php - Right Angle Triangle

Question

I am new in PHP programming.Can anyone explain this code step by step?

for($i=1; $i<=5; $i++){
 for($j=1; $j<=$i; $j++){
    echo "*";
 }
 echo"<br>";
}

Answer 1

The outer loop ($i) goes from 1 to 5. You can think of this as the rows of output in this case.

Within each row, the inner loop ($j) prints out a quantity of $i asterisks. So in row 1, it outputs * , row 2, ** , and so on.

Before moving on to the next row, it prints out a line break. So the final output will be something like:

*
**
***
****
*****