Online PHP editor | output for 3iFaO

<?php var_dump(encode_float(1.1234567890123456, 13)); function encodeFloat($float, $precision) { $precision = max(1, (int) $precision); $log = (int) floor(log(abs($float), 10)); if (abs($float) < 9007199254740992.0 && $log > -5 && abs($log) < $precision) { return $this->formatFloat($float, $precision - $log - 1); } // Deal with overflow that results from rounding $log += (int) (round(abs($float) / pow(10, $log), $precision - 1) / 10); $string = $this->formatFloat($float / pow(10, $log), $precision - 1); return sprintf('%sE%+d', $string, $log); } function formatFloat($float, $digits) { $digits = max((int) $digits, 1); $string = rtrim(number_format($float, $digits, '.', ''), '0'); return substr($string, -1) === '.' ? $string . '0' : $string; }