convert 2d array to a string using php

Question

I have the following array

 01 03 02 15
 05 04 06 10
 07 09 08 11
 12 14 13 16

I want to convert a string like the following:

Answer 1

Given your array as $myArray, like this:

$newArray = array();
foreach ($myArray as $row) {
    $rowValue = implode(',', $row);
    $newArray[] = $rowValue;
}
$finalString = implode('|', $newArray);