How to check the given number is either Palindrome number or not in PHP embedded in HTML? -5

How to check the given number is either Palindrome number or not in PHP?

What is the Palindrome number?

A palindrome is a word , number, phrase, verse or sentence that reads the same forward and backward.

Here , we’ll see the palindrome number:

Logic: Its logic has same like reverse number, in further we’ll check the given number and reverse number is equal or not.

1. First of all, the remainder of $num divided by 10 is stored in the variable $rem. Now, $rem contains the last digit of $num, i.e. 1.
2. $rem is then added to the variable $rev after multiplying it by 10.
3. Multiplication by 10 adds a new place in the $rev contains. $rev contain like this 0 * 10 + 1 = 1.
4. $num is then divided by 10 so that now it only contains first four digits: 1232.
5. After second iteration, $rem equals 2, $rev equals 1 * 10 + 2 = 12 and $num = 123.
6. After third iteration, $rem equals 3, $rev equals 12 * 10 + 3 = 123 and $num = 12.
7. After fourth iteration, $rem equals 2, $rev equals 123 * 10 + 2 = 1232 and $num = 1.
8. After fifth iteration, $rem equals 1, $rev equals 1232 * 10 + 1 = 12321 and $num = 0.
9. Now, $num will be existed outside the while loop and $rev contains 12321.

Now , look at this coding

The input number is: 12321

Another input is 1234:

Thanks

Usha Kiran

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