $arr)), '[]');echo $string;
Standard input is empty
"1","2","3","4","5","6","7","8","9"
The brand new service which powers Ideone!
Widget for compiling and running the source code in a web browser!