Online PHP editor | perf for jv8vc

@ 2019-02-14T11:23:09Z

<?php

function text2num($s) {
    // Enhanced the regex at http://www.rexegg.com/regex-trick-numbers-in-english.html#english-number-regex
    $reg = <<<REGEX
    (?x)           # free-spacing mode
    (?(DEFINE)
      # Within this DEFINE block, we'll define many subroutines
      # They build on each other like lego until we can define
      # a "big number"

      (?<one_to_9>  
      # The basic regex:
      # one|two|three|four|five|six|seven|eight|nine
      # We'll use an optimized version:
      # Option 1: four|eight|(?:fiv|(?:ni|o)n)e|t(?:wo|hree)|
      #                                          s(?:ix|even)
      # Option 2:
      (?:f(?:ive|our)|s(?:even|ix)|t(?:hree|wo)|(?:ni|o)ne|eight)
      ) # end one_to_9 definition

      (?<ten_to_19>  
      # The basic regex:
      # ten|eleven|twelve|thirteen|fourteen|fifteen|sixteen|seventeen|
      #                                              eighteen|nineteen
      # We'll use an optimized version:
      # Option 1: twelve|(?:(?:elev|t)e|(?:fif|eigh|nine|(?:thi|fou)r|
      #                                             s(?:ix|even))tee)n
      # Option 2:
      (?:(?:(?:s(?:even|ix)|f(?:our|if)|nine)te|e(?:ighte|lev))en|
                                              t(?:(?:hirte)?en|welve)) 
      ) # end ten_to_19 definition

      (?<two_digit_prefix>
      # The basic regex:
      # twenty|thirty|forty|fifty|sixty|seventy|eighty|ninety
      # We'll use an optimized version:
      # Option 1: (?:fif|six|eigh|nine|(?:tw|sev)en|(?:thi|fo)r)ty
      # Option 2:
      (?:s(?:even|ix)|t(?:hir|wen)|f(?:if|or)|eigh|nine)ty
      ) # end two_digit_prefix definition

      (?<one_to_99>
      (?&two_digit_prefix)(?:[- ](?&one_to_9))?|(?&ten_to_19)|
                                                  (?&one_to_9)
      ) # end one_to_99 definition

      (?<one_to_999>
      (?&one_to_9)[ ]hundred(?:[ ](?:and[ ])?(?&one_to_99))?|
                                                (?&one_to_99)
      ) # end one_to_999 definition

      (?<one_to_999_999>
      (?&one_to_999)[ ]thousand(?:[ ](?&one_to_999))?|
                                        (?&one_to_999)
      ) # end one_to_999_999 definition

      (?<one_to_999_999_999>
      (?&one_to_999)[ ]million(?:[ ](?&one_to_999_999))?|
                                       (?&one_to_999_999)
      ) # end one_to_999_999_999 definition

      (?<one_to_999_999_999_999>
      (?&one_to_999)[ ]billion(?:[ ](?&one_to_999_999_999))?|
                                       (?&one_to_999_999_999)
      ) # end one_to_999_999_999_999 definition

      (?<one_to_999_999_999_999_999>
      (?&one_to_999)[ ]trillion(?:[ ](?&one_to_999_999_999_999))?|
                                        (?&one_to_999_999_999_999)
      ) # end one_to_999_999_999_999_999 definition
      #  ==== MORE ====
      (?<one_to_quadrillion>
      (?&one_to_999)[ ]quadrillion(?:[ ](?&one_to_999_999_999_999_999))?|
                                        (?&one_to_999_999_999_999_999)
      ) # end one_to_quadrillion definition
      (?<one_to_quintillion>
      (?&one_to_999)[ ]quintillion(?:[ ](?&one_to_quadrillion))?|
                                        (?&one_to_quadrillion)
      ) # end one_to_quintillion definition
      (?<one_to_sextillion>
      (?&one_to_999)[ ]sextillion(?:[ ](?&one_to_quintillion))?|
                                        (?&one_to_quintillion)
      ) # end one_to_sextillion definition
      (?<one_to_septillion>
      (?&one_to_999)[ ]septillion(?:[ ](?&one_to_sextillion))?|
                                        (?&one_to_sextillion)
      ) # end one_to_septillion definition
      (?<one_to_octillion>
      (?&one_to_999)[ ]octillion(?:[ ](?&one_to_septillion))?|
                                        (?&one_to_septillion)
      ) # end one_to_octillion definition
      (?<one_to_nonillion>
      (?&one_to_999)[ ]nonillion(?:[ ](?&one_to_octillion))?|
                                        (?&one_to_octillion)
      ) # end one_to_nonillion definition
      (?<one_to_decillion>
      (?&one_to_999)[ ]decillion(?:[ ](?&one_to_nonillion))?|
                                        (?&one_to_nonillion)
      ) # end one_to_decillion definition

      (?<bignumber>
      zero|(?&one_to_decillion)
      ) # end bignumber definition

      (?<zero_to_9>
      (?&one_to_9)|zero
      ) # end zero to 9 definition

      # (?<decimals>
      # point(?:[ ](?&zero_to_9))+
      # ) # end decimals definition

    ) # End DEFINE


    ####### The Regex Matching Starts Here ########
    \b(?:(?&ten_to_19)\s+hundred|(?&bignumber))\b
REGEX;
    return preg_replace_callback('~' . trim($reg) . '~i', function ($x) {
        return text2num_internal($x[0]);
    }, $s);
}
function text2num_internal($s) {
    // Port of https://github.com/ghewgill/text2num/blob/master/text2num.py
    $Small = [
        'zero'=> 0,
        'one'=> 1,
        'two'=> 2,
        'three'=> 3,
        'four'=> 4,
        'five'=> 5,
        'six'=> 6,
        'seven'=> 7,
        'eight'=> 8,
        'nine'=> 9,
        'ten'=> 10,
        'eleven'=> 11,
        'twelve'=> 12,
        'thirteen'=> 13,
        'fourteen'=> 14,
        'fifteen'=> 15,
        'sixteen'=> 16,
        'seventeen'=> 17,
        'eighteen'=> 18,
        'nineteen'=> 19,
        'twenty'=> 20,
        'thirty'=> 30,
        'forty'=> 40,
        'fifty'=> 50,
        'sixty'=> 60,
        'seventy'=> 70,
        'eighty'=> 80,
        'ninety'=> 90
    ];

    $Magnitude = [
        'thousand'=>     1000,
        'million'=>      1000000,
        'billion'=>      1000000000,
        'trillion'=>     1000000000000,
        'quadrillion'=>  1000000000000000,
        'quintillion'=>  1000000000000000000,
        'sextillion'=>   1000000000000000000000,
        'septillion'=>   1000000000000000000000000,
        'octillion'=>    1000000000000000000000000000,
        'nonillion'=>    1000000000000000000000000000000,
        'decillion'=>    1000000000000000000000000000000000,
    ];


    $a = preg_split("~[\s-]+(?:and[\s-]+)?~u", $s);
    $a = array_map('strtolower', $a);
    $n = 0;
    $g = 0;
    foreach ($a as $w) {  #  for w in a
        if (isset($Small[$w])) { 
            $g = $g + $Small[$w];
        }
        else if ($w == "hundred" && $g != 0) {
            $g = $g * 100;
        }
        else {
            $x = $Magnitude[$w];
            if (strlen($x) > 0) {
                $n =$n + $g * $x;
                $g = 0;
            }
            else{
                throw new Exception("Unknown number: " . $w);
            }
        }
    }
    return $n + $g;
}

echo text2num("one") . "\n";  // 1 
echo text2num("twelve") . "\n"; // 12 
echo text2num("seventy two") . "\n"; // 72 
echo text2num("three hundred") . "\n"; // 300
echo text2num("twelve hundred") . "\n"; // 1200
echo text2num("twelve thousand three hundred four") . "\n"; // 12304
echo text2num("six million") . "\n"; // 6000000
echo text2num("six million four hundred thousand five") . "\n"; // 6400005
echo text2num("one hundred twenty three billion four hundred fifty six million seven hundred eighty nine thousand twelve") . "\n"; # // 123456789012 
echo text2num("four decillion") . "\n"; // 4000000000000000000000000000000000
echo text2num("five hundred and thirty-seven") . "\n"; // 537
echo text2num("five hundred and thirty seven") . "\n"; // 537

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)
8.4.12	0.013	0.009	24.37
8.4.11	0.013	0.008	19.09
8.4.10	0.011	0.011	18.27
8.4.9	0.011	0.011	20.79
8.4.8	0.014	0.009	19.23
8.4.7	0.005	0.004	24.21
8.4.6	0.012	0.010	20.46
8.4.5	0.013	0.007	18.90
8.4.4	0.014	0.007	19.63
8.4.3	0.010	0.010	17.77
8.4.2	0.014	0.003	20.45
8.4.1	0.009	0.000	19.95
8.3.25	0.010	0.011	19.07
8.3.24	0.011	0.010	17.38
8.3.23	0.011	0.009	17.01
8.3.22	0.009	0.011	19.06
8.3.21	0.014	0.009	17.01
8.3.20	0.004	0.005	16.89
8.3.19	0.006	0.002	18.98
8.3.18	0.012	0.008	19.18
8.3.17	0.012	0.003	17.30
8.3.16	0.013	0.007	18.64
8.3.15	0.017	0.003	21.05
8.3.14	0.003	0.006	17.73
8.3.13	0.004	0.004	18.48
8.3.12	0.003	0.006	19.28
8.3.11	0.011	0.000	20.94
8.3.10	0.016	0.003	18.55
8.3.9	0.005	0.005	26.77
8.3.8	0.007	0.003	17.13
8.3.7	0.017	0.003	17.00
8.3.6	0.008	0.008	18.56
8.3.5	0.014	0.004	17.80
8.3.4	0.012	0.003	19.47
8.3.3	0.012	0.004	19.02
8.3.2	0.008	0.000	21.85
8.3.1	0.009	0.000	19.06
8.3.0	0.004	0.004	19.76
8.2.29	0.010	0.009	17.23
8.2.28	0.013	0.008	18.73
8.2.27	0.012	0.008	16.95
8.2.26	0.015	0.004	17.67
8.2.25	0.008	0.000	17.23
8.2.24	0.010	0.010	19.11
8.2.23	0.003	0.006	22.58
8.2.22	0.009	0.000	37.54
8.2.21	0.008	0.000	26.77
8.2.20	0.009	0.000	18.54
8.2.19	0.000	0.015	17.13
8.2.18	0.007	0.011	25.92
8.2.17	0.013	0.006	19.34
8.2.16	0.000	0.014	22.96
8.2.15	0.005	0.003	24.18
8.2.14	0.006	0.003	24.66
8.2.13	0.003	0.006	26.16
8.2.12	0.006	0.003	21.13
8.2.11	0.008	0.004	21.21
8.2.10	0.008	0.004	18.29
8.2.9	0.009	0.000	18.41
8.2.8	0.003	0.006	19.25
8.2.7	0.010	0.000	17.88
8.2.6	0.009	0.003	18.18
8.2.5	0.003	0.006	18.07
8.2.4	0.008	0.000	18.60
8.2.3	0.000	0.008	18.35
8.2.2	0.005	0.003	18.36
8.2.1	0.000	0.009	19.76
8.2.0	0.004	0.004	18.27
8.1.33	0.012	0.008	22.30
8.1.32	0.008	0.012	18.28
8.1.31	0.003	0.016	16.74
8.1.30	0.010	0.006	20.47
8.1.29	0.003	0.007	30.84
8.1.28	0.000	0.015	25.92
8.1.27	0.006	0.009	22.44
8.1.26	0.003	0.006	26.35
8.1.25	0.008	0.000	28.09
8.1.24	0.003	0.007	19.51
8.1.23	0.009	0.003	21.16
8.1.22	0.006	0.003	18.04
8.1.21	0.000	0.008	20.26
8.1.20	0.007	0.003	17.85
8.1.19	0.000	0.008	17.72
8.1.18	0.004	0.004	18.10
8.1.17	0.000	0.008	19.09
8.1.16	0.005	0.003	19.04
8.1.15	0.004	0.004	19.23
8.1.14	0.000	0.007	20.38
8.1.13	0.004	0.004	20.50
8.1.12	0.000	0.008	17.83
8.1.11	0.003	0.006	17.77
8.1.10	0.003	0.005	17.76
8.1.9	0.004	0.007	17.82
8.1.8	0.004	0.004	17.72
8.1.7	0.000	0.008	17.84
8.1.6	0.000	0.010	17.91
8.1.5	0.000	0.008	17.88
8.1.4	0.000	0.009	17.68
8.1.3	0.000	0.008	18.02
8.1.2	0.003	0.006	18.00
8.1.1	0.010	0.000	17.91
8.1.0	0.000	0.008	17.86
8.0.30	0.000	0.008	20.36
8.0.29	0.005	0.003	16.88
8.0.28	0.000	0.008	18.67
8.0.27	0.004	0.004	17.43
8.0.26	0.005	0.002	20.31
8.0.25	0.004	0.004	17.25
8.0.24	0.004	0.004	17.26
8.0.23	0.004	0.004	17.32
8.0.22	0.000	0.007	17.32
8.0.21	0.000	0.007	17.28
8.0.20	0.004	0.004	17.32
8.0.19	0.004	0.004	17.23
8.0.18	0.005	0.003	17.32
8.0.17	0.003	0.006	17.20
8.0.16	0.004	0.007	17.36
8.0.15	0.000	0.008	17.33
8.0.14	0.000	0.008	17.09
8.0.13	0.002	0.005	13.69
8.0.12	0.000	0.008	17.39
8.0.11	0.009	0.000	17.37
8.0.10	0.004	0.004	17.18
8.0.9	0.006	0.003	17.43
8.0.8	0.010	0.013	17.42
8.0.7	0.005	0.003	17.41
8.0.6	0.004	0.004	17.34
8.0.5	0.006	0.003	17.39
8.0.3	0.016	0.004	17.47
8.0.2	0.018	0.004	17.41
8.0.1	0.003	0.005	17.34
8.0.0	0.011	0.009	17.04
7.4.33	0.000	0.005	15.55
7.4.32	0.004	0.004	16.88
7.4.30	0.000	0.008	17.03
7.4.29	0.000	0.008	16.96
7.4.28	0.003	0.005	17.01
7.4.27	0.003	0.007	17.07
7.4.26	0.004	0.004	16.99
7.4.25	0.004	0.004	16.83
7.4.24	0.004	0.004	16.99
7.4.23	0.000	0.008	16.81
7.4.22	0.000	0.008	16.84
7.4.21	0.006	0.013	17.00
7.4.20	0.004	0.004	17.03
7.4.16	0.009	0.010	16.88
7.4.14	0.012	0.009	17.86
7.4.13	0.007	0.011	17.11
7.4.12	0.006	0.012	16.78
7.4.11	0.010	0.010	17.10
7.4.10	0.012	0.006	17.11
7.4.9	0.004	0.014	16.88
7.4.8	0.014	0.005	19.39
7.4.7	0.006	0.013	17.07
7.4.6	0.010	0.010	16.74
7.4.5	0.009	0.005	16.75
7.4.4	0.007	0.013	16.93
7.4.1	0.010	0.010	15.29
7.4.0	0.008	0.009	15.27
7.3.33	0.000	0.006	13.52
7.3.32	0.003	0.003	13.81
7.3.31	0.005	0.003	16.67
7.3.30	0.004	0.004	16.64
7.3.29	0.003	0.005	16.78
7.3.28	0.006	0.010	16.76
7.3.26	0.011	0.011	16.79
7.3.24	0.012	0.007	16.87
7.3.23	0.007	0.011	16.89
7.3.21	0.007	0.011	16.80
7.3.20	0.008	0.012	16.91
7.3.19	0.011	0.007	16.80
7.3.18	0.014	0.010	16.80
7.3.17	0.006	0.013	16.77
7.3.16	0.009	0.009	16.85
7.3.13	0.005	0.014	15.16
7.3.12	0.008	0.009	15.18
7.3.11	0.007	0.010	15.24
7.3.10	0.004	0.011	15.30
7.3.9	0.007	0.010	15.22
7.3.8	0.006	0.006	15.09
7.3.7	0.008	0.007	15.28
7.3.6	0.008	0.006	15.14
7.3.5	0.007	0.006	15.22
7.3.4	0.010	0.007	15.03
7.3.3	0.007	0.009	15.10
7.3.2	0.008	0.007	17.03
7.3.1	0.008	0.005	16.91
7.3.0	0.003	0.011	16.82
7.2.33	0.006	0.012	17.03
7.2.32	0.006	0.016	16.95
7.2.31	0.010	0.010	16.84
7.2.30	0.004	0.015	17.05
7.2.29	0.009	0.015	17.13
7.2.26	0.008	0.012	15.41
7.2.25	0.004	0.015	15.39
7.2.24	0.006	0.011	15.41
7.2.23	0.006	0.011	15.45
7.2.22	0.005	0.010	15.47
7.2.21	0.006	0.007	15.44
7.2.20	0.008	0.005	15.53
7.2.19	0.005	0.009	15.45
7.2.18	0.010	0.004	15.32
7.2.17	0.010	0.007	15.24
7.2.16	0.006	0.009	15.29
7.2.15	0.007	0.008	17.12
7.2.14	0.007	0.009	17.06
7.2.13	0.006	0.008	17.07
7.2.12	0.010	0.004	17.16
7.2.11	0.006	0.009	17.09
7.2.10	0.006	0.007	17.15
7.2.9	0.008	0.006	17.15
7.2.8	0.005	0.017	17.20
7.2.7	0.003	0.011	17.13
7.2.6	0.007	0.005	17.17
7.2.5	0.002	0.016	17.27
7.2.4	0.010	0.006	17.14
7.2.3	0.009	0.004	17.21
7.2.2	0.009	0.009	17.25
7.2.1	0.009	0.006	17.18
7.2.0	0.005	0.010	17.17
7.1.33	0.006	0.009	16.08
7.1.32	0.009	0.008	16.07
7.1.31	0.010	0.008	16.24
7.1.30	0.006	0.009	15.93
7.1.29	0.007	0.007	16.08
7.1.28	0.011	0.003	15.96
7.1.27	0.008	0.006	16.06
7.1.26	0.005	0.009	16.03
7.1.25	0.007	0.007	16.05
7.1.24	0.004	0.008	16.06
7.1.23	0.005	0.009	15.93
7.1.22	0.010	0.005	15.92
7.1.21	0.008	0.007	16.09
7.1.20	0.005	0.012	16.04
7.1.19	0.005	0.011	16.13
7.1.18	0.003	0.009	16.11
7.1.17	0.006	0.009	15.96
7.1.16	0.004	0.007	16.00
7.1.15	0.006	0.008	15.98
7.1.14	0.005	0.009	15.94
7.1.13	0.004	0.012	16.15
7.1.12	0.006	0.009	16.17
7.1.11	0.006	0.006	16.19
7.1.10	0.005	0.009	16.15
7.1.9	0.002	0.012	16.06
7.1.8	0.006	0.007	16.17
7.1.7	0.007	0.003	16.06
7.1.6	0.002	0.010	15.96
7.1.5	0.009	0.003	15.99
7.1.4	0.010	0.006	15.88
7.1.3	0.005	0.012	16.08
7.1.2	0.003	0.011	16.00
7.1.1	0.008	0.006	15.89
7.1.0	0.005	0.009	16.04

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