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Write a programmer using loop

<html>
<body>
<?php
$a;$b;
for($a=0;$a<=5;$a++){
for($b=5;$b>=$a;$b--){
echo "&";
}
echo "<br>";
}
?>
</body>
</html>

Output:-
*****
****
***
**
*

 Write a programme using loop

<html> <body>

<?php

$af=1;

$ae=0;

$a; $b;

$e=0;

$f=0;

switch ($af)

{ case 1:

for($a=0;$a<=5;$a++){

for($b=0;$b<=$a;$b++){

echo "*"; }

echo "<br>"; }

case 2:

$e=0;

while($e<=5){

$f=0;

while($f<=$e){

echo "*"; $f++; }

echo "<br>"; $e++; }

case 3:

do

{ $be=0;

do{

echo "*"; $be++; }

while($be<=$ae); echo "<br>"; $ae++; } while($ae<=5); } ?> </body> </html>

Output:-

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