ok, today I used a for loop to make a ninety-nine multiplication table;
Fibonacci sequence:
<?php
// Fibonacci sequence
// 1 1 2 3 5 8 13
function fab( $n ){
if( $n <= 2 ){
return 1;
}else{
return fab( $n-1 ) + fab( $n-2 );
}
}
echo fab(7);
?>