Contents

<?php

function pascalsTriangleRows($rowCount)
{
    if ($rowCount < 0 || $rowCount === null) {
        return -1;
    }
    $output = [];
    if ($rowCount === 0) {
        return $output;
    }
    foreach (range(0, $rowCount-1) as $rowNum) {
        array_push($output, pascalRow($rowNum));
    }
    return $output;
}

function pascalRow($n)
{
    $line = [1];
    if ($n === 0) {
        return $line;
    }
    foreach (range(0, $n-1) as $k) {
        array_push($line, $line[$k] * ($n-$k) / ($k+1));
    }
    return $line;
}

Version data entries

226 entries across 226 versions & 1 rubygems

Version	Path
trackler-2.2.1.180	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.179	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.178	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.177	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.176	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.175	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.174	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.173	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.172	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.171	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.170	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.169	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.167	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.166	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.165	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.164	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.163	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.162	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.161	tracks/php/exercises/pascals-triangle/example.php
trackler-2.2.1.160	tracks/php/exercises/pascals-triangle/example.php