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We can eliminate extraneous zero digits from decimals using PHP by using the number_format() function with the trim parameter set to true. This function formats a number with grouped thousands and sets the number of decimals. Here's an example:
$num = 10.5000;
$formatted_num = number_format($num, 2, '.', true);
echo $formatted_num; // Output: 10.5
In this example, we are formatting a number with 2 decimal places and the trim parameter set to true. This removes any trailing zero digits after the decimal point. We can use this function to eliminate any extraneous zero digits from decimals.