PHP: HTML table output using Nested for loops in PHP

Nest for loops are used for handling many difficult situations such as Matrix, Recursion etc..In this example, it is shown how nested for loops are useful for outputting a data array into a table (ie. images). 
Additionally in this example, the Nested For Loop uses the same iterator as the parent for loop. Well formatted so the resulting code is clean when executed.


<?php
//Dummy data
$data = array(73,74,75,76,78,79,80,81,82,83,84,85,86,87);

//Our 'stepping' variable
$g = 0;

//Our rowcount
$rowcount = 0;

echo "<table cellspacing='0'>\r";
    for ($i=0; $i<count($data); ) {

        $rowcount++;
        echo "    <tr>\r"; //New row

        $g = $i + 3; //Set our nested limit
        for( ; $i<$g; $i++) { //nested for loop

            if (!isset($data[$i])) { //Allow us to break on incomplete rows
                break;
            }

            echo "        <td style='border: 1px #000 solid;'>\r"; //Out put a cell
            echo "            <p>Row $rowcount <br/> Cell: $i <br/> Data: $data[$i]</p>\r";
            echo "        </td>\r";
        }

        echo "    </tr> \r"; //End New Row
    }

echo "</table>\r";?>