It could be a brain booster exercise for those who recently started learning PHP and just started a loop.
You have probably done a pyramid program in C if you have a programming background.
You would have to use a two-loop inside the loop, and you can create this kind of pyramidal structure of any symbol.
Remember always there would be a loop which runs in decreasing order for creating spaces.
In the following program, I added a query string so that you can generate any row pyramids only bypassing the query string in the URL.
<?php
$numberOfRow = $_GET['row']?? 10;
for($i=1;$i<=$numberOfRow;$i++){
/*this is explanation of spaces*/
//echo "<span style='color:#155fd6;'>".$numberOfRow-$i."</span>";
for($j=1;$j<=$numberOfRow-$i;$j++){
echo " ";
}
for($k=1;$k<=$i;$k++){
echo "▲ ";
}
echo "<br />";
}
?>
You can also read about how to check string in url.