3v4l.org

run code in 300+ PHP versions simultaneously
<?php function LevenshteinDistance($str1, $str2) { $d = array (); $len1 = strlen($str1); $len2 = strlen($str2); for ($i1 = 0; $i1 <= $len1; $i1++) { $d[$i1] = array (); $d[$i1][0] = $i1; } for ($i2 = 0; $i2 <= $len2; $i2++) { $d[0][$i2] = $i2; } for ($i1 = 1; $i1 <= $len1; $i1++) { for ($i2 = 1; $i2 <= $len2; $i2++) { $cost = ($str1[$i1 - 1] == $str2[$i2 - 1]) ? 0 : 1; $d[$i1][$i2] = min( $d[$i1 - 1][$i2 ] + 1, //挿入 $d[$i1 ][$i2 - 1] + 1, //削除 $d[$i1 - 1][$i2 - 1] + $cost //置換 ); } } return $d[$len1][$len2]; } echo LevenshteinDistance("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa","cft"); ?>

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)
8.3.60.0140.00718.55
8.3.50.0040.01222.01
8.3.40.0090.00618.76
8.3.30.0100.00319.21
8.3.20.0060.00320.29
8.3.10.0000.00823.48
8.3.00.0000.00822.39
8.2.180.0090.00916.50
8.2.170.0090.00922.96
8.2.160.0040.01220.39
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.01526.16
8.2.120.0040.00422.20
8.2.110.0070.00320.53
8.2.100.0120.00017.72
8.2.90.0030.00518.16
8.2.80.0040.00417.97
8.2.70.0030.00617.62
8.2.60.0040.00417.80
8.2.50.0000.00818.07
8.2.40.0050.00319.52
8.2.30.0080.00018.19
8.2.20.0030.00517.83
8.2.10.0040.00417.81
8.2.00.0040.00417.69
8.1.280.0150.00025.92
8.1.270.0070.00723.97
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0090.00022.33
8.1.230.0030.01021.09
8.1.220.0030.00617.91
8.1.210.0000.00819.10
8.1.200.0030.00617.47
8.1.190.0040.00417.75
8.1.180.0030.00618.10
8.1.170.0040.00418.54
8.1.160.0000.00822.00
8.1.150.0040.00418.80
8.1.140.0040.00417.66
8.1.130.0040.00417.81
8.1.120.0000.00717.62
8.1.110.0030.00517.52
8.1.100.0050.00217.52
8.1.90.0040.00417.57
8.1.80.0050.00217.63
8.1.70.0030.00317.57
8.1.60.0040.00417.68
8.1.50.0060.00317.70
8.1.40.0050.00317.54
8.1.30.0000.00917.68
8.1.20.0030.00617.67
8.1.10.0030.00617.58
8.1.00.0000.00917.60
8.0.300.0040.00420.21
8.0.290.0000.00717.14
8.0.280.0050.00218.60
8.0.270.0040.00417.28
8.0.260.0030.00316.84
8.0.250.0000.00816.98
8.0.240.0040.00416.94
8.0.230.0040.00416.99
8.0.220.0000.00716.98
8.0.210.0100.00016.95
8.0.200.0050.00316.97
8.0.190.0080.00016.88
8.0.180.0000.00716.93
8.0.170.0080.00016.96
8.0.160.0040.00416.85
8.0.150.0000.00716.89
8.0.140.0040.00416.93
8.0.130.0060.00013.36
8.0.120.0060.00316.84
8.0.110.0090.00017.01
8.0.100.0000.00816.99
8.0.90.0040.00416.91
8.0.80.0090.01216.89
8.0.70.0040.00416.79
8.0.60.0030.00517.00
8.0.50.0080.00016.89
8.0.30.0120.00717.23
8.0.20.0150.00417.40
8.0.10.0050.00317.12
8.0.00.0140.00616.87
7.4.330.0000.00515.00
7.4.320.0000.00616.55
7.4.300.0000.00616.71
7.4.290.0070.00016.64
7.4.280.0050.00316.64
7.4.270.0090.00016.63
7.4.260.0080.00016.76
7.4.250.0050.00316.70
7.4.240.0040.00416.69
7.4.230.0000.00816.49
7.4.220.0100.00716.71
7.4.210.0110.00516.75
7.4.200.0040.00416.55
7.4.190.0030.00316.87
7.4.160.0110.00616.73
7.4.150.0140.00317.40
7.4.140.0130.00517.86
7.4.130.0130.00916.70
7.4.120.0110.00616.75
7.4.110.0070.01016.70
7.4.100.0090.01216.51
7.4.90.0240.00016.65
7.4.80.0070.01019.39
7.4.70.0090.01216.82
7.4.60.0070.01416.57
7.4.50.0060.00316.69
7.4.40.0030.01322.77
7.4.30.0090.00616.50
7.4.00.0080.00815.27
7.3.330.0060.00313.32
7.3.320.0030.00313.29
7.3.310.0030.00316.30
7.3.300.0030.00316.56
7.3.290.0070.00716.41
7.3.280.0130.00716.47
7.3.270.0060.01117.40
7.3.260.0060.01316.54
7.3.250.0090.01116.47
7.3.240.0070.01316.53
7.3.230.0070.01016.65
7.3.210.0100.00716.74
7.3.200.0120.00919.39
7.3.190.0090.00816.42
7.3.180.0100.00616.54
7.3.170.0030.01316.70
7.3.160.0000.01616.71
7.3.120.0100.00715.02
7.2.330.0100.00716.64
7.2.320.0090.00916.72
7.2.310.0100.00716.79
7.2.300.0100.01016.83
7.2.290.0030.01316.69
7.2.00.0000.01419.29
7.1.100.0000.01117.87
7.1.70.0060.00617.18
7.1.60.0040.02219.29
7.1.50.0060.01916.96
7.1.00.0000.08022.37
7.0.200.0040.00816.84
7.0.140.0130.06322.04
7.0.60.0070.08020.05
7.0.50.0000.07717.84
7.0.40.0030.05720.40
7.0.30.0330.07320.09
7.0.20.0270.05020.23
7.0.10.0330.05020.30
7.0.00.0100.08720.09
5.6.280.0030.07721.19
5.6.210.0100.07720.59
5.6.200.0030.04718.18
5.6.190.0070.09020.58
5.6.180.0230.06020.58
5.6.170.0200.05320.46
5.6.160.0130.07720.54
5.6.150.0030.09018.15
5.6.140.0130.07318.14
5.6.130.0200.06718.19
5.6.120.0030.04321.04
5.6.110.0030.04721.17
5.6.100.0070.06021.04
5.6.90.0030.06720.99
5.6.80.0070.07720.45
5.6.70.3770.04720.40
5.5.350.0270.07320.48
5.5.340.0030.08718.09
5.5.330.0100.03720.27
5.5.320.0170.07320.21
5.5.310.0070.05320.27
5.5.300.0000.07718.07
5.5.290.0030.05318.04
5.5.280.0000.04721.02
5.5.270.0030.07320.72
5.5.260.0030.04720.91
5.5.250.0070.07720.63
5.5.240.0100.07720.23
5.4.450.1000.06319.55
5.4.440.0130.06719.46
5.4.430.1000.04319.63
5.4.420.0070.06319.32
5.4.410.0130.07318.99
5.4.400.0130.07719.06
5.4.390.0030.06318.81
5.4.380.0130.05318.97
5.4.370.0300.06318.80
5.4.360.0400.06018.96
5.4.350.0370.05018.75
5.4.340.0370.05018.98
5.4.320.0060.03712.74
5.4.310.0050.04012.74
5.4.300.0070.04112.75
5.4.290.0060.03612.74
5.4.280.0060.04512.61
5.4.270.0090.06812.61
5.4.260.0110.05012.61
5.4.250.0090.05112.61
5.4.240.0090.05912.61
5.4.230.0050.06212.60
5.4.220.0090.06212.61
5.4.210.0070.06012.61
5.4.200.0050.04512.60
5.4.190.0100.04012.60
5.4.180.0060.08512.59
5.4.170.0110.05412.61
5.4.160.0080.05212.60
5.4.150.0070.05212.59
5.4.140.0090.05812.29
5.4.130.0150.06112.27
5.4.120.0080.05912.23
5.4.110.0070.04112.22
5.4.100.0060.03712.22
5.4.90.0100.04312.22
5.4.80.0060.06112.23
5.4.70.0080.05012.22
5.4.60.0090.05212.22
5.4.50.0110.04812.21
5.4.40.0090.04912.21
5.4.30.0050.06312.20
5.4.20.0100.05412.21
5.4.10.0080.05412.21
5.4.00.0070.05111.70
5.3.290.0060.03912.98
5.3.280.0160.04612.88
5.3.270.0080.05912.90
5.3.260.0130.05012.89
5.3.250.0070.05312.89
5.3.240.0090.05312.89
5.3.230.0120.04912.89
5.3.220.0090.05312.86
5.3.210.0100.05512.85
5.3.200.0080.05412.86
5.3.190.0140.07412.86
5.3.180.0080.06912.86
5.3.170.0080.05312.85
5.3.160.0130.05212.85
5.3.150.0090.06412.85
5.3.140.0080.05412.84
5.3.130.0090.05612.84
5.3.120.0060.05612.84
5.3.110.0090.05312.84
5.3.100.0120.04512.32
5.3.90.0060.05312.30
5.3.80.0090.04812.29
5.3.70.0140.05612.29
5.3.60.0120.05012.25
5.3.50.0060.05412.22
5.3.40.0100.05312.23
5.3.30.0080.05612.19
5.3.20.0120.04911.97
5.3.10.0110.04511.93
5.3.00.0090.05711.92
5.2.170.0060.0499.41
5.2.160.0060.0429.41
5.2.150.0060.0459.41
5.2.140.0030.0489.41
5.2.130.0110.0389.37
5.2.120.0070.0439.37
5.2.110.0050.0459.37
5.2.100.0080.0419.38
5.2.90.0070.0459.37
5.2.80.0080.0429.37
5.2.70.0060.0459.36
5.2.60.0090.0419.32
5.2.50.0050.0369.29
5.2.40.0090.0309.26
5.2.30.0060.0329.24
5.2.20.0060.0339.23
5.2.10.0040.0319.14
5.2.00.0060.0319.00
5.1.60.0040.0308.36
5.1.50.0050.0328.36
5.1.40.0050.0398.34
5.1.30.0120.0398.69
5.1.20.0070.0478.71
5.1.10.0060.0378.44
5.1.00.0030.0408.43
5.0.50.0090.0276.92
5.0.40.0030.0316.78
5.0.30.0050.0426.59
5.0.20.0070.0256.57
5.0.10.0060.0286.54
5.0.00.0030.0436.54
4.4.90.0040.0274.94
4.4.80.0040.0314.92
4.4.70.0090.0214.93
4.4.60.0040.0214.93
4.4.50.0030.0254.93
4.4.40.0030.0374.93
4.4.30.0080.0214.93
4.4.20.0050.0254.99
4.4.10.0060.0224.99
4.4.00.0030.0344.96
4.3.110.0060.0224.86
4.3.100.0050.0224.86
4.3.90.0040.0214.83
4.3.80.0020.0324.84
4.3.70.0030.0214.83
4.3.60.0010.0194.83
4.3.50.0020.0274.83
4.3.40.0030.0274.79
4.3.30.0030.0183.60
4.3.20.0030.0243.58
4.3.10.0090.0203.54
4.3.00.0130.01313.64

preferences:
35.72 ms | 401 KiB | 5 Q