3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** * マルチバイト文字列、英数字の混じった文字列を1文字ずつ配列に分割 * 参考:http://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q1417635014# * mb_split, str_split, preg_splitことごとく使えない。 */ function mbStringToArray($string, $encoding = 'UTF-8') { $arrayResult = array(); while ($iLen = mb_strlen($string, $encoding)) { array_push($arrayResult, mb_substr($string, 0, 1, $encoding)); $string = mb_substr($string, 1, $iLen, $encoding); } return $arrayResult; } /** * 編集距離(レーベンシュタイン距離)を求める(マルチバイト文字対応) * @param $str1 * @param $str2 * @param $encoding * @param $costReplace * @return 数値(距離),かぶっていた文字の数 */ function LevenshteinDistance($str1, $str2, $costReplace = 2, $encoding = 'UTF-8') { $count_same_letter = 0; $d = array(); $mb_len1 = mb_strlen($str1, $encoding); $mb_len2 = mb_strlen($str2, $encoding); $mb_str1 = mbStringToArray($str1, $encoding); $mb_str2 = mbStringToArray($str2, $encoding); for ($i1 = 0; $i1 <= $mb_len1; $i1++) { $d[$i1] = array(); $d[$i1][0] = $i1; } for ($i2 = 0; $i2 <= $mb_len2; $i2++) { $d[0][$i2] = $i2; } for ($i1 = 1; $i1 <= $mb_len1; $i1++) { for ($i2 = 1; $i2 <= $mb_len2; $i2++) { $cost = ($str1[$i1 - 1] == $str2[$i2 - 1]) ? 0 : 1; if ($mb_str1[$i1 - 1] === $mb_str2[$i2 - 1]) { $cost = 0; $count_same_letter++; } else { $cost = $costReplace; //置換 } $d[$i1][$i2] = min($d[$i1 - 1][$i2] + 1, //挿入 $d[$i1][$i2 - 1] + 1, //削除 $d[$i1 - 1][$i2 - 1] + $cost); } } return $d[$mb_len1][$mb_len2]; //return array('distance' => $d[$mb_len1][$mb_len2], 'count_same_letter' => $count_same_letter); } echo LevenshteinDistance("こんにちは","こんにちわ",1,"UTF-8"); ?>

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).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.40.0040.01818.79
8.3.30.0100.00319.01
8.3.20.0050.00320.16
8.3.10.0000.00823.66
8.3.00.0050.00322.54
8.2.170.0180.00422.96
8.2.160.0140.00022.05
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00420.66
8.2.110.0070.00319.34
8.2.100.0040.00717.91
8.2.90.0040.00419.21
8.2.80.0050.00317.97
8.2.70.0040.00417.63
8.2.60.0050.00318.05
8.2.50.0080.00018.07
8.2.40.0000.00818.22
8.2.30.0040.00418.16
8.2.20.0000.00817.75
8.2.10.0030.00517.76
8.2.00.0020.00517.61
8.1.270.0030.00523.76
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00021.35
8.1.230.0080.00317.52
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0090.00017.36
8.1.180.0000.00818.10
8.1.170.0030.00618.51
8.1.160.0040.00422.02
8.1.150.0000.00718.70
8.1.140.0000.00817.52
8.1.130.0030.00317.83
8.1.120.0000.00717.47
8.1.110.0080.00017.35
8.1.100.0050.00217.40
8.1.90.0100.00017.39
8.1.80.0040.00417.46
8.1.70.0030.00317.34
8.1.60.0040.00417.69
8.1.50.0060.00317.50
8.1.40.0080.00017.48
8.1.30.0040.00517.71
8.1.20.0090.00017.64
8.1.10.0030.00517.66
8.1.00.0040.00417.61
8.0.300.0040.00418.77
8.0.290.0000.00916.88
8.0.280.0000.00718.54
8.0.270.0040.00417.33
8.0.260.0060.00016.81
8.0.250.0000.00617.07
8.0.240.0030.00317.05
8.0.230.0040.00416.94
8.0.220.0030.00316.81
8.0.210.0040.00716.87
8.0.200.0000.00816.86
8.0.190.0000.00716.86
8.0.180.0040.00416.86
8.0.170.0030.00616.81
8.0.160.0000.00716.87
8.0.150.0070.00016.76
8.0.140.0020.00516.95
8.0.130.0000.00513.33
8.0.120.0040.00416.76
8.0.110.0000.00716.89
8.0.100.0000.00816.92
8.0.90.0000.00816.88
8.0.80.0030.01217.01
8.0.70.0050.00316.97
8.0.60.0050.00216.93
8.0.50.0000.00716.87
8.0.30.0110.01017.18
8.0.20.0120.00817.40
8.0.10.0040.00417.02
8.0.00.0100.00816.81
7.4.330.0060.00015.02
7.4.320.0000.00716.57
7.4.300.0000.00716.63
7.4.290.0030.00316.64
7.4.280.0000.00716.50
7.4.270.0000.00716.60
7.4.260.0000.01016.51
7.4.250.0000.00816.57
7.4.240.0070.00016.53
7.4.230.0080.00016.34
7.4.220.0060.01016.73
7.4.210.0090.00716.52
7.4.200.0050.00216.66
7.4.190.0030.00316.48
7.4.160.0060.01216.25
7.4.150.0060.01317.40
7.4.140.0090.00917.86
7.4.130.0150.00516.53
7.4.120.0080.01016.50
7.4.110.0120.00616.49
7.4.100.0120.00616.50
7.4.90.0110.00716.50
7.4.80.0160.00616.49
7.4.70.0070.01116.61
7.4.60.0090.00916.37
7.4.50.0030.00316.73
7.4.40.0070.01122.77
7.4.30.0040.01116.55
7.4.00.0030.01015.21
7.3.330.0000.00513.42
7.3.320.0000.00613.38
7.3.310.0040.00416.28
7.3.300.0030.00316.39
7.3.290.0100.00516.35
7.3.280.0090.01016.38
7.3.270.0120.00917.40
7.3.260.0090.00916.37
7.3.250.0090.01216.48
7.3.240.0130.00316.35
7.3.230.0090.01416.61
7.3.210.0030.01516.37
7.3.200.0110.00719.39
7.3.190.0060.01216.67
7.3.180.0030.01716.41
7.3.170.0070.01016.42
7.3.160.0060.01016.61
7.3.120.0100.00715.10
7.3.10.0070.01016.64
7.3.00.0030.01016.45
7.2.330.0070.01016.54
7.2.320.0080.01116.82
7.2.310.0030.01416.46
7.2.300.0160.00016.37
7.2.290.0070.01016.45
7.2.130.0070.00416.88
7.2.120.0120.00616.85
7.2.110.0070.01116.60
7.2.100.0000.01416.55
7.2.90.0070.00816.79
7.2.80.0100.00716.85
7.2.70.0090.01316.67
7.2.60.0100.01116.71
7.2.50.0130.00916.88
7.2.40.0130.01316.88
7.2.30.0120.00616.81
7.2.20.0200.00616.32
7.2.10.0100.01416.74
7.2.00.0120.00618.23
7.1.250.0090.00615.36
7.1.200.0030.00815.63
7.1.100.0040.00718.34
7.1.70.0110.00717.05
7.1.60.0110.01419.29
7.1.50.0070.01717.08
7.1.00.0070.07322.27
7.0.200.0060.00616.56
7.0.140.0070.07022.10
7.0.60.0130.06319.94
7.0.50.0100.04017.90
7.0.40.0100.03720.27
7.0.30.0170.08320.06
7.0.20.0230.03720.09
7.0.10.0200.04020.28
7.0.00.0030.08020.22
5.6.280.0070.07021.14
5.6.210.0030.05720.68
5.6.200.0070.05318.18
5.6.190.0030.08320.47
5.6.180.0400.05720.41
5.6.170.0230.08020.70
5.6.160.0100.06720.54
5.6.150.0000.04718.13
5.6.140.0030.06318.19
5.6.130.0070.08718.17
5.6.120.0130.07321.02
5.6.110.0100.08021.05
5.6.100.0030.08721.12
5.6.90.0070.06721.05
5.6.80.0130.08320.39
5.6.70.0330.07320.38
5.5.350.0030.07720.50
5.5.340.0130.07318.09
5.5.330.0000.04320.43
5.5.320.0070.08320.32
5.5.310.0300.07320.35
5.5.300.0070.08317.94
5.5.290.0130.06717.94
5.5.280.0070.05720.79
5.5.270.0100.08720.74
5.5.260.0170.07320.81
5.5.250.0030.08720.63
5.5.240.0000.06320.36
5.4.450.0630.05319.52
5.4.440.0070.06319.70
5.4.430.0270.06719.48
5.4.420.0200.05019.38
5.4.410.0100.05318.93
5.4.400.0130.05018.63
5.4.390.0170.06318.75
5.4.380.0200.06718.84
5.4.370.0170.05318.78
5.4.360.0200.06018.61
5.4.350.0100.06018.51
5.4.340.0300.05718.59
5.4.320.0090.03512.52
5.4.310.0030.04312.51
5.4.300.0070.04312.51
5.4.290.0060.03712.51
5.4.280.0080.04412.38
5.4.270.0100.05912.38
5.4.260.0070.05812.38
5.4.250.0120.06112.38
5.4.240.0100.05412.38
5.4.230.0090.06612.37
5.4.220.0100.06112.37
5.4.210.0090.03812.37
5.4.200.0140.03612.37
5.4.190.0100.03712.37
5.4.180.0130.03412.36
5.4.170.0100.04012.38
5.4.160.0070.04412.37
5.4.150.0100.06012.37
5.4.140.0080.04312.05
5.4.130.0110.04312.04
5.4.120.0150.06111.99
5.4.110.0210.07511.99
5.4.100.0080.04912.00
5.4.90.0120.03711.99
5.4.80.0130.05212.00
5.4.70.0120.05411.98
5.4.60.0100.05011.99
5.4.50.0130.06211.99
5.4.40.0130.06211.98
5.4.30.0100.05311.97
5.4.20.0120.06011.97
5.4.10.0120.05411.97
5.4.00.0100.07311.46
5.3.290.0070.03712.80
5.3.280.0050.06712.71
5.3.270.0100.06412.72
5.3.260.0120.05412.72
5.3.250.0170.07012.72
5.3.240.0110.05812.72
5.3.230.0090.05212.71
5.3.220.0120.05812.68
5.3.210.0110.05712.68
5.3.200.0120.04012.68
5.3.190.0120.03812.68
5.3.180.0080.04012.68
5.3.170.0120.03712.67
5.3.160.0080.04212.67
5.3.150.0100.04112.67
5.3.140.0100.04612.66
5.3.130.0060.04712.66
5.3.120.0110.04112.66
5.3.110.0090.04212.66
5.3.100.0110.04112.12
5.3.90.0100.04012.09
5.3.80.0120.03912.08
5.3.70.0200.08412.08
5.3.60.0090.04112.07
5.3.50.0080.05312.02
5.3.40.0120.04912.01
5.3.30.0120.03411.97
5.3.20.0120.03711.76
5.3.10.0110.03711.71
5.3.00.0150.05511.71
5.2.170.0070.0349.21
5.2.160.0070.0339.21
5.2.150.0080.0389.21
5.2.140.0100.0489.20
5.2.130.0240.0609.16
5.2.120.0110.0469.16
5.2.110.0140.0649.18
5.2.100.0120.0349.17
5.2.90.0190.0439.16
5.2.80.0110.0359.16
5.2.70.0140.0399.16
5.2.60.0140.0699.12
5.2.50.0190.0759.09
5.2.40.0150.0399.07
5.2.30.0120.0339.04
5.2.20.0230.0739.03
5.2.10.0120.0398.94
5.2.00.0080.0318.80
5.1.60.0080.0278.09
5.1.50.0050.0328.09
5.1.40.0130.0368.07
5.1.30.0020.0358.42
5.1.20.0050.0318.44
5.1.10.0080.0348.17
5.1.00.0160.0508.18
5.0.50.0220.0456.66
5.0.40.0180.0496.52
5.0.30.0050.0466.33
5.0.20.0100.0296.29
5.0.10.0080.0326.27
5.0.00.0090.0366.27
4.4.90.0080.0204.78
4.4.80.0040.0224.75
4.4.70.0060.0264.75
4.4.60.0060.0224.76
4.4.50.0040.0224.77
4.4.40.0060.0404.70
4.4.30.0000.0284.76
4.4.20.0080.0404.85
4.4.10.0020.0264.85
4.4.00.0060.0464.76
4.3.110.0000.0264.67
4.3.100.0030.0234.66
4.3.90.0030.0154.64
4.3.80.0020.0264.58
4.3.70.0030.0194.63
4.3.60.0050.0214.63
4.3.50.0050.0344.63
4.3.40.0040.0384.54
4.3.30.0020.0373.33
4.3.20.0040.0283.31
4.3.10.0030.0223.27
4.3.00.0070.02013.64

preferences:
42.1 ms | 400 KiB | 5 Q