#
    ##
   ###
  ####
 #####
######

function draw($size)
{
    for ($i = 1; $i <=$size ; $i++)
    {
        $spaces = $size-$i;
        while ($spaces)
        {
            echo " ";
            $spaces--;
        }
        $stairs = 0;
        while ($stairs < $i)
        {
            echo "#";
            $stairs++;
        }
        echo "<br/>";
    }
}
draw(6);
//output
#
##
###
####
#####
######

$max=5;
for ( $i =1 ; $i<=$max;$i++) {
        for ( $space = 1; $space <= ($max-$i);$space++) {
                echo " ";
        }
        for ( $hash = 1; $hash <= $i;$hash ++ ) {
                echo "#";
        }
        echo "n";
}

//PHP

$n = 6;  // Number of rows.
for($i=1;$i<=$n;$i++){
    echo str_repeat(' ', $n-$i) . str_repeat('#', $i);
    echo 'n';
}

for(var i = 0; i < n; i++)
{
    var s = "";
    for(var j = 0; j < n; j++)
    {
        if(n - i - 2 < j)
        {
            s += "#";
        }
        else
        {
            s += " ";
        }
    }
    console.log(s);
}

$int = 7;

for($i = 1; $i<=$int; $i++){
    printf('%1$s%2$s%3$s',str_repeat(" ",$int-$i),str_repeat("#",$i),"n");
}

$n = 6;
for ($i = 0; $i < $n; $i++) {
$pad = 1;
for ($space = 0; $space < $n-$i-1; $space++) {
    $pad++;
}
echo str_pad('#', $pad,' ',STR_PAD_LEFT);
for ($j = 0; $j < $i; $j++) {
    echo '#';
}
echo '<br>';
}

<?php

$handle = fopen("php://stdin","r");

$n = intval(fgets($handle));


for ($rows = 0; $rows < $n; $rows++) {

    for ($columns = 0; $columns < $n - $rows - 1; $columns++) {

        echo " ";
    }

    for ($columns = 0; $columns < $rows + 1; $columns++) {

        echo "#";
    }

echo "n";

}

?>

function staircase($n){
    foreach (range(1, $n) as $i)
        print( str_repeat(' ',$n-$i).str_repeat('#',$i)."n");
}

function StairCase(n){
  let x = [];
  for(let i = 0; i<n; i++){
    while(x.length < n){
        x.push(" ");
    }
    x.shift();
    x.push("#");
    console.log(x.join(''));
}   }         //StairCase(6)