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","aこんにちは",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)
8.3.60.0070.00716.75
8.3.50.0070.00922.00
8.3.40.0110.00418.96
8.3.30.0070.00719.27
8.3.20.0040.00420.16
8.3.10.0040.00423.68
8.3.00.0080.00022.45
8.2.180.0040.01116.48
8.2.170.0090.00622.96
8.2.160.0030.01622.08
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00422.08
8.2.110.0030.00921.12
8.2.100.0080.00317.78
8.2.90.0000.00819.17
8.2.80.0000.00818.16
8.2.70.0060.00617.38
8.2.60.0040.00418.05
8.2.50.0000.00818.07
8.2.40.0030.00618.34
8.2.30.0040.00418.03
8.2.20.0080.00017.66
8.2.10.0020.00517.77
8.2.00.0080.00017.69
8.1.280.0060.00925.92
8.1.270.0040.00423.84
8.1.260.0080.00026.35
8.1.250.0020.00528.09
8.1.240.0040.00419.09
8.1.230.0040.00822.70
8.1.220.0040.00418.67
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0030.00517.66
8.1.180.0050.00318.10
8.1.170.0030.00618.50
8.1.160.0000.00822.02
8.1.150.0040.00418.57
8.1.140.0070.00017.46
8.1.130.0030.00317.75
8.1.120.0000.00717.55
8.1.110.0020.00517.36
8.1.100.0040.00417.49
8.1.90.0030.00617.37
8.1.80.0000.00817.39
8.1.70.0040.00417.44
8.1.60.0060.00317.69
8.1.50.0000.00917.44
8.1.40.0040.00417.52
8.1.30.0000.00817.70
8.1.20.0040.00417.72
8.1.10.0000.00817.68
8.1.00.0000.00817.62
8.0.300.0040.00418.77
8.0.290.0000.00717.18
8.0.280.0000.00718.49
8.0.270.0000.00817.29
8.0.260.0030.00316.89
8.0.250.0030.00316.93
8.0.240.0050.00217.00
8.0.230.0000.00716.96
8.0.220.0060.00316.78
8.0.210.0000.00916.90
8.0.200.0000.00716.99
8.0.190.0050.00317.03
8.0.180.0070.00016.90
8.0.170.0000.00916.90
8.0.160.0070.00016.91
8.0.150.0040.00416.71
8.0.140.0050.00216.87
8.0.130.0030.00313.38
8.0.120.0040.00416.77
8.0.110.0050.00216.93
8.0.100.0000.00716.85
8.0.90.0000.00717.02
8.0.80.0080.00817.00
8.0.70.0050.00316.88
8.0.60.0070.00016.86
8.0.50.0080.00017.04
8.0.30.0130.00617.24
8.0.20.0060.01217.40
8.0.10.0040.00417.01
8.0.00.0070.01516.73
7.4.330.0000.00515.15
7.4.320.0060.00016.58
7.4.300.0020.00516.61
7.4.290.0060.00316.53
7.4.280.0050.00216.61
7.4.270.0000.00816.55
7.4.260.0000.00716.61
7.4.250.0050.00316.56
7.4.240.0050.00216.54
7.4.230.0000.00816.57
7.4.220.0110.00716.39
7.4.210.0060.00816.55
7.4.200.0030.00316.43
7.4.190.0040.00416.78
7.4.160.0100.00716.71
7.4.150.0140.00717.40
7.4.140.0050.01317.86
7.4.130.0120.00516.54
7.4.120.0070.01016.69
7.4.110.0090.00916.58
7.4.100.0130.00616.53
7.4.90.0100.00716.48
7.4.80.0030.01419.39
7.4.70.0030.01516.59
7.4.60.0060.01016.55
7.4.50.0030.00516.63
7.4.40.0110.00722.77
7.4.30.0090.00616.40
7.4.00.0090.00614.88
7.3.330.0070.00013.38
7.3.320.0000.00513.19
7.3.310.0030.00316.48
7.3.300.0000.00716.20
7.3.290.0060.00916.39
7.3.280.0100.00816.37
7.3.270.0150.00317.40
7.3.260.0120.00616.31
7.3.250.0080.00916.46
7.3.240.0080.00816.57
7.3.230.0110.00816.71
7.3.210.0130.00316.47
7.3.200.0070.01519.39
7.3.190.0130.00716.72
7.3.180.0120.00316.20
7.3.170.0060.01016.40
7.3.160.0000.01616.58
7.3.120.0060.01015.16
7.3.10.0030.01116.59
7.3.00.0110.00516.70
7.2.330.0120.00616.66
7.2.320.0130.00316.71
7.2.310.0030.01316.77
7.2.300.0130.00316.42
7.2.290.0030.01616.65
7.2.130.0030.01117.04
7.2.120.0040.00816.98
7.2.110.0050.00716.92
7.2.100.0070.00516.70
7.2.90.0060.00616.81
7.2.80.0130.00617.07
7.2.70.0070.00717.14
7.2.60.0070.00816.96
7.2.50.0070.00816.93
7.2.40.0060.00817.03
7.2.30.0120.00516.94
7.2.20.0050.00517.05
7.2.10.0070.00817.02
7.2.00.0040.00717.76
7.1.250.0020.00915.91
7.1.200.0150.00415.61
7.1.100.0000.01517.72
7.1.70.0000.00916.97
7.1.60.0030.02119.29
7.1.50.0130.00917.07
7.1.00.0070.07022.40
7.0.200.0050.00514.96
7.0.140.0070.07021.93
7.0.60.0100.08019.81
7.0.50.0070.03717.97
7.0.40.0030.09020.23
7.0.30.0230.06020.34
7.0.20.0270.09020.15
7.0.10.0300.08020.09
7.0.00.0100.04720.22
5.6.280.0000.07721.18
5.6.210.0000.04320.72
5.6.200.0100.07718.18
5.6.190.0030.06720.61
5.6.180.0000.05020.48
5.6.170.0300.07720.55
5.6.160.0030.06720.45
5.6.150.0030.04318.21
5.6.140.0070.08018.12
5.6.130.0100.08018.18
5.6.120.0130.08021.09
5.6.110.0030.09320.96
5.6.100.0000.04320.90
5.6.90.0170.07021.00
5.6.80.0130.07720.50
5.6.70.0330.04720.43
5.5.350.0070.04020.43
5.5.340.0170.06717.95
5.5.330.0030.04320.27
5.5.320.0030.05020.23
5.5.310.0300.07720.27
5.5.300.0070.06717.98
5.5.290.0070.06318.08
5.5.280.0100.08020.80
5.5.270.0070.03720.78
5.5.260.0130.07320.89
5.5.250.0070.04320.70
5.5.240.0070.05320.25
5.4.450.1000.04019.17
5.4.440.0800.06019.55
5.4.430.0930.04719.58
5.4.420.0800.05319.58
5.4.410.0200.05018.70
5.4.400.0030.06318.61
5.4.390.0200.04718.81
5.4.380.0100.06018.71
5.4.370.0170.05318.75
5.4.360.0130.05718.76
5.4.350.0200.05318.75
5.4.340.0130.07718.58
5.4.320.0060.03612.51
5.4.310.0040.04012.52
5.4.300.0070.03512.52
5.4.290.0030.04912.51
5.4.280.0160.06512.38
5.4.270.0120.05912.38
5.4.260.0130.07312.38
5.4.250.0160.07912.38
5.4.240.0090.06812.38
5.4.230.0200.05312.37
5.4.220.0080.05712.37
5.4.210.0120.04112.37
5.4.200.0090.08412.37
5.4.190.0150.09012.37
5.4.180.0110.06612.36
5.4.170.0090.06912.38
5.4.160.0080.05212.38
5.4.150.0060.04812.37
5.4.140.0080.04012.05
5.4.130.0060.04112.04
5.4.120.0110.03712.00
5.4.110.0080.03911.99
5.4.100.0060.04111.99
5.4.90.0090.03911.99
5.4.80.0100.04511.99
5.4.70.0070.04111.98
5.4.60.0070.04111.99
5.4.50.0100.03811.99
5.4.40.0070.04111.98
5.4.30.0120.03711.97
5.4.20.0090.04011.98
5.4.10.0320.06311.98
5.4.00.0100.07111.46
5.3.290.0090.03712.80
5.3.280.0080.06412.71
5.3.270.0130.08012.73
5.3.260.0130.04112.72
5.3.250.0090.04012.72
5.3.240.0070.04312.72
5.3.230.0120.05312.71
5.3.220.0130.03912.68
5.3.210.0100.05512.68
5.3.200.0130.03712.68
5.3.190.0230.06512.68
5.3.180.0230.09112.68
5.3.170.0180.08412.67
5.3.160.0150.05012.67
5.3.150.0200.05412.67
5.3.140.0150.06212.66
5.3.130.0170.06912.66
5.3.120.0120.06812.66
5.3.110.0090.04912.65
5.3.100.0210.05812.12
5.3.90.0060.05512.09
5.3.80.0140.04512.08
5.3.70.0120.03912.08
5.3.60.0100.04912.07
5.3.50.0080.05412.02
5.3.40.0060.05412.01
5.3.30.0160.07211.97
5.3.20.0160.06611.76
5.3.10.0060.07611.72
5.3.00.0180.05511.71
5.2.170.0080.0469.21
5.2.160.0050.0369.21
5.2.150.0100.0319.21
5.2.140.0070.0369.21
5.2.130.0070.0309.16
5.2.120.0080.0289.17
5.2.110.0060.0319.17
5.2.100.0050.0329.18
5.2.90.0070.0339.16
5.2.80.0100.0349.17
5.2.70.0050.0369.16
5.2.60.0110.0439.13
5.2.50.0170.0519.09
5.2.40.0110.0449.07
5.2.30.0120.0459.04
5.2.20.0070.0529.03
5.2.10.0070.0388.94
5.2.00.0060.0388.81
5.1.60.0130.0398.09
5.1.50.0130.0468.09
5.1.40.0120.0348.08
5.1.30.0090.0548.42
5.1.20.0070.0308.45
5.1.10.0150.0528.18
5.1.00.0050.0318.17
5.0.50.0040.0266.66
5.0.40.0060.0226.52
5.0.30.0050.0356.33
5.0.20.0040.0276.30
5.0.10.0070.0336.27
5.0.00.0140.0596.27
4.4.90.0040.0344.78
4.4.80.0050.0174.76
4.4.70.0120.0234.75
4.4.60.0070.0164.75
4.4.50.0020.0184.77
4.4.40.0030.0294.71
4.4.30.0030.0194.75
4.4.20.0100.0354.84
4.4.10.0040.0204.85
4.4.00.0050.0284.76
4.3.110.0030.0174.67
4.3.100.0090.0324.66
4.3.90.0020.0234.63
4.3.80.0110.0534.59
4.3.70.0070.0404.63
4.3.60.0040.0184.63
4.3.50.0050.0324.63
4.3.40.0030.0324.54
4.3.30.0020.0233.33
4.3.20.0040.0203.32
4.3.10.0090.0613.27
4.3.00.0100.01313.64

preferences:
44.55 ms | 401 KiB | 5 Q