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<?php $tests = [ "7.2769482308e+01", "3.43E-6", "2.54E-14", "99.87E-2" ]; foreach($tests as $test){ echo $test, " => ", getFormattedDecimal($test),PHP_EOL; } function getFormattedDecimal($str){ $precision = explode("e", strtolower($str)); $precision = substr($precision[1], 1); // remove + and - operators return sprintf("%.".$precision."f", $str); }
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
7.2769482308e+01 => 72.8 3.43E-6 => 0.000003 2.54E-14 => 0.00000000000003 99.87E-2 => 1.00
preferences:
89.13 ms | 406 KiB | 5 Q