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ww",1); ?>

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)
8.3.60.0110.00416.48
8.3.50.0240.00821.95
8.3.40.0120.00319.02
8.3.30.0060.00919.07
8.3.20.0070.00020.34
8.3.10.0040.00423.48
8.3.00.0000.00822.30
8.2.180.0090.00616.38
8.2.170.0150.00022.96
8.2.160.0110.00722.05
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0050.00322.16
8.2.110.0060.00321.96
8.2.100.0080.00418.03
8.2.90.0050.00319.17
8.2.80.0030.00617.97
8.2.70.0090.00317.63
8.2.60.0080.00018.05
8.2.50.0080.00418.07
8.2.40.0000.00818.22
8.2.30.0030.00518.12
8.2.20.0000.00817.75
8.2.10.0000.00819.42
8.2.00.0050.00217.59
8.1.280.0070.01025.92
8.1.270.0060.00323.82
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0060.00324.02
8.1.230.0070.00419.01
8.1.220.0090.00017.77
8.1.210.0080.00018.77
8.1.200.0070.00317.48
8.1.190.0040.00417.53
8.1.180.0030.00618.10
8.1.170.0000.00818.45
8.1.160.0040.00421.97
8.1.150.0070.00018.64
8.1.140.0040.00417.45
8.1.130.0000.00717.77
8.1.120.0000.00717.44
8.1.110.0040.00417.36
8.1.100.0040.00417.47
8.1.90.0050.00317.46
8.1.80.0030.00317.50
8.1.70.0070.00017.37
8.1.60.0000.00817.53
8.1.50.0000.00817.63
8.1.40.0040.00417.54
8.1.30.0070.00317.64
8.1.20.0030.00617.76
8.1.10.0040.00417.54
8.1.00.0000.00717.55
8.0.300.0040.00418.77
8.0.290.0040.00417.17
8.0.280.0040.00418.50
8.0.270.0030.00317.38
8.0.260.0040.00416.95
8.0.250.0000.00716.98
8.0.240.0080.00017.04
8.0.230.0080.00016.94
8.0.220.0000.00716.94
8.0.210.0000.01016.91
8.0.200.0070.00016.85
8.0.190.0030.00516.83
8.0.180.0050.00216.94
8.0.170.0040.00416.88
8.0.160.0070.00016.91
8.0.150.0050.00316.74
8.0.140.0040.00416.83
8.0.130.0000.00513.20
8.0.120.0050.00316.85
8.0.110.0030.00516.73
8.0.100.0040.00416.85
8.0.90.0050.00317.05
8.0.80.0070.00716.94
8.0.70.0040.00416.95
8.0.60.0020.00516.85
8.0.50.0030.00516.93
8.0.30.0090.01617.21
8.0.20.0130.00617.40
8.0.10.0070.00016.97
8.0.00.0160.00816.73
7.4.330.0030.00315.00
7.4.320.0030.00316.62
7.4.300.0060.00016.62
7.4.290.0030.00716.63
7.4.280.0030.00316.52
7.4.270.0000.00916.52
7.4.260.0060.00616.51
7.4.250.0000.00716.50
7.4.240.0050.00216.58
7.4.230.0030.00316.34
7.4.220.0120.00616.54
7.4.210.0090.00616.63
7.4.200.0070.00016.61
7.4.190.0030.00316.71
7.4.160.0090.00916.56
7.4.150.0070.01117.40
7.4.140.0170.00817.86
7.4.130.0080.01116.39
7.4.120.0120.00716.54
7.4.110.0110.00816.52
7.4.100.0100.00716.46
7.4.90.0120.00616.41
7.4.80.0130.00319.37
7.4.70.0060.01016.44
7.4.60.0080.00816.63
7.4.50.0060.00316.47
7.4.40.0050.00822.77
7.4.30.0130.00416.52
7.4.00.0120.00615.02
7.3.330.0020.00213.35
7.3.320.0030.00313.39
7.3.310.0030.00316.29
7.3.300.0000.00716.41
7.3.290.0150.00016.44
7.3.280.0090.00716.37
7.3.270.0160.00517.40
7.3.260.0110.00616.44
7.3.250.0090.01416.41
7.3.240.0130.01016.60
7.3.230.0100.00716.64
7.3.210.0100.00716.41
7.3.200.0120.00319.39
7.3.190.0130.00316.35
7.3.180.0160.00016.47
7.3.170.0100.01016.66
7.3.160.0090.00616.60
7.3.120.0060.00914.97
7.3.110.0100.00814.98
7.3.100.0080.00514.91
7.3.90.0030.01315.03
7.3.80.0050.00714.86
7.3.70.0100.00514.79
7.3.60.0050.00814.79
7.3.50.0020.01214.76
7.3.40.0030.00914.85
7.3.30.0050.00514.79
7.3.20.0040.01016.70
7.3.10.0030.00916.69
7.3.00.0090.00416.85
7.2.330.0030.01616.80
7.2.320.0090.00916.73
7.2.310.0170.00716.93
7.2.300.0130.00616.82
7.2.290.0090.01216.89
7.2.250.0080.00815.13
7.2.240.0050.01415.03
7.2.230.0030.01015.04
7.2.220.0050.00714.98
7.2.210.0050.00814.92
7.2.200.0050.00815.04
7.2.190.0020.01115.11
7.2.180.0050.00815.04
7.2.170.0070.00815.01
7.2.160.0080.00415.03
7.2.150.0030.01017.26
7.2.140.0000.01216.95
7.2.130.0030.00916.75
7.2.120.0000.00816.82
7.2.110.0030.01017.09
7.2.100.0040.01116.96
7.2.90.0030.01417.07
7.2.80.0070.00916.68
7.2.70.0030.01316.67
7.2.60.0190.00916.87
7.2.50.0070.00416.98
7.2.40.0070.00716.79
7.2.30.0030.00617.07
7.2.20.0030.01016.94
7.2.10.0060.00916.96
7.2.00.0090.00616.74
7.1.330.0080.00815.77
7.1.320.0080.00715.78
7.1.310.0050.00715.86
7.1.300.0010.00815.68
7.1.290.0040.00715.81
7.1.280.0030.01015.72
7.1.270.0050.00715.60
7.1.260.0040.00815.66
7.1.250.0090.00315.72
7.1.200.0040.00715.52
7.1.70.0040.00417.04
7.1.60.0060.01919.29
7.1.50.0090.00917.13
7.1.00.0070.07322.31
7.0.200.0130.00316.41
7.0.140.0000.07322.12
7.0.60.0100.07719.94
7.0.50.0030.04717.86
7.0.40.0170.06320.24
7.0.30.0200.05720.08
7.0.20.0200.08720.23
7.0.10.0130.05020.12
7.0.00.0070.08020.27
5.6.280.0100.06320.92
5.6.210.0070.03720.55
5.6.200.0030.08318.14
5.6.190.0070.06020.62
5.6.180.0030.07720.55
5.6.170.0230.05320.55
5.6.160.0030.09020.46
5.6.150.0100.07718.18
5.6.140.0170.07318.12
5.6.130.0130.07718.28
5.6.120.0130.06721.14
5.6.110.0170.08020.99
5.6.100.0100.06721.13
5.6.90.0170.07320.98
5.6.80.0000.08720.54
5.6.70.0430.07320.38
5.5.350.0000.03720.46
5.5.340.0100.04718.08
5.5.330.0100.08720.31
5.5.320.0000.07720.29
5.5.310.0300.08020.23
5.5.300.0030.08317.95
5.5.290.0070.07718.09
5.5.280.0100.08020.82
5.5.270.0030.04320.77
5.5.260.0170.07020.81
5.5.250.0030.04320.70
5.5.240.0130.08020.16
5.4.450.1000.05319.21
5.4.440.0600.06319.71
5.4.430.0670.06319.16
5.4.420.0700.04719.32
5.4.410.0200.07019.02
5.4.400.0070.06018.73
5.4.390.0100.07718.79
5.4.380.0070.06018.83
5.4.370.0130.06718.54
5.4.360.0230.04318.77
5.4.350.0230.04718.55
5.4.340.0100.05718.73
5.4.320.0070.03512.51
5.4.310.0030.04012.51
5.4.300.0050.03612.52
5.4.290.0050.03812.51
5.4.280.0090.07412.38
5.4.270.0220.08612.38
5.4.260.0080.06312.38
5.4.250.0280.10212.38
5.4.240.0190.07912.38
5.4.230.0160.07412.37
5.4.220.0240.07912.38
5.4.210.0080.07512.37
5.4.200.0150.06412.37
5.4.190.0120.06412.36
5.4.180.0130.08512.37
5.4.170.0120.06312.37
5.4.160.0160.05612.37
5.4.150.0250.10212.37
5.4.140.0210.08612.05
5.4.130.0120.10212.04
5.4.120.0130.05912.00
5.4.110.0170.10611.99
5.4.100.0130.11311.99
5.4.90.0410.11812.00
5.4.80.0150.08211.99
5.4.70.0200.07811.99
5.4.60.0420.12111.99
5.4.50.0140.06611.99
5.4.40.0250.06811.98
5.4.30.0230.09811.97
5.4.20.0340.11711.97
5.4.10.0160.10411.97
5.4.00.0180.09911.47
5.3.290.0060.03812.80
5.3.280.0210.11312.71
5.3.270.0070.06112.72
5.3.260.0200.07412.72
5.3.250.0270.12812.72
5.3.240.0170.09112.72
5.3.230.0250.07312.70
5.3.220.0250.09012.68
5.3.210.0160.07512.68
5.3.200.0170.08812.68
5.3.190.0170.10112.68
5.3.180.0120.06712.68
5.3.170.0200.07012.67
5.3.160.0410.09512.67
5.3.150.0130.05512.67
5.3.140.0140.06912.66
5.3.130.0300.06912.66
5.3.120.0150.07912.66
5.3.110.0370.11812.65
5.3.100.0360.05812.12
5.3.90.0090.07112.09
5.3.80.0130.06812.08
5.3.70.0180.11112.08
5.3.60.0110.09212.06
5.3.50.0210.09612.01
5.3.40.0220.09812.02
5.3.30.0240.09811.98
5.3.20.0140.04511.76
5.3.10.0140.04611.71
5.3.00.0170.05611.71
5.2.170.0080.0729.21
5.2.160.0250.1209.21
5.2.150.0090.0929.21
5.2.140.0180.1089.20
5.2.130.0170.1339.16
5.2.120.0270.1119.17
5.2.110.0090.0459.17
5.2.100.0100.0459.17
5.2.90.0130.0479.16
5.2.80.0050.0519.17
5.2.70.0110.0419.16
5.2.60.0230.1159.13
5.2.50.0060.0619.09
5.2.40.0070.0659.07
5.2.30.0150.0509.04
5.2.20.0100.0409.02
5.2.10.0050.0458.94
5.2.00.0100.0508.81
5.1.60.0070.0388.09
5.1.50.0080.0368.09
5.1.40.0070.0398.08
5.1.30.0080.0568.42
5.1.20.0090.0538.45
5.1.10.0080.0328.17
5.1.00.0170.0898.18
5.0.50.0090.0376.66
5.0.40.0040.0396.52
5.0.30.0130.0526.33
5.0.20.0140.0456.30
5.0.10.0140.0506.28
5.0.00.0140.0596.28
4.4.90.0140.0344.78
4.4.80.0030.0364.75
4.4.70.0210.0554.75
4.4.60.0140.0404.75
4.4.50.0120.0434.77
4.4.40.0180.0794.71
4.4.30.0220.0404.76
4.4.20.0240.1054.84
4.4.10.0080.0284.84
4.4.00.0090.0564.76
4.3.110.0160.0354.67
4.3.100.0070.0364.66
4.3.90.0050.0194.63
4.3.80.0070.0274.59
4.3.70.0070.0174.63
4.3.60.0030.0224.63
4.3.50.0040.0184.63
4.3.40.0110.0644.54
4.3.30.0060.0403.33
4.3.20.0080.0393.32
4.3.10.0040.0333.27
4.3.00.0030.01313.64

preferences:
38.7 ms | 401 KiB | 5 Q