Basic php algorithms (represented by *) and algorithm pyramid

Basic php algorithms (represented by *) and algorithm pyramid
*
***
*****
*******
*********

***********

The php code is as follows:

<? Phpfor ($ I = 1; $ I <= 6; $ I ++) {for ($ z = 5; $ z >=$ I; $ z --) {echo "" ;}for ($ j = 1; $ j <= 2 * $ I-1; $ j ++) {echo "*";} echo "<br/> ";}

Write a program in php and display the following digital pyramid.

<? Php
$ Tier = 5; $ a = 3; $ B = 4;
While ($ tier --){
For ($ temp = 0; $ temp <= $ a; $ temp ++ ){
Echo '';
}
For ($ temp = $ a + 1; $ temp <= $ B; $ temp ++ ){
Echo '*';
}
$ A --; $ B ++;
Echo '<br/> ';
}
?>
 
How can I use PHP to create a pyramid chart?

You need to know how to draw a pyramid.
0 indicates white, and 1 indicates black. In fact, php controls the number of zeros in each row and the number of followed ones. Right?
It is much easier to use php to learn how to draw images.