How to Round a Number Up to the Nearest 10 in PHP?

How to round up a number to nearest 10 in PHP

When dealing with numbers, it often becomes necessary to round them off to make them easier to work with or present. Rounding a number to the nearest 10 means adjusting it to the closest multiple of 10. For instance, rounding 23 to the nearest 10 would result in 30.

In PHP, there are several ways to round a number to the nearest 10. The most straightforward approach is to use the 'round()' function:

<code class="php">$number = round($input);</code>

The 'round()' function takes a number as its argument and returns a new number that has been rounded to the nearest integer. However, 'round()' rounds numbers to the nearest whole number, not the nearest 10. To round to the nearest 10, we need to divide the number by 10, round the result, and then multiply by 10 again:

<code class="php">$number = ceil($input / 10) * 10;</code>

ceil() goes up and multiplies by 10 to reduce significant digits in order to go from the nearest integer to the nearest 10.

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