How to eliminate unnecessary zero digits from decimals using PHP?

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You can use the rtrim() function in PHP to eliminate unnecessary zero digits from decimals. The rtrim() function removes whitespace or other characters from the end of a string.

Here's an example:

$number = 12.3400; $number = rtrim($number, '0'); echo $number; // Output: 12.34

In this example, the rtrim() function removes the trailing zeros from the decimal number 12.3400, resulting in the output of 12.34.