Online PHP editor | perf for 575vQ

@ 2014-02-25T17:05:12Z

<?php

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

        if ($count >= 2 && ($input[0] & 0xE0) === 0xC0 && ($input[1] & 0xC0) === 0x80) {
            $codePoint = (($input[0] & 0x1F) << 6) | ($input[1] & 0x3F);
            return 2;
        } else if ($count >= 3 && ($input[0] & 0xF0) === 0xE0 && ($input[1] & 0xC0) === 0x80 && ($input[2] & 0xC0) === 0x80) {
            $codePoint = (($input[0] & 0x0F) << 12) | (($input[1] & 0x3F) << 6) | ($input[2] & 0x3F);
            return 3;
        } else if ($count >= 4 && ($input[0] & 0xF8) === 0xF0 && ($input[1] & 0xC0) === 0x80 && ($input[2] & 0xC0) === 0x80 && ($input[3] & 0xC0) === 0x80) {
            $codePoint = (($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 $ord < 0x010000:
                return pack('C*', (($codePoint & 0xF000) >> 12) | 0xE0, (($codePoint & 0x0FC0) >> 6) | 0x80, ($codePoint & 0x3F) | 0x80);

            case $ord < 0x110000:
                return pack('C*', (($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 decodeDigit($digit)
    {
        if ($digit >= 0x61 && $digit <= 0x7A) {
            return $digit - 0x61;
        } else if ($digit >= 0x30 && $digit <= 0x39) {
            return $digit - 22;
        }

        return false;
    }

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

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

    }

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

        for ($k = 0; $delta > 455; $k += 36) {
            $delta = intval($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, '-')) {
            $nonBasicChars = substr($input, $nonBasicCharsStart + 1);
            $output = str_split(substr($input, 0, $nonBasicCharsStart), 1);
        } else {
            $nonBasicChars = $input;
            $output = [];
        }

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

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

            do {
                if (false === $digit = $this->decodeDigit(ord($nonBasicChars[$j++]))) {
                    return false;
                }

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

                $i += $digit * $w;
                $w *= 36 - $t;

                $k += 36;
            } while($digit >= $t);

            $c = count($output) + 1;
            $bias = $this->adaptBias($i - $oldi, count($output) + 1, $oldi === 0);
            $n += (int) ($i / $c);
            $i %= $c;

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

            $i++;
        }

        return implode('', $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--tst-qla.de");

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	0.007	0.011	16.63
8.3.5	0.012	0.007	21.27
8.3.4	0.010	0.006	18.88
8.3.3	0.004	0.011	19.05
8.3.2	0.000	0.008	20.07
8.3.1	0.005	0.003	21.95
8.3.0	0.003	0.006	22.37
8.2.18	0.007	0.011	18.29
8.2.17	0.007	0.007	22.96
8.2.16	0.007	0.007	20.51
8.2.15	0.012	0.004	24.18
8.2.14	0.004	0.004	24.66
8.2.13	0.012	0.006	26.16
8.2.12	0.008	0.000	19.78
8.2.11	0.011	0.007	21.18
8.2.10	0.006	0.006	17.97
8.2.9	0.003	0.005	19.47
8.2.8	0.009	0.000	17.97
8.2.7	0.004	0.004	17.63
8.2.6	0.003	0.005	18.05
8.2.5	0.000	0.009	18.07
8.2.4	0.007	0.004	18.22
8.2.3	0.004	0.004	18.21
8.2.2	0.005	0.003	17.85
8.2.1	0.003	0.005	17.73
8.2.0	0.003	0.005	17.88
8.1.28	0.017	0.003	25.92
8.1.27	0.004	0.004	20.52
8.1.26	0.004	0.004	26.35
8.1.25	0.008	0.000	28.09
8.1.24	0.010	0.000	22.32
8.1.23	0.013	0.000	18.98
8.1.22	0.004	0.004	17.91
8.1.21	0.000	0.008	18.77
8.1.20	0.006	0.003	17.25
8.1.19	0.004	0.004	17.52
8.1.18	0.000	0.008	18.74
8.1.17	0.003	0.006	18.58
8.1.16	0.000	0.007	22.24
8.1.15	0.004	0.004	18.66
8.1.14	0.008	0.000	17.43
8.1.13	0.007	0.004	17.97
8.1.12	0.004	0.004	17.60
8.1.11	0.003	0.005	17.59
8.1.10	0.003	0.005	17.47
8.1.9	0.004	0.004	17.52
8.1.8	0.004	0.004	17.51
8.1.7	0.003	0.003	17.46
8.1.6	0.010	0.000	17.67
8.1.5	0.003	0.005	17.62
8.1.4	0.003	0.005	17.50
8.1.3	0.005	0.003	17.75
8.1.2	0.000	0.008	17.58
8.1.1	0.000	0.009	17.67
8.1.0	0.000	0.008	17.46
8.0.30	0.008	0.000	18.77
8.0.29	0.004	0.004	16.75
8.0.28	0.000	0.007	18.48
8.0.27	0.004	0.004	17.24
8.0.26	0.005	0.003	16.99
8.0.25	0.007	0.000	17.09
8.0.24	0.002	0.005	17.12
8.0.23	0.000	0.008	17.07
8.0.22	0.004	0.004	16.99
8.0.21	0.003	0.003	16.88
8.0.20	0.007	0.003	17.07
8.0.19	0.000	0.009	17.12
8.0.18	0.000	0.007	17.05
8.0.17	0.004	0.004	16.97
8.0.16	0.000	0.007	17.01
8.0.15	0.004	0.004	16.87
8.0.14	0.003	0.005	16.81
8.0.13	0.003	0.004	13.36
8.0.12	0.004	0.004	17.00
8.0.11	0.003	0.005	16.86
8.0.10	0.004	0.004	17.04
8.0.9	0.003	0.005	16.98
8.0.8	0.004	0.011	16.99
8.0.7	0.006	0.003	17.02
8.0.6	0.005	0.003	16.98
8.0.5	0.003	0.005	16.94
8.0.3	0.013	0.006	17.27
8.0.2	0.010	0.009	17.40
8.0.1	0.005	0.002	16.95
8.0.0	0.012	0.006	17.00
7.4.33	0.002	0.002	15.00
7.4.32	0.004	0.004	16.71
7.4.30	0.004	0.004	16.59
7.4.29	0.004	0.004	16.67
7.4.28	0.003	0.003	16.60
7.4.27	0.003	0.003	16.66
7.4.26	0.004	0.004	16.70
7.4.25	0.005	0.002	16.64
7.4.24	0.002	0.006	16.64
7.4.23	0.000	0.007	16.51
7.4.22	0.014	0.015	16.71
7.4.21	0.009	0.008	16.71
7.4.20	0.003	0.005	16.51
7.4.19	0.007	0.000	16.85
7.4.16	0.006	0.010	16.81
7.4.15	0.009	0.015	17.40
7.4.14	0.008	0.012	17.86
7.4.13	0.007	0.010	16.62
7.4.12	0.010	0.010	16.65
7.4.11	0.009	0.009	16.64
7.4.10	0.012	0.006	16.72
7.4.9	0.010	0.007	16.57
7.4.8	0.011	0.015	19.39
7.4.7	0.017	0.000	16.60
7.4.6	0.010	0.007	16.69
7.4.5	0.003	0.003	16.64
7.4.4	0.005	0.005	22.77
7.4.3	0.003	0.014	16.48
7.4.0	0.009	0.006	15.01
7.3.33	0.000	0.005	13.44
7.3.32	0.005	0.000	13.46
7.3.31	0.003	0.003	16.37
7.3.30	0.007	0.000	16.47
7.3.29	0.008	0.008	16.46
7.3.28	0.007	0.010	16.47
7.3.27	0.009	0.009	17.40
7.3.26	0.014	0.007	16.67
7.3.25	0.013	0.007	16.62
7.3.24	0.007	0.014	16.38
7.3.23	0.008	0.018	16.46
7.3.21	0.011	0.008	16.77
7.3.20	0.007	0.010	19.39
7.3.19	0.003	0.015	16.56
7.3.18	0.012	0.006	16.54
7.3.17	0.009	0.013	16.59
7.3.16	0.009	0.006	16.50
7.3.12	0.004	0.014	15.05
7.2.33	0.012	0.006	16.79
7.2.32	0.012	0.007	16.66
7.2.31	0.011	0.007	16.68
7.2.30	0.012	0.006	16.54
7.2.29	0.005	0.011	16.61
7.2.0	0.003	0.010	19.54
7.1.10	0.003	0.009	18.19
7.1.7	0.006	0.009	16.85
7.1.6	0.012	0.012	19.82
7.1.5	0.014	0.007	16.84
7.1.0	0.000	0.037	22.48
7.0.20	0.005	0.005	16.84
7.0.14	0.000	0.067	22.09
7.0.10	0.030	0.070	20.01
7.0.9	0.010	0.073	20.26
7.0.8	0.037	0.047	20.05
7.0.7	0.020	0.063	19.98
7.0.6	0.013	0.067	19.88
7.0.5	0.003	0.073	20.43
7.0.4	0.000	0.050	20.02
7.0.3	0.000	0.053	20.00
7.0.2	0.010	0.060	20.03
7.0.1	0.013	0.077	20.09
7.0.0	0.007	0.060	20.07
5.6.28	0.007	0.070	21.08
5.6.25	0.010	0.053	20.65
5.6.24	0.010	0.060	20.69
5.6.23	0.003	0.053	20.68
5.6.22	0.003	0.070	20.69
5.6.21	0.007	0.077	20.71
5.6.20	0.003	0.053	20.99
5.6.19	0.010	0.080	21.14
5.6.18	0.007	0.050	21.12
5.6.17	0.007	0.090	21.17
5.6.16	0.003	0.070	21.14
5.6.15	0.010	0.057	21.02
5.6.14	0.013	0.063	21.07
5.6.13	0.013	0.037	21.07
5.6.12	0.003	0.067	21.11
5.6.11	0.013	0.040	21.11
5.6.10	0.003	0.050	21.12
5.6.9	0.000	0.050	21.04
5.6.8	0.000	0.040	20.41
5.6.7	0.010	0.040	20.40
5.6.6	0.003	0.047	20.48
5.6.5	0.000	0.037	20.38
5.6.4	0.010	0.027	20.43
5.6.3	0.007	0.033	20.44
5.6.2	0.003	0.043	20.48
5.6.1	0.010	0.067	20.46
5.6.0	0.000	0.037	20.50
5.5.38	0.003	0.073	20.42
5.5.37	0.010	0.077	20.41
5.5.36	0.010	0.077	20.48
5.5.35	0.013	0.060	20.48
5.5.34	0.007	0.080	20.89
5.5.33	0.010	0.070	20.97
5.5.32	0.007	0.077	20.95
5.5.31	0.010	0.080	20.92
5.5.30	0.010	0.077	20.69
5.5.29	0.017	0.043	20.88
5.5.28	0.000	0.047	20.96
5.5.27	0.013	0.063	20.93
5.5.26	0.013	0.047	20.85
5.5.25	0.003	0.067	20.79
5.5.24	0.003	0.043	20.34
5.5.23	0.000	0.050	20.21
5.5.22	0.007	0.037	20.22
5.5.21	0.003	0.040	20.32
5.5.20	0.010	0.033	20.29
5.5.19	0.007	0.030	20.27
5.5.18	0.003	0.043	20.05
5.5.16	0.003	0.033	20.16
5.5.15	0.003	0.033	20.27
5.5.14	0.010	0.050	20.27
5.5.13	0.000	0.037	20.20
5.5.12	0.000	0.043	20.30
5.5.11	0.007	0.037	20.23
5.5.10	0.007	0.040	20.04
5.5.9	0.007	0.033	20.15
5.5.8	0.000	0.043	20.26
5.5.7	0.003	0.040	20.14
5.5.6	0.007	0.033	20.21
5.5.5	0.013	0.067	20.21
5.5.4	0.007	0.040	20.11
5.5.3	0.000	0.040	20.15
5.5.2	0.003	0.040	20.21
5.5.1	0.010	0.037	20.08
5.5.0	0.000	0.037	20.09
5.4.45	0.007	0.040	19.45
5.4.44	0.007	0.083	19.27
5.4.43	0.007	0.080	19.45
5.4.42	0.010	0.057	19.37
5.4.41	0.010	0.040	19.32
5.4.40	0.007	0.047	19.23
5.4.39	0.003	0.043	18.95
5.4.38	0.013	0.030	19.21
5.4.37	0.000	0.037	18.88
5.4.36	0.013	0.033	19.05
5.4.35	0.003	0.037	19.03
5.4.34	0.007	0.030	19.04
5.4.32	0.000	0.043	19.05
5.4.31	0.000	0.040	18.95
5.4.30	0.000	0.040	19.09
5.4.29	0.013	0.027	19.23
5.4.28	0.010	0.040	19.08
5.4.27	0.007	0.033	19.14
5.4.26	0.003	0.040	19.05
5.4.25	0.003	0.040	18.84
5.4.24	0.000	0.033	19.24
5.4.23	0.000	0.033	19.04
5.4.22	0.007	0.057	19.02
5.4.21	0.003	0.037	18.88
5.4.20	0.010	0.030	19.02
5.4.19	0.000	0.040	19.02
5.4.18	0.003	0.040	19.13
5.4.17	0.003	0.037	19.20
5.4.16	0.007	0.037	19.19
5.4.15	0.000	0.043	19.10
5.4.14	0.003	0.037	16.54
5.4.13	0.007	0.037	16.47
5.4.12	0.003	0.040	16.31
5.4.11	0.000	0.040	16.56
5.4.10	0.003	0.037	16.49
5.4.9	0.000	0.040	16.54
5.4.8	0.007	0.027	16.52
5.4.7	0.007	0.030	16.47
5.4.6	0.013	0.027	16.54
5.4.5	0.003	0.080	16.38
5.4.4	0.010	0.037	16.51
5.4.3	0.003	0.077	16.46
5.4.2	0.010	0.050	16.47
5.4.1	0.007	0.037	16.37
5.4.0	0.017	0.060	16.00
5.3.29	0.003	0.050	14.71
5.3.28	0.003	0.033	14.55
5.3.27	0.007	0.077	14.61
5.3.26	0.007	0.030	14.64
5.3.25	0.003	0.030	14.66
5.3.24	0.003	0.033	14.67
5.3.23	0.007	0.033	14.60
5.3.22	0.000	0.037	14.59
5.3.21	0.003	0.037	14.66
5.3.20	0.003	0.037	14.67
5.3.19	0.003	0.037	14.72
5.3.18	0.007	0.047	14.68
5.3.17	0.007	0.037	14.70
5.3.16	0.003	0.077	14.66
5.3.15	0.017	0.067	14.66
5.3.14	0.017	0.063	14.72
5.3.13	0.003	0.080	14.68
5.3.12	0.007	0.077	14.63
5.3.11	0.003	0.040	14.72
5.3.10	0.000	0.050	14.08
5.3.9	0.007	0.063	14.16
5.3.8	0.003	0.080	13.98
5.3.7	0.000	0.073	14.14
5.3.6	0.010	0.063	14.14
5.3.5	0.007	0.037	14.03
5.3.4	0.003	0.070	14.00
5.3.3	0.000	0.037	13.95
5.3.2	0.003	0.060	13.75
5.3.1	0.003	0.067	13.57
5.3.0	0.007	0.073	13.76

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