Question

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Default Number of Decimal Places to Output in PHP

basically a bit of a maths problem,

$average_ppm = $total_points_given / $totalvalue;

$average_ppm now equals 2.432608695652174, I don’t want to display these numbers, I just need $average_ppm to be 2.43, so to a fixed 2 decimal points. How can I do this??

Thanks for anyones time.

Answer 1

Use sprintf if you want a string output, or round/floor/ceil for a numeric value:

$average_ppm = 2.432608695652174;

echo sprintf("%.2f", $average_ppm); // 2.43

$approx_average_ppm = round($average_ppm, 2);
echo $approx_average_ppm; // 2.43

echo floor($average_ppm, 2); // 2.43 , even if $average_ppm = 2.439
echo ceil($average_ppm, 2); // 2.44