TofZGraph

tofz3.php

<?php
/**
 * Created by PhpStorm.
 * User: kayladnls
 * Date: 12/13/14
 * Time: 9:38 PM
 */

// for each row, go up one left one + up one right 2

$rows = array();

$line1 = array(1);
$rows[] = $line1;

$iterations = 25;

echo "1\n";

for ($row = 1; $row< $iterations; $row++)
{
    $line = array();
    for($column = 0; $column <= $row; $column++)
    {
         $first_number  = isset($rows[$row - 1 ][$column - 1 ]) ? $rows[$row - 1 ][$column - 1 ] : 0;
         $second_number = isset($rows[$row - 1 ][$column + 2 ]) ? $rows[$row - 1 ][$column + 2 ] : 0;

        $val = $first_number + $second_number;
        echo $val."\t";
        $line[] = $val;
    }
    $rows[] = $line;
    echo "\n";
}