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a",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)
8.3.60.0100.00316.63
8.3.50.0100.00622.10
8.3.40.0070.01018.80
8.3.30.0070.01019.28
8.3.20.0040.00420.33
8.3.10.0080.00023.61
8.3.00.0070.00022.44
8.2.180.0110.00718.38
8.2.170.0100.01018.91
8.2.160.0030.01022.96
8.2.150.0080.00025.66
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0080.00019.27
8.2.110.0030.00720.39
8.2.100.0030.00917.78
8.2.90.0080.00019.35
8.2.80.0050.00318.05
8.2.70.0080.00417.13
8.2.60.0000.00818.04
8.2.50.0040.00418.07
8.2.40.0080.00318.27
8.2.30.0030.00518.19
8.2.20.0060.00317.79
8.2.10.0080.00019.38
8.2.00.0040.00417.80
8.1.280.0060.01625.92
8.1.270.0080.00022.06
8.1.260.0070.00726.35
8.1.250.0040.00428.09
8.1.240.0030.00624.02
8.1.230.0070.00418.99
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0040.00417.55
8.1.180.0030.00518.10
8.1.170.0000.00918.65
8.1.160.0040.00421.95
8.1.150.0070.00018.71
8.1.140.0080.00017.39
8.1.130.0000.00817.76
8.1.120.0040.00417.48
8.1.110.0040.00417.37
8.1.100.0020.00517.48
8.1.90.0000.00917.40
8.1.80.0000.00717.37
8.1.70.0000.00717.48
8.1.60.0060.00317.71
8.1.50.0070.00017.59
8.1.40.0040.00417.48
8.1.30.0040.00417.60
8.1.20.0000.00817.71
8.1.10.0030.00617.63
8.1.00.0080.00017.57
8.0.300.0040.00418.77
8.0.290.0070.00017.18
8.0.280.0000.00818.55
8.0.270.0030.00317.39
8.0.260.0000.00716.82
8.0.250.0030.00317.04
8.0.240.0000.00716.94
8.0.230.0040.00417.01
8.0.220.0030.00316.90
8.0.210.0000.00816.90
8.0.200.0000.00816.99
8.0.190.0060.00316.89
8.0.180.0020.00516.82
8.0.170.0040.00416.82
8.0.160.0000.00716.86
8.0.150.0040.00416.91
8.0.140.0040.00416.85
8.0.130.0000.00613.41
8.0.120.0030.00516.82
8.0.110.0040.00416.93
8.0.100.0000.00816.88
8.0.90.0070.00016.93
8.0.80.0110.00716.93
8.0.70.0000.00817.02
8.0.60.0000.00716.84
8.0.50.0000.00816.86
8.0.30.0090.00917.15
8.0.20.0090.00917.41
8.0.10.0050.00217.07
8.0.00.0100.01116.91
7.4.330.0000.00515.08
7.4.320.0040.00416.48
7.4.300.0050.00216.54
7.4.290.0040.00416.57
7.4.280.0070.00016.61
7.4.270.0000.00716.63
7.4.260.0060.00316.53
7.4.250.0000.00716.54
7.4.240.0020.00516.57
7.4.230.0000.00716.70
7.4.220.0100.01316.63
7.4.210.0060.00916.55
7.4.200.0040.00416.72
7.4.190.0070.00016.58
7.4.160.0060.01016.52
7.4.150.0100.00617.40
7.4.140.0100.01317.86
7.4.130.0070.01316.64
7.4.120.0120.00716.49
7.4.110.0100.00616.42
7.4.100.0130.00616.56
7.4.90.0030.01416.68
7.4.80.0060.01216.37
7.4.70.0160.00016.54
7.4.60.0070.01616.38
7.4.50.0000.00616.37
7.4.40.0000.01122.77
7.4.30.0100.00716.56
7.4.00.0080.00815.20
7.3.330.0000.00513.25
7.3.320.0000.00613.45
7.3.310.0020.00516.28
7.3.300.0030.00316.39
7.3.290.0120.00916.35
7.3.280.0080.00716.43
7.3.270.0140.00317.40
7.3.260.0040.01416.57
7.3.250.0080.00916.62
7.3.240.0120.00416.60
7.3.230.0130.00316.66
7.3.210.0090.01016.69
7.3.200.0030.01719.39
7.3.190.0130.00716.61
7.3.180.0130.00816.49
7.3.170.0100.00616.43
7.3.160.0080.00816.53
7.3.120.0030.01014.70
7.3.110.0070.00714.76
7.3.100.0100.00714.78
7.3.90.0030.01214.98
7.3.80.0030.00714.72
7.3.70.0090.00614.71
7.3.60.0000.01014.69
7.3.50.0130.00314.51
7.3.40.0070.00714.87
7.3.30.0030.01014.79
7.3.20.0000.01116.73
7.3.10.0120.00316.62
7.3.00.0040.01416.46
7.2.330.0170.00416.91
7.2.320.0120.00616.76
7.2.310.0130.00916.82
7.2.300.0100.00716.81
7.2.290.0090.00616.48
7.2.240.0060.00314.99
7.2.230.0000.01015.00
7.2.220.0030.00914.98
7.2.210.0030.01314.88
7.2.200.0090.00615.02
7.2.190.0100.00614.78
7.2.180.0060.00614.71
7.2.170.0070.00714.68
7.2.160.0060.00615.08
7.2.150.0090.00616.94
7.2.140.0030.01317.14
7.2.130.0060.01216.97
7.2.120.0000.01416.67
7.2.110.0040.01116.84
7.2.100.0040.00816.84
7.2.90.0110.00616.58
7.2.80.0030.01216.85
7.2.70.0060.00916.83
7.2.60.0050.01016.86
7.2.50.0070.00716.97
7.2.40.0070.01016.91
7.2.30.0100.00716.59
7.2.20.0090.00617.21
7.2.10.0000.01416.77
7.2.00.0070.00718.00
7.1.330.0040.00815.57
7.1.320.0030.00915.82
7.1.310.0030.01115.98
7.1.300.0000.01315.91
7.1.290.0060.00815.73
7.1.280.0060.00615.90
7.1.270.0060.00915.89
7.1.260.0000.01815.74
7.1.250.0040.01115.82
7.1.200.0070.00715.74
7.1.100.0040.00717.88
7.1.70.0040.00417.15
7.1.60.0090.00619.29
7.1.50.0280.00434.92
7.1.00.0030.07722.54
7.0.200.0100.00616.69
7.0.140.0030.06722.09
7.0.60.0030.08319.85
7.0.50.0070.08317.84
7.0.40.0030.04719.97
7.0.30.0500.07020.21
7.0.20.0200.08020.24
7.0.10.0130.06020.08
7.0.00.0130.08020.16
5.6.280.0070.06720.87
5.6.210.0030.05020.58
5.6.200.0130.04718.24
5.6.190.0130.05720.39
5.6.180.0470.06020.61
5.6.170.0300.06720.43
5.6.160.0030.08320.44
5.6.150.0100.06318.11
5.6.140.0070.08318.21
5.6.130.0000.04718.22
5.6.120.0030.08720.79
5.6.110.0230.07021.00
5.6.100.0100.07721.14
5.6.90.0070.08720.89
5.6.80.0130.07720.35
5.5.350.0270.06320.41
5.5.340.0070.08018.07
5.5.330.0070.08020.47
5.5.320.0070.04720.24
5.5.310.0170.04720.51
5.5.300.0070.08018.00
5.5.290.0000.04318.07
5.5.280.0070.08720.81
5.5.270.0070.03720.65
5.5.260.0070.04020.88
5.5.250.0000.08720.59
5.5.240.0130.05720.13
5.4.450.0970.03719.55
5.4.440.0200.06019.57
5.4.430.0600.03319.57
5.4.420.1100.03319.54
5.4.410.0900.04319.39
5.4.400.0670.04319.23
5.4.390.0600.03319.22
5.4.380.0500.08718.80
5.4.370.0370.05318.70
5.4.360.0400.04718.70
5.4.350.0270.05318.48
5.4.340.0230.06018.74
5.4.320.0040.03812.51
5.4.310.0050.04612.51
5.4.300.0090.03412.52
5.4.290.0070.03612.51
5.4.280.0130.05612.38
5.4.270.0100.05012.38
5.4.260.0090.06512.38
5.4.250.0080.05012.38
5.4.240.0140.04712.38
5.4.230.0130.07312.37
5.4.220.0210.10412.37
5.4.210.0250.05712.37
5.4.200.0100.04912.38
5.4.190.0130.04612.37
5.4.180.0120.04212.37
5.4.170.0110.05912.38
5.4.160.0130.05112.37
5.4.150.0170.04812.37
5.4.140.0120.04112.05
5.4.130.0280.05912.04
5.4.120.0250.07212.00
5.4.110.0180.06111.99
5.4.100.0090.04212.00
5.4.90.0080.05012.00
5.4.80.0190.07911.99
5.4.70.0110.06411.99
5.4.60.0100.03911.99
5.4.50.0090.04011.99
5.4.40.0120.04511.98
5.4.30.0080.04011.98
5.4.20.0150.03511.98
5.4.10.0080.04211.97
5.4.00.0090.03811.46
5.3.290.0050.04012.80
5.3.280.0060.04612.71
5.3.270.0100.04412.72
5.3.260.0100.04412.72
5.3.250.0090.04812.72
5.3.240.0060.04512.72
5.3.230.0130.05312.71
5.3.220.0110.07412.68
5.3.210.0190.08012.68
5.3.200.0320.09612.68
5.3.190.0190.06812.68
5.3.180.0090.03912.68
5.3.170.0060.04412.67
5.3.160.0090.04112.67
5.3.150.0100.04012.67
5.3.140.0150.04512.66
5.3.130.0130.03812.66
5.3.120.0070.04412.66
5.3.110.0080.04512.66
5.3.100.0090.04612.12
5.3.90.0130.04012.09
5.3.80.0120.04912.08
5.3.70.0180.09112.08
5.3.60.0170.05412.07
5.3.50.0110.05812.02
5.3.40.0160.05312.01
5.3.30.0100.04911.97
5.3.20.0140.05211.76
5.3.10.0150.05411.71
5.3.00.0110.05511.71
5.2.170.0120.0409.21
5.2.160.0100.0459.21
5.2.150.0070.0429.21
5.2.140.0070.0489.20
5.2.130.0110.0479.16
5.2.120.0090.0489.16
5.2.110.0070.0439.18
5.2.100.0090.0459.17
5.2.90.0240.0539.16
5.2.80.0120.0639.16
5.2.70.0070.0369.16
5.2.60.0070.0469.12
5.2.50.0100.0419.09
5.2.40.0080.0299.07
5.2.30.0120.0499.04
5.2.20.0110.0639.03
5.2.10.0080.0578.94
5.2.00.0110.0488.80
5.1.60.0090.0428.09
5.1.50.0110.0318.09
5.1.40.0090.0328.07
5.1.30.0120.0488.41
5.1.20.0100.0518.44
5.1.10.0070.0308.18
5.1.00.0160.0508.18
5.0.50.0070.0256.66
5.0.40.0050.0286.52
5.0.30.0060.0436.33
5.0.20.0160.0576.30
5.0.10.0060.0366.27
5.0.00.0120.0646.27
4.4.90.0110.0224.77
4.4.80.0060.0154.76
4.4.70.0070.0154.75
4.4.60.0070.0164.75
4.4.50.0050.0164.77
4.4.40.0060.0274.71
4.4.30.0030.0194.76
4.4.20.0060.0204.84
4.4.10.0030.0344.85
4.4.00.0030.0304.75
4.3.110.0090.0274.66
4.3.100.0070.0184.66
4.3.90.0070.0304.63
4.3.80.0080.0334.59
4.3.70.0030.0234.63
4.3.60.0030.0214.62
4.3.50.0060.0204.63
4.3.40.0030.0484.54
4.3.30.0040.0243.32
4.3.20.0070.0313.31
4.3.10.0020.0193.27
4.3.00.0370.00713.64

preferences:
50.64 ms | 400 KiB | 5 Q