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"); ?>

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)
8.3.70.0110.00718.36
8.3.60.0090.00616.50
8.3.50.0120.00422.00
8.3.40.0030.01718.77
8.3.30.0070.00719.21
8.3.20.0070.00720.04
8.3.10.0040.00423.58
8.3.00.0040.00422.57
8.2.180.0030.01216.63
8.2.170.0070.00722.96
8.2.160.0120.00319.01
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0050.00326.16
8.2.120.0080.00022.25
8.2.110.0070.00322.00
8.2.100.0040.00817.84
8.2.90.0000.00817.91
8.2.80.0060.00319.23
8.2.70.0050.00518.04
8.2.60.0040.00417.93
8.2.50.0040.00418.10
8.2.40.0040.00420.55
8.2.30.0060.00318.18
8.2.20.0040.00417.73
8.2.10.0080.00019.43
8.2.00.0080.00017.74
8.1.280.0110.00425.92
8.1.270.0080.00622.19
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00422.06
8.1.230.0080.00420.95
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0050.00517.47
8.1.190.0030.00617.35
8.1.180.0080.00018.10
8.1.170.0050.00318.65
8.1.160.0000.00722.20
8.1.150.0000.00718.57
8.1.140.0060.00317.33
8.1.130.0030.00317.88
8.1.120.0070.00017.44
8.1.110.0000.00817.48
8.1.100.0030.00317.48
8.1.90.0000.00917.42
8.1.80.0030.00317.43
8.1.70.0030.00317.41
8.1.60.0080.00017.56
8.1.50.0040.00417.63
8.1.40.0040.00417.62
8.1.30.0030.00517.64
8.1.20.0060.00317.55
8.1.10.0040.00417.63
8.1.00.0080.00017.51
8.0.300.0000.00720.10
8.0.290.0040.00416.75
8.0.280.0000.00718.51
8.0.270.0030.00317.29
8.0.260.0000.00716.80
8.0.250.0000.00617.05
8.0.240.0040.00416.89
8.0.230.0030.00316.86
8.0.220.0040.00416.95
8.0.210.0000.01116.92
8.0.200.0000.00716.96
8.0.190.0000.00816.91
8.0.180.0070.00316.89
8.0.170.0000.00716.95
8.0.160.0040.00416.98
8.0.150.0030.00516.88
8.0.140.0000.00816.82
8.0.130.0030.00313.39
8.0.120.0040.00416.82
8.0.110.0030.00516.86
8.0.100.0070.00016.83
8.0.90.0080.00016.85
8.0.80.0000.01416.92
8.0.70.0070.00316.90
8.0.60.0000.00816.81
8.0.50.0030.00516.82
8.0.30.0120.01216.99
8.0.20.0130.01017.40
8.0.10.0000.00716.91
8.0.00.0200.00716.71
7.4.330.0050.00015.14
7.4.320.0060.00016.53
7.4.300.0080.00016.61
7.4.290.0060.00316.50
7.4.280.0040.00416.60
7.4.270.0060.00316.63
7.4.260.0030.00616.64
7.4.250.0080.00016.50
7.4.240.0020.00716.64
7.4.230.0070.00016.68
7.4.220.0030.01316.70
7.4.210.0100.00516.67
7.4.200.0030.00316.72
7.4.190.0070.00016.67
7.4.160.0090.00916.61
7.4.150.0110.00917.40
7.4.140.0110.01117.86
7.4.130.0130.00716.57
7.4.120.0130.00816.56
7.4.110.0120.00816.33
7.4.100.0100.01316.51
7.4.90.0100.00716.60
7.4.80.0040.01219.37
7.4.70.0080.00816.63
7.4.60.0100.00616.50
7.4.50.0000.00916.45
7.4.40.0050.00822.77
7.4.30.0120.00616.48
7.4.00.0070.01114.91
7.3.330.0000.00513.45
7.3.320.0000.00513.33
7.3.310.0030.00316.37
7.3.300.0030.00316.42
7.3.290.0130.00916.36
7.3.280.0090.00916.34
7.3.270.0160.00817.40
7.3.260.0090.00916.54
7.3.250.0120.00516.48
7.3.240.0090.00916.66
7.3.230.0120.00916.39
7.3.210.0170.00016.50
7.3.200.0070.01019.39
7.3.190.0170.00316.39
7.3.180.0060.01016.67
7.3.170.0040.01216.59
7.3.160.0090.00616.43
7.3.120.0110.00614.72
7.3.110.0060.00615.11
7.3.100.0060.01014.79
7.3.90.0070.01014.95
7.3.80.0100.00714.60
7.3.70.0030.00814.89
7.3.60.0100.00314.89
7.3.50.0040.01114.99
7.3.40.0040.00714.81
7.3.30.0040.00814.93
7.3.20.0070.01116.76
7.3.10.0030.01216.51
7.3.00.0060.00316.74
7.2.330.0100.01316.87
7.2.320.0060.01216.72
7.2.310.0110.00516.55
7.2.300.0100.00716.41
7.2.290.0070.01016.82
7.2.250.0100.01015.25
7.2.240.0100.00715.21
7.2.230.0110.00415.04
7.2.220.0040.00814.91
7.2.210.0060.00615.29
7.2.200.0070.00715.19
7.2.190.0040.00715.01
7.2.180.0100.00614.98
7.2.170.0060.00914.91
7.2.60.0070.00717.11
7.2.00.0070.00719.38
7.1.330.0130.00315.84
7.1.320.0090.00015.97
7.1.310.0000.00916.04
7.1.300.0090.00615.91
7.1.290.0030.01015.63
7.1.280.0030.00915.58
7.1.270.0070.00715.80
7.1.260.0040.00715.56
7.1.200.0130.00615.75
7.1.100.0040.00918.24
7.1.70.0000.00717.18
7.1.60.0170.00319.29
7.1.50.0140.01116.79
7.1.00.0000.07722.51
7.0.200.0180.00416.57
7.0.140.0030.07322.21
7.0.60.0030.04719.91
7.0.50.0070.03717.94
7.0.40.0070.09020.13
7.0.30.0330.04720.30
7.0.20.0230.04720.24
7.0.10.0230.08720.22
7.0.00.0030.06720.23
5.6.280.0030.07321.08
5.6.210.0070.03720.68
5.6.200.0030.08318.22
5.6.190.0030.04320.41
5.6.180.0000.08320.48
5.6.170.0270.05020.54
5.6.160.0030.06720.57
5.6.150.0030.08718.19
5.6.140.0100.05018.28
5.6.130.0100.07318.19
5.6.120.0070.05320.98
5.6.110.0070.05720.99
5.6.100.0000.04321.12
5.6.90.0130.08020.98
5.6.80.0070.07720.54
5.6.70.0330.04320.29
5.5.350.0000.03320.31
5.5.340.0130.07017.95
5.5.330.0100.08020.21
5.5.320.0030.05720.38
5.5.310.0230.09320.20
5.5.300.0100.04718.00
5.5.290.0000.06317.99
5.5.280.0200.07320.97
5.5.270.0170.04020.89
5.5.260.0070.05320.96
5.5.250.0100.03320.59
5.5.240.0000.04320.38
5.4.450.1100.05019.57
5.4.440.0770.05719.64
5.4.430.0670.05319.55
5.4.420.0670.05319.30
5.4.410.0300.05719.08
5.4.400.0070.05718.77
5.4.390.0170.05318.61
5.4.380.0030.06318.74
5.4.370.0230.05318.79
5.4.360.0200.04718.71
5.4.350.0170.06018.77
5.4.340.0130.05318.54
5.4.320.0040.04112.52
5.4.310.0060.03812.51
5.4.300.0070.03712.52
5.4.290.0050.03812.51
5.4.280.0200.08212.38
5.4.270.0180.07812.38
5.4.260.0550.11812.38
5.4.250.0190.09412.38
5.4.240.0140.07012.38
5.4.230.0150.11312.37
5.4.220.0370.09712.37
5.4.210.0160.05212.37
5.4.200.0080.05312.37
5.4.190.0090.05612.37
5.4.180.0130.06712.37
5.4.170.0130.08812.37
5.4.160.0080.05212.37
5.4.150.0170.08112.37
5.4.140.0050.05712.05
5.4.130.0250.10412.04
5.4.120.0200.06112.00
5.4.110.0140.06912.00
5.4.100.0210.08512.00
5.4.90.0090.06911.99
5.4.80.0170.11511.99
5.4.70.0130.07311.99
5.4.60.0060.05611.99
5.4.50.0110.05211.99
5.4.40.0150.07811.98
5.4.30.0230.08911.97
5.4.20.0220.06611.97
5.4.10.0130.06211.97
5.4.00.0080.06011.46
5.3.290.0050.04112.80
5.3.280.0160.05312.70
5.3.270.0090.05212.73
5.3.260.0120.05312.72
5.3.250.0070.07412.72
5.3.240.0180.08312.71
5.3.230.0180.06412.71
5.3.220.0060.06612.68
5.3.210.0110.08312.68
5.3.200.0150.08712.68
5.3.190.0270.06112.68
5.3.180.0170.06012.68
5.3.170.0170.07012.67
5.3.160.0130.06912.67
5.3.150.0110.05812.68
5.3.140.0130.05412.66
5.3.130.0140.06112.66
5.3.120.0100.05212.66
5.3.110.0140.06412.66
5.3.100.0080.05312.12
5.3.90.0120.05012.09
5.3.80.0100.05312.08
5.3.70.0050.04912.08
5.3.60.0120.05012.06
5.3.50.0090.04112.02
5.3.40.0070.06012.01
5.3.30.0190.06111.97
5.3.20.0150.05111.76
5.3.10.0100.06511.72
5.3.00.0110.05411.71
5.2.170.0060.0439.21
5.2.160.0080.0449.21
5.2.150.0110.0459.21
5.2.140.0090.0429.21
5.2.130.0140.0339.17
5.2.120.0050.0519.16
5.2.110.0090.0459.17
5.2.100.0110.0389.17
5.2.90.0050.0469.17
5.2.80.0070.0449.16
5.2.70.0140.0419.16
5.2.60.0090.0439.12
5.2.50.0170.0319.09
5.2.40.0080.0449.07
5.2.30.0070.0469.04
5.2.20.0100.0429.03
5.2.10.0060.0448.94
5.2.00.0080.0458.81
5.1.60.0050.0428.09
5.1.50.0070.0378.09
5.1.40.0060.0428.08
5.1.30.0050.0438.41
5.1.20.0030.0538.45
5.1.10.0070.0418.18
5.1.00.0070.0458.17
5.0.50.0090.0306.66
5.0.40.0050.0316.52
5.0.30.0120.0546.33
5.0.20.0070.0336.30
5.0.10.0110.0446.27
5.0.00.0190.1076.28
4.4.90.0040.0274.78
4.4.80.0060.0254.75
4.4.70.0030.0274.76
4.4.60.0040.0274.76
4.4.50.0080.0274.77
4.4.40.0060.0404.71
4.4.30.0040.0274.76
4.4.20.0030.0294.84
4.4.10.0060.0254.85
4.4.00.0060.0374.76
4.3.110.0040.0274.67
4.3.100.0070.0564.67
4.3.90.0050.0344.64
4.3.80.0040.0694.59
4.3.70.0130.0454.63
4.3.60.0060.0244.62
4.3.50.0040.0454.63
4.3.40.0040.0754.54
4.3.30.0080.0443.32
4.3.20.0060.0543.31
4.3.10.0040.0493.28
4.3.00.0030.01713.64

preferences:
48.19 ms | 401 KiB | 5 Q