Online PHP editor | refs for FuFQ5

<?php function isPrimeNumber($num) { $isPrime = 1; for ($i = 2; $i <= ($num/2); $i++) { if ($num % $i == 0){ $isPrime = 0; break; } } return ($isPrime==1 || $num==2)? 1 : 0; } function generateRightTriangle( $rows ) { define("END", 47); for ($i = 1, $count = END; $i <= $rows; $i++) { for ($j = 5; $j >= $i; $j--) { while( !isPrimeNumber($count) ){ $count--; } if ($count == 3) { printf("%2d",$count); } else { printf("%d ",$count); } $count--; } printf("\n"); } return true; } if (!generateRightTriangle(5)) { trigger_error("An error has occurred!"); }