Online PHP editor | perf for bmURG

@ 2014-02-28T16:19:48Z

<?php

class Punycode
{
    private function decodeUtf8Character($input, $i, &$codePoint = null)
    {
        $input = array_values(unpack('C*', substr($input, $i, 4)));
        $count = count($input);

        switch (true) {
            case $count >= 2 && ($input[0] & 0xE0) === 0xC0 && ($input[1] & 0xC0) === 0x80:
                $codePoint = (($input[0] & 0x1F) << 6) | ($input[1] & 0x3F);
                return 2;

            case $count >= 3 && ($input[0] & 0xF0) === 0xE0 && (($input[1] ^ 0x40) & ($input[2] ^ 0x40) & 0xC0) === 0xC0:
                $codePoint = (($input[0] & 0x0F) << 12) | (($input[1] & 0x3F) << 6) | ($input[2] & 0x3F);
                return 3;

            case $count >= 4 && ($input[0] & 0xF8) === 0xF0 && (($input[1] ^ 0x40) & ($input[2] ^ 0x40) & ($input[3] ^ 0x40) & 0xC0) === 0xC0:
                $codePoint = (($input[0] & 0x07) << 18) | (($input[1] & 0x3F) << 12) | (($input[2] & 0x3F) << 6) | ($input[3] & 0x3F);
                return 4;
        }

        return 0;
    }

    private function encodeUtf8CodePoint($codePoint)
    {
        switch (true) {
            case $codePoint < 0x80:
                return pack('C*', $codePoint & 0x7F);

            case $codePoint < 0x0800:
                return pack('C*', (($codePoint & 0x07C0) >> 6) | 0xC0, ($codePoint & 0x3F) | 0x80);

            case $codePoint < 0x010000:
                return pack('C*', (($codePoint & 0xF000) >> 12) | 0xE0, (($codePoint & 0x0FC0) >> 6) | 0x80, ($codePoint & 0x3F) | 0x80);

            case $codePoint < 0x110000:
                return pack('C*', (($codePoint & 0x1C0000) >> 18) | 0xF0, (($codePoint & 0x03F000) >> 12) | 0x80, (($codePoint & 0x0FC0) >> 6) | 0x80, ($codePoint & 0x3F) | 0x80);
        }

        return false;
    }

    private function isDnsLabelChar($charCode)
    {
        return ($charCode >= 0x61 && $charCode <= 0x7A)  // lower-case letter
            || ($charCode >= 0x30 && $charCode <= 0x39)  // digit
            || $charCode === 0x2D                        // -
            || ($charCode >= 0x41 && $charCode <= 0x5A); // upper-case letter;
    }

    private function isPrintableLatin1Char($charCode)
    {
        return $charCode >= 0xA0;
    }

    private function getEncodingParts($input, &$output = [], &$nonBasicChars = [])
    {
        $isUtf8 = true;

        for ($i = $p = 0, $l = strlen($input); $i < $l; $p++) {
            $charCode = ord($input[$i]);

            if ($charCode & 0x80) {
                if ($isUtf8) {
                    if ($len = $this->decodeUtf8Character($input, $i, $codePoint)) {
                        $nonBasicChars[] = [$p, $codePoint, substr($input, $i, $len), $len]; // undecoded data is stored for UTF-8 chars to facilitate conversion to latin1 if necessary
                        $i += $len;
                    } else {
                        // not a valid UTF-8 code point, convert $nonBasicChars to latin1 representation
                        if (!$this->isPrintableLatin1Char($charCode)) {
                            return false;
                        }

                        $isUtf8 = false;

                        if (!empty($nonBasicChars)) {
                            $offset = 0;

                            for ($j = 0, $l = count($nonBasicChars); $j < $l; $j++) {
                                $base = $nonBasicChars[$j][0];
                                $nonBasicChars[$j][0] += $offset;
                                $nonBasicChars[$j][1] = ord($nonBasicChars[$j][2][0]);

                                for ($k = 1; $k < $nonBasicChars[$j][3]; $k++) {
                                    $nonBasicChars[] = [$base + ++$offset, ord($nonBasicChars[$j][2][$k])];
                                }
                            }

                            $nonBasicChars[] = [$i++, $charCode];

                            usort($nonBasicChars, function($a, $b) {
                                return $a[0] - $b[0];
                            });
                        } else {
                            $nonBasicChars[] = [$i++, $charCode];
                        }
                    }
                } else if ($this->isPrintableLatin1Char($charCode)) {
                    $nonBasicChars[] = [$i++, $charCode];
                } else {
                    return false;
                }
            } else if ($this->isDnsLabelChar($charCode)) {
                $output[] = $input[$i++];
            } else {
                return false;
            }
        }

        return true;
    }

    private function adaptBias($delta, $numPoints, $first)
    {
        $delta = $first ? $delta / 700 : $delta / 2;
        $delta += $delta / $numPoints;

        for ($k = 0; $delta > 455; $k += 36) {
            $delta = (int)($delta / 35);
        }

        return $k + (36 * $delta) / ($delta + 38);
    }

    private function decodeLabel($input)
    {
        if (substr($input, 0, 4) !== 'xn--') {
            return $input;
        }
        $input = substr($input, 4);

        if (false !== $nonBasicCharsStart = strrpos($input, '-')) {
            $output = str_split(substr($input, 0, $nonBasicCharsStart), 1);
            $nonBasicChars = substr($input, $nonBasicCharsStart + 1);
        } else {
            $output = [];
            $nonBasicChars = $input;
        }

        $n = 128;
        $i = 0;
        $bias = 72;

        for ($j = 0, $l = strlen($nonBasicChars); $j < $l; $i++) {
            $oldi = $i;
            $w = 1;
            $k = 36;

            while (true) {
                if (!isset($nonBasicChars[$j])) {
                    return false;
                }

                $digit = ord($nonBasicChars[$j++]);

                if ($digit >= 0x61 && $digit <= 0x7A) {
                    $digit -= 97;
                } else if ($digit >= 0x30 && $digit <= 0x39) {
                    $digit -= 22;
                } else {
                    return false;
                }

                $i += $digit * $w;

                if ($k <= $bias) {
                    $t = 1;
                } else if ($k >= $bias + 26) {
                    $t = 26;
                } else {
                    $t = $k - $bias;
                }

                if ($digit < $t) {
                    break;
                }

                $w *= (int) (36 - $t);
                $k += 36;
            }

            $c = count($output) + 1;

            $bias = $this->adaptBias($i - $oldi, $c, $oldi === 0);
            $n += (int)($i / $c);
            $i %= $c;

            array_splice($output, $i, 0, array($this->encodeUtf8CodePoint($n)));
        }

        return implode('', $output);
    }

    private function encodeLabel($input)
    {
        if (!$this->getEncodingParts($input, $output, $nonBasicChars)) {
            return false;
        }

        if (empty($nonBasicChars)) {
            return $input;
        }

        $output = 'xn--' . $output;
    }

    public function decode($input)
    {
        $output = [];

        foreach (explode('.', strtolower($input)) as $label) {
            if (false === $label = $this->decodeLabel($label)) {
                return false;
            }

            $output[] = $label;
        }

        return implode('.', $output);
    }

    public function encode($input)
    {
        $output = [];

        foreach (explode('.', strtolower($input)) as $label) {
            if (false === $label = $this->encodeLabel($label)) {
                return false;
            }

            $output[] = $label;
        }

        return implode('.', $output);
    }
}

echo (new Punycode)->decode("xn---with-SUPER-MONKEYS-pc58ag80a8qai00g7n9n");

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.3.6	0.006	0.013	16.37
8.3.5	0.016	0.005	16.68
8.3.4	0.013	0.006	18.97
8.3.3	0.007	0.007	18.74
8.3.2	0.006	0.006	18.82
8.3.1	0.006	0.003	20.36
8.3.0	0.004	0.004	19.27
8.2.18	0.009	0.006	16.75
8.2.17	0.007	0.007	22.96
8.2.16	0.006	0.009	21.10
8.2.15	0.000	0.008	24.18
8.2.14	0.006	0.003	24.66
8.2.13	0.007	0.000	26.16
8.2.12	0.008	0.000	21.06
8.2.11	0.003	0.007	20.52
8.2.10	0.003	0.009	18.03
8.2.9	0.003	0.005	19.22
8.2.8	0.003	0.006	19.49
8.2.7	0.003	0.005	17.75
8.2.6	0.008	0.000	17.80
8.2.5	0.004	0.004	18.07
8.2.4	0.000	0.008	18.34
8.2.3	0.007	0.004	18.22
8.2.2	0.008	0.000	17.89
8.2.1	0.000	0.008	17.78
8.2.0	0.003	0.005	17.96
8.1.28	0.006	0.009	25.92
8.1.27	0.004	0.004	24.66
8.1.26	0.004	0.004	26.35
8.1.25	0.009	0.000	28.09
8.1.24	0.009	0.000	23.62
8.1.23	0.009	0.003	23.98
8.1.22	0.006	0.003	18.77
8.1.21	0.000	0.008	19.07
8.1.20	0.004	0.004	17.48
8.1.19	0.000	0.008	17.53
8.1.18	0.003	0.007	18.10
8.1.17	0.005	0.003	18.97
8.1.16	0.004	0.004	18.90
8.1.15	0.003	0.006	18.79
8.1.14	0.003	0.006	17.51
8.1.13	0.003	0.003	17.86
8.1.12	0.007	0.000	17.48
8.1.11	0.000	0.008	17.63
8.1.10	0.004	0.004	17.61
8.1.9	0.000	0.008	17.55
8.1.8	0.000	0.007	17.44
8.1.7	0.005	0.003	17.56
8.1.6	0.000	0.009	17.71
8.1.5	0.004	0.004	17.59
8.1.4	0.003	0.006	17.62
8.1.3	0.008	0.000	17.64
8.1.2	0.008	0.000	17.67
8.1.1	0.004	0.004	17.70
8.1.0	0.006	0.006	17.53
8.0.30	0.003	0.006	19.97
8.0.29	0.000	0.008	17.00
8.0.28	0.008	0.000	18.46
8.0.27	0.004	0.004	17.44
8.0.26	0.007	0.000	17.05
8.0.25	0.004	0.004	17.15
8.0.24	0.000	0.008	17.15
8.0.23	0.003	0.003	17.08
8.0.22	0.000	0.007	17.02
8.0.21	0.003	0.006	16.99
8.0.20	0.003	0.003	17.11
8.0.19	0.005	0.003	17.12
8.0.18	0.003	0.005	17.07
8.0.17	0.006	0.003	16.99
8.0.16	0.004	0.004	17.11
8.0.15	0.000	0.008	17.09
8.0.14	0.004	0.004	17.04
8.0.13	0.006	0.000	13.46
8.0.12	0.005	0.003	17.03
8.0.11	0.007	0.003	16.88
8.0.10	0.004	0.004	17.05
8.0.9	0.006	0.003	17.06
8.0.8	0.003	0.013	16.96
8.0.7	0.004	0.004	17.02
8.0.6	0.004	0.004	16.94
8.0.5	0.003	0.005	17.12
8.0.3	0.010	0.013	17.24
8.0.2	0.019	0.027	17.46
8.0.1	0.000	0.008	17.04
8.0.0	0.009	0.016	16.95
7.4.33	0.000	0.005	13.08
7.4.32	0.006	0.000	16.70
7.4.30	0.007	0.000	16.72
7.4.29	0.003	0.003	16.75
7.4.28	0.000	0.007	16.61
7.4.27	0.004	0.004	16.52
7.4.26	0.003	0.003	13.40
7.4.25	0.000	0.009	16.50
7.4.24	0.004	0.004	16.70
7.4.23	0.003	0.003	16.64
7.4.22	0.003	0.013	16.53
7.4.21	0.010	0.007	16.70
7.4.20	0.004	0.004	16.52
7.4.19	0.000	0.007	16.88
7.4.16	0.013	0.003	16.53
7.4.15	0.007	0.011	16.75
7.4.14	0.015	0.011	16.60
7.4.13	0.008	0.010	16.68
7.4.12	0.011	0.006	16.62
7.4.11	0.007	0.010	16.69
7.4.10	0.016	0.003	16.65
7.4.9	0.017	0.003	16.61
7.4.8	0.013	0.006	19.39
7.4.7	0.013	0.003	16.61
7.4.6	0.016	0.006	16.54
7.4.5	0.003	0.009	16.60
7.4.4	0.008	0.008	16.63
7.4.3	0.010	0.007	16.58
7.4.0	0.003	0.012	15.22
7.3.33	0.000	0.006	13.56
7.3.32	0.005	0.000	13.38
7.3.31	0.007	0.000	16.54
7.3.30	0.008	0.000	16.54
7.3.29	0.000	0.014	16.54
7.3.28	0.011	0.004	16.50
7.3.27	0.015	0.004	16.67
7.3.26	0.017	0.000	16.45
7.3.25	0.007	0.011	16.64
7.3.24	0.011	0.011	16.78
7.3.23	0.010	0.006	16.63
7.3.21	0.007	0.010	16.39
7.3.20	0.011	0.006	16.84
7.3.19	0.010	0.009	16.67
7.3.18	0.013	0.003	16.45
7.3.17	0.012	0.004	16.45
7.3.16	0.004	0.014	16.74
7.3.12	0.007	0.007	15.02
7.2.33	0.012	0.006	16.88
7.2.32	0.013	0.010	16.75
7.2.31	0.003	0.016	16.73
7.2.30	0.015	0.009	16.89
7.2.29	0.010	0.006	16.89
7.2.6	0.003	0.013	16.82
7.2.0	0.000	0.016	19.39
7.1.20	0.000	0.010	15.86
7.1.10	0.009	0.003	17.87
7.1.7	0.000	0.011	16.79
7.1.6	0.014	0.011	19.40
7.1.5	0.006	0.016	16.68
7.1.0	0.000	0.067	22.55
7.0.20	0.003	0.005	16.78
7.0.14	0.003	0.077	22.00
7.0.12	0.007	0.070	22.15
7.0.10	0.013	0.057	20.00
7.0.9	0.037	0.073	19.98
7.0.8	0.010	0.077	19.94
7.0.7	0.033	0.053	19.95
7.0.6	0.023	0.050	19.79
7.0.5	0.013	0.080	20.41
7.0.4	0.010	0.080	19.95
7.0.3	0.023	0.050	20.00
7.0.2	0.007	0.067	19.87
7.0.1	0.003	0.050	20.09
7.0.0	0.010	0.083	19.98
5.6.28	0.000	0.077	20.95
5.6.25	0.003	0.090	20.54
5.6.24	0.007	0.080	20.70
5.6.23	0.003	0.080	20.67
5.6.22	0.007	0.063	20.55
5.6.21	0.003	0.083	20.75
5.6.20	0.000	0.087	21.18
5.6.19	0.007	0.043	21.06
5.6.18	0.010	0.053	21.06
5.6.17	0.013	0.083	21.14
5.6.16	0.007	0.050	21.04
5.6.15	0.013	0.073	21.09
5.6.14	0.007	0.087	21.05
5.6.13	0.003	0.087	21.14
5.6.12	0.003	0.090	21.05
5.6.11	0.010	0.080	21.18
5.6.10	0.020	0.070	20.94
5.6.9	0.010	0.067	21.16
5.6.8	0.003	0.043	20.48
5.6.7	0.017	0.070	20.36
5.6.6	0.007	0.080	20.55
5.6.5	0.010	0.080	20.50
5.6.4	0.020	0.063	20.48
5.6.3	0.007	0.040	20.43
5.6.2	0.007	0.080	20.50
5.6.1	0.003	0.077	20.31
5.6.0	0.007	0.067	20.38
5.5.38	0.017	0.067	20.36
5.5.37	0.017	0.077	20.36
5.5.36	0.020	0.067	20.39
5.5.35	0.010	0.073	20.48
5.5.34	0.013	0.070	20.81
5.5.33	0.003	0.087	20.92
5.5.32	0.007	0.083	20.90
5.5.31	0.010	0.077	20.74
5.5.30	0.007	0.087	20.81
5.5.29	0.000	0.090	20.89
5.5.28	0.010	0.073	20.81
5.5.27	0.003	0.053	20.84
5.5.26	0.013	0.080	20.64
5.5.25	0.003	0.083	20.73
5.5.24	0.020	0.067	20.23
5.5.23	0.003	0.083	20.31
5.5.22	0.013	0.050	20.31
5.5.21	0.007	0.083	20.29
5.5.20	0.003	0.083	20.00
5.5.19	0.000	0.083	20.22
5.5.18	0.003	0.083	20.20
5.5.16	0.010	0.080	20.27
5.5.15	0.020	0.060	20.15
5.5.14	0.003	0.087	20.21
5.5.13	0.013	0.073	20.11
5.5.12	0.013	0.053	20.13
5.5.11	0.003	0.077	20.28
5.5.10	0.010	0.077	20.05
5.5.9	0.010	0.077	20.18
5.5.8	0.000	0.080	20.08
5.5.7	0.007	0.080	20.04
5.5.6	0.007	0.073	20.11
5.5.5	0.010	0.077	20.13
5.5.4	0.007	0.077	20.07
5.5.3	0.017	0.067	20.04
5.5.2	0.003	0.080	20.05
5.5.1	0.007	0.070	19.98
5.5.0	0.010	0.077	20.04
5.4.45	0.013	0.080	19.21
5.4.44	0.003	0.090	19.37
5.4.43	0.010	0.070	19.46
5.4.42	0.003	0.087	19.45
5.4.41	0.020	0.067	19.29
5.4.40	0.007	0.053	18.88
5.4.39	0.007	0.077	19.09
5.4.38	0.000	0.080	19.21
5.4.37	0.003	0.053	19.16
5.4.36	0.003	0.083	18.88
5.4.35	0.010	0.077	18.90
5.4.34	0.010	0.073	18.95
5.4.32	0.007	0.057	19.04
5.4.31	0.000	0.070	19.16
5.4.30	0.013	0.067	19.04
5.4.29	0.007	0.080	19.21
5.4.28	0.003	0.077	19.05
5.4.27	0.010	0.073	19.13
5.4.26	0.017	0.063	19.00
5.4.25	0.013	0.067	19.03
5.4.24	0.010	0.040	19.18
5.4.23	0.007	0.077	18.89
5.4.22	0.007	0.057	19.12
5.4.21	0.003	0.077	19.21
5.4.20	0.017	0.067	19.12
5.4.19	0.010	0.053	19.22
5.4.18	0.007	0.080	19.06
5.4.17	0.010	0.083	19.04
5.4.16	0.013	0.060	19.12
5.4.15	0.000	0.057	19.03
5.4.14	0.017	0.047	16.20
5.4.13	0.003	0.053	16.44
5.4.12	0.000	0.050	16.43
5.4.11	0.010	0.057	16.53
5.4.10	0.000	0.060	16.57
5.4.9	0.007	0.033	16.55
5.4.8	0.007	0.033	16.41
5.4.7	0.003	0.033	16.54
5.4.6	0.000	0.037	16.39
5.4.5	0.003	0.033	16.39
5.4.4	0.007	0.050	16.50
5.4.3	0.010	0.057	16.54
5.4.2	0.007	0.030	16.39
5.4.1	0.010	0.043	16.42
5.4.0	0.003	0.037	15.86
5.3.29	0.003	0.073	14.77
5.3.28	0.003	0.063	14.77
5.3.27	0.017	0.067	14.75
5.3.26	0.003	0.053	14.71
5.3.25	0.003	0.047	14.71
5.3.24	0.010	0.040	14.62
5.3.23	0.010	0.040	14.66
5.3.22	0.000	0.047	14.67
5.3.21	0.000	0.040	14.71
5.3.20	0.000	0.040	14.66
5.3.19	0.000	0.043	14.60
5.3.18	0.007	0.033	14.68
5.3.17	0.003	0.037	14.63
5.3.16	0.007	0.033	14.52
5.3.15	0.003	0.037	14.59
5.3.14	0.007	0.033	14.60
5.3.13	0.007	0.030	14.65
5.3.12	0.000	0.043	14.52
5.3.11	0.003	0.057	14.63
5.3.10	0.000	0.040	14.18
5.3.9	0.003	0.037	14.15
5.3.8	0.010	0.043	14.06
5.3.7	0.000	0.040	14.04
5.3.6	0.007	0.043	14.17
5.3.5	0.000	0.040	13.98
5.3.4	0.010	0.030	13.89
5.3.3	0.003	0.037	14.01
5.3.2	0.000	0.037	13.84
5.3.1	0.000	0.037	13.63
5.3.0	0.003	0.037	13.76

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