Online PHP editor | refs for o58KM

<?php function scientific2decimal($num, $decimal_separator = ".", $thousands_separator = ",") { if (!preg_match('!\d+(\.(\d+))?e([+-]?)(\d+)$!i', $num, $matches)) { return $num; } list(,,$decimals, $sign, $exponent) = $matches; $sign = $sign ?: "+"; $actual_decimals = strlen($decimals); if ($sign === '+') { $number_of_decimals = max(0, $actual_decimals - $exponent); } else { $number_of_decimals = $exponent + $actual_decimals; } return number_format($num, $number_of_decimals, $decimal_separator, $thousands_separator); } function number2decimal($number, $decimal_separator = ".", $thousands_separator = ",") { if (!is_numeric($number)) { return $number; } $parts = explode('e', strtolower($number)); if (count($parts) != 2) { return $number; } [$base, $exponent] = $parts; $number_of_decimals = -$exponent + strlen($base) - strrpos($base, '.') - 1; return number_format($number, $number_of_decimals, $decimal_separator, $thousands_separator); } $test = [ 'aaa', 'eee', '123ert', 7, 1e0, 0.000021, '1e3', '1.1337228E-3', '1.1337228E-6', '236.234e-5', '1.0002E3', '1.13372223434E+6', '2.133333E-5', 123456789842794767576576, ]; foreach ($test as $num) { echo $num, ": ", scientific2decimal($num), "\n"; } echo "=============\n"; foreach ($test as $num) { echo $num, ": ", number2decimal($num), "\n"; }