php loops how to use a for loop or while loop

[gmarkrakesh]

Hello Everyone

this is the code

$a=1;
$b=1;
while($a<=5)
{        
    while($b<=20)
{
 echo $b
}
$b++;
}
$a++;
}

and i want to print
1 1
1 2
1 3
1 4
2 5
2 6
2 7
2 8
3 9
3 10
3 11
3 12
4 13
4 14
4 15
4 16
5 17
5 18
5 19
5 20

[ariful alam]

Hello,
There are some mistakes in your code. The correct code is below. This will generate correct answer.

$a=1;
$b=1;
$i=0;
while($a<=5){
    while($i < 4){
        echo $a . ' ' . $b . '<br/>';
        $b++;
        $i++;
    }
    $a++;
    $i = 0;
}
 

Regard

Happy coding :)