How can I create a pyramid from using php?

Question

I need to create a pyramid using asterisks. I specify a value which becomes the base of the pyramid. The base contains as much asterisks as the value specified and the pyram

Answer 1

$n = 5;
for($i = $n; $i >= 1; $i--){
    for($j = 1; $j <= $i; $j++){
        if($j < $i){
            echo '0';//you can replace 0 with space
        }else{
            $num = $n - $i;
            for($k = 0; $k <= $num; $k++){
                echo '*';
            }
            for($y = 1; $y <= $n - 1; $y++){
                if($y <= $num){
                    echo '*';
                }else{
                    echo '0';//you can replace 0 with space
                    if($y == $n - 1){
                        echo '<br/>';
                    }
                }
            }
        }
    }
}

Answer 2

function create_piramide ($filas) {    
    $n = $filas;
    echo '<pre>';
    for ($i = $filas; $i >= 0; $i--) {              
        echo str_repeat(' ', $i).str_repeat('o ', $n - $i)."\n";
    }
    echo '</pre>';
} 

create_piramide (10);