Online PHP editor | output for 9G9cX

@ 2015-10-10T06:26:09Z

<?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;
}

Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: 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 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 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 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28: Fatal error: Using $this when not in object context in /in/9G9cX on line 10
Process exited with code 255.

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