How to print the number in reverse order in PHP?

In this program, you’ll learn to reverse a number using a while loop.

Logic:

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. 3.
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 + 3 = 3.
4. $num is then divided by 10 so that now it only contains first two digits: 12.
5. After second iteration, $rem equals 2, $rev equals 3 * 10 + 2 = 32 and $num = 1.
6. After third iteration, $rem equals 2, $rev equals 32 * 10 + 1 = 321 and $num = 0.
7. Now, $num will be existed outside the while loop and $rev contains 321.

Now , look at this coding

Input : 12345

Thanks

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PHP Fundamental Tutorials with Basic Demo by Chentan in 2020 – Part-1

PHP Fundamental Tutorials with Basic Demo by Chentan in 2020 – Part-2

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Usha Kiran

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