String Rotation

Problem Statement: Write a program to create a function that checks if one string is a rotation of another. For example, "waterbottle" is a rotation of "erbottlewat" because you can rotate it to get the original string.

Input: The input consists of two strings S and T.

Output: The output will print either "True" or "False".

Constraints: 0 ≤ |S| ≤ 10000, 0 ≤ |T| ≤ 10000

Example: Enter strings

Input: waterbottle erbottlewat

Output: True

*/

# Write your PHP code from here

fscanf(STDIN, "%s %s", $S, $T);

function rotation_string($S, $T)

{

    // if both strings are not same length then stop

    if (strlen($S) != strlen($T))

        echo "False";

    // concatenate $string1 to itself, if both

    // strings are of same length

    if (strlen($S) == strlen($T))

        $S = $S . $S;

    if (strpos($S, $T) > 0)

        echo "True";

    else

        echo "False";

}

rotation_string($S, $T);