# Php Program to Check whether all the rotations of a given number is greater than or equal to the given number or not

Given an integer *x*, the task is to find if every k-cycle shift on the element produces a number greater than or equal to the same element.

A k-cyclic shift of an integer *x* is a function that removes the last *k* digits of *x* and inserts them in its beginning.

For example, the k-cyclic shifts of *123* are *312* for *k=1* and *231* for *k=2*. Print *Yes* if the given condition is satisfied else print *No*.**Examples:**

Input:x = 123Output :Yes

The k-cyclic shifts of 123 are 312 for k=1 and 231 for k=2.

Both 312 and 231 are greater than 123.Input:2214Output:No

The k-cyclic shift of 2214 when k=2 is 1422 which is smaller than 2214

**Approach:** Simply find all the possible k cyclic shifts of the number and check if all are greater than the given number or not.

Below is the implementation of the above approach:

## PHP

`<?php` `// PHP implementation of the approach` ` ` `function` `CheckKCycles(` `$n` `, ` `$s` `) ` `{` ` ` `$ff` `= true;` ` ` `$x` `= 0;` ` ` `for` `(` `$i` `= 1; ` `$i` `< ` `$n` `; ` `$i` `++) ` ` ` `{` ` ` ` ` `// Splitting the number at index i ` ` ` `// and adding to the front ` ` ` `$x` `= ` `strlen` `(` `substr` `(` `$s` `, ` `$i` `).` `substr` `(` `$s` `, 0, ` `$i` `));` ` ` ` ` `// Checking if the value is greater than ` ` ` `// or equal to the given value ` ` ` `if` `(` `$x` `>= ` `strlen` `(` `$s` `)) ` ` ` `{` ` ` `continue` `;` ` ` `}` ` ` `$ff` `= false;` ` ` `break` `;` ` ` `}` ` ` `if` `(` `$ff` `) ` ` ` `{` ` ` `print` `(` `"Yes"` `);` ` ` `}` ` ` `else` ` ` `{` ` ` `print` `(` `"No"` `);` ` ` `}` `}` ` ` `// Driver code` `$n` `= 3;` `$s` `= ` `"123"` `;` `CheckKCycles(` `$n` `, ` `$s` `);` ` ` `// This code contributed by mits ` `?>` |

**Output:**

Yes

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