3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(encodeFloat(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; }
based on 3iFaO
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught Error: Using $this when not in object context in /in/9G9cX:10 Stack trace: #0 /in/9G9cX(2): encodeFloat(1.1234567890123, 13) #1 {main} thrown in /in/9G9cX on line 10
Process exited with code 255.
Output for 5.3.18 - 5.6.28
Fatal error: Using $this when not in object context in /in/9G9cX on line 10
Process exited with code 255.