1,121,12321,123454321 create pyramid using php

1st logic

1^2 = 1

11^2 = 121

111^2 = 12321

1111^2 = 1234321

11111^2 = 123454321

<?php

for($s=1;$s<=100000;$s=($s*10)+1) 

{

    echo $s*$s.'</br>';

}

?>

using php you can create output in this way too.


<?php

$s=1;$i=1;$j=1;$m=1;$n=1;

echo $s.'</br>';

for($s=2;$s<=5;$s++)

{

    $out=$m.$s.$n;

    echo $out.'</br>';

    $m=$m.++$i;

    $n=++$j.$n;

}

?>