3v4l.org

run code in 300+ PHP versions simultaneously
<?php function levenshteinDistance($a, $b) { $matrix = array(count($a) + 1); for ($i=0; $i<count($a)+1; $i++) { $matrix[$i] = array(count($b) + 1); } for ($i=0; $i<count($a)+1; $i++) { $matrix[$i][0] = $i; } for ($j=0; $j<count($b)+1; $j++) { $matrix[0][$j] = $j; } for ($i=1; $i<count($a)+1; $i++) { for ($j=1; $j<count($b)+1; $j++) { $x = $a[$i - 1] == $b[$j -1] ? 0 : 1; $matrix[$i][$j] = min( $matrix[$i - 1][$j] + 1, $matrix[$i][$j - 1] + 1, $matrix[$i - 1][$j- 1] + $x ); } } return $matrix[count($a)][count($b)]; } echo levenshteinDistance("att","bba"); ?>

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)
8.3.60.0110.00416.50
8.3.50.0100.00621.89
8.3.40.0040.01118.83
8.3.30.0150.00019.09
8.3.20.0000.00720.21
8.3.10.0040.00423.61
8.3.00.0040.00419.08
8.2.180.0090.00916.50
8.2.170.0110.00322.96
8.2.160.0100.00320.30
8.2.150.0050.00224.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0000.00820.89
8.2.110.0070.00322.13
8.2.100.0080.00418.96
8.2.90.0090.00017.75
8.2.80.0000.00817.97
8.2.70.0070.00317.80
8.2.60.0060.00317.80
8.2.50.0040.00418.10
8.2.40.0030.00622.37
8.2.30.0040.00418.28
8.2.20.0030.00517.67
8.2.10.0050.00218.08
8.2.00.0080.00017.79
8.1.280.0110.00425.92
8.1.270.0040.00423.71
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00622.14
8.1.230.0070.00319.17
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0070.00317.22
8.1.190.0000.00818.84
8.1.180.0040.00418.10
8.1.170.0040.00418.67
8.1.160.0000.00721.95
8.1.150.0040.00418.55
8.1.140.0000.00717.27
8.1.130.0000.00717.65
8.1.120.0030.00317.31
8.1.110.0040.00417.43
8.1.100.0000.00717.43
8.1.90.0040.00417.28
8.1.80.0000.00817.41
8.1.70.0000.00717.37
8.1.60.0050.00317.44
8.1.50.0030.00517.42
8.1.40.0040.00417.48
8.1.30.0040.00417.59
8.1.20.0000.00817.61
8.1.10.0070.00017.48
8.1.00.0040.00417.47
8.0.300.0040.00619.69
8.0.290.0040.00416.75
8.0.280.0000.00718.28
8.0.270.0070.00017.06
8.0.260.0030.00317.29
8.0.250.0000.00716.91
8.0.240.0030.00316.84
8.0.230.0000.00816.87
8.0.220.0040.00416.95
8.0.210.0070.00016.81
8.0.200.0000.00616.97
8.0.190.0000.00716.90
8.0.180.0000.00716.93
8.0.170.0040.00416.96
8.0.160.0020.00516.85
8.0.150.0000.00716.96
8.0.140.0020.00516.95
8.0.130.0000.00613.38
8.0.120.0040.00416.84
8.0.110.0050.00316.86
8.0.100.0030.00516.84
8.0.90.0040.00417.00
8.0.80.0060.00916.89
8.0.70.0020.00517.00
8.0.60.0040.00416.92
8.0.50.0050.00216.96
8.0.30.0110.01117.18
8.0.20.0120.00817.40
8.0.10.0000.00716.89
8.0.00.0080.01216.74
7.4.330.0050.00015.14
7.4.320.0030.00316.53
7.4.300.0000.00716.64
7.4.290.0000.00716.52
7.4.280.0000.00716.65
7.4.270.0030.00316.60
7.4.260.0000.00716.52
7.4.250.0050.00316.50
7.4.240.0020.00516.60
7.4.230.0070.00016.41
7.4.220.0110.00716.52
7.4.210.0070.00716.50
7.4.200.0030.00416.36
7.4.190.0040.00416.66
7.4.160.0060.00916.64
7.4.150.0090.00917.40
7.4.140.0110.00817.86
7.4.130.0110.00716.52
7.4.120.0050.01316.46
7.4.110.0120.01116.59
7.4.100.0110.00716.63
7.4.90.0140.00816.57
7.4.80.0120.00919.39
7.4.70.0100.00716.53
7.4.60.0150.00316.51
7.4.50.0000.00416.60
7.4.40.0050.01116.29
7.4.30.0150.00316.48
7.4.00.0050.00515.15
7.3.330.0070.00013.51
7.3.320.0030.00313.44
7.3.310.0020.00516.45
7.3.300.0030.00316.39
7.3.290.0030.01016.41
7.3.280.0070.01116.42
7.3.270.0140.00417.40
7.3.260.0140.01016.38
7.3.250.0090.01116.48
7.3.240.0160.00916.58
7.3.230.0040.01316.54
7.3.210.0100.01016.38
7.3.200.0000.01819.39
7.3.190.0120.00916.52
7.3.180.0130.00316.45
7.3.170.0060.00916.66
7.3.160.0060.00916.45
7.3.120.0070.01114.93
7.3.10.0030.01416.91
7.3.00.0100.00316.51
7.2.330.0180.00616.88
7.2.320.0060.01316.56
7.2.310.0140.00316.89
7.2.300.0120.00616.43
7.2.290.0090.00916.82
7.2.130.0070.00716.93
7.2.120.0080.00816.89
7.2.110.0040.01116.71
7.2.100.0110.00417.04
7.2.90.0070.00716.71
7.2.80.0050.00916.93
7.2.70.0080.00316.99
7.2.60.0100.00516.80
7.2.50.0040.00716.62
7.2.40.0060.00616.78
7.2.30.0070.00716.95
7.2.20.0060.00616.87
7.2.10.0040.01117.01
7.2.00.0020.01218.03
7.1.250.0000.01515.60
7.1.200.0030.00615.80
7.1.100.0040.01118.20
7.1.70.0100.00017.19
7.1.60.0120.01219.46
7.1.50.0160.00316.98
7.1.00.0070.07322.45
7.0.200.0000.00716.72
7.0.140.0070.06722.16
7.0.60.0070.03719.99
7.0.50.0100.07717.86
7.0.40.0030.05720.30
7.0.30.0100.05720.07
7.0.20.0300.07720.05
7.0.10.0070.04020.09
7.0.00.0130.08720.33
5.6.280.0070.07021.05
5.6.210.0070.03720.62
5.6.200.0100.08318.19
5.6.190.0000.08320.34
5.6.180.0000.04320.77
5.6.170.0230.05720.53
5.6.160.0030.04720.55
5.6.150.0070.08018.18
5.6.140.0130.03018.20
5.6.130.0000.08318.11
5.6.120.0100.08020.97
5.6.110.0130.07720.99
5.6.100.0000.06321.12
5.6.90.0070.07320.98
5.6.80.0130.07020.42
5.5.350.0070.07720.31
5.5.340.0170.04018.08
5.5.330.0030.06720.40
5.5.320.0230.04020.20
5.5.310.0200.07320.32
5.5.300.0100.07717.92
5.5.290.0030.05317.94
5.5.280.0100.05020.88
5.5.270.0030.09020.88
5.5.260.0030.05020.87
5.5.250.0070.07720.67
5.5.240.0030.03720.20
5.4.450.0730.06019.61
5.4.440.0830.05719.18
5.4.430.1100.05719.53
5.4.420.0630.05019.50
5.4.410.1030.05719.16
5.4.400.0730.05319.30
5.4.390.0700.05718.99
5.4.380.0170.05318.77
5.4.370.0130.05018.48
5.4.360.0170.05718.83
5.4.350.0170.07318.47
5.4.340.0170.05318.75
5.4.320.0050.03712.52
5.4.310.0050.04812.51
5.4.300.0070.04212.51
5.4.290.0050.04312.51
5.4.280.0080.03612.41
5.4.270.0100.04012.41
5.4.260.0050.05212.41
5.4.250.0080.04412.41
5.4.240.0110.04012.41
5.4.230.0080.04512.40
5.4.220.0060.03712.40
5.4.210.0070.04112.40
5.4.200.0070.04012.40
5.4.190.0040.04212.39
5.4.180.0060.04912.39
5.4.170.0040.04212.40
5.4.160.0120.03412.40
5.4.150.0110.04012.39
5.4.140.0070.04812.08
5.4.130.0100.04612.06
5.4.120.0050.05012.02
5.4.110.0100.05312.02
5.4.100.0090.05112.02
5.4.90.0080.05512.02
5.4.80.0070.04212.02
5.4.70.0070.03612.02
5.4.60.0120.04512.01
5.4.50.0090.04012.02
5.4.40.0060.05212.00
5.4.30.0070.05312.00
5.4.20.0050.05512.00
5.4.10.0050.03812.00
5.4.00.0070.03811.49
5.3.290.0050.04012.80
5.3.280.0090.03712.71
5.3.270.0080.04212.72
5.3.260.0090.03912.71
5.3.250.0070.04212.72
5.3.240.0030.04612.72
5.3.230.0070.03912.71
5.3.220.0070.04912.68
5.3.210.0080.04012.68
5.3.200.0100.03312.68
5.3.190.0080.04412.68
5.3.180.0090.03412.67
5.3.170.0070.03612.67
5.3.160.0090.03512.67
5.3.150.0070.03712.68
5.3.140.0060.04012.66
5.3.130.0090.03812.66
5.3.120.0030.04212.65
5.3.110.0050.04012.65
5.3.100.0090.03512.14
5.3.90.0100.03512.11
5.3.80.0060.04212.11
5.3.70.0120.04412.11
5.3.60.0050.04112.09
5.3.50.0070.03812.04
5.3.40.0080.04712.04
5.3.30.0070.04912.00
5.3.20.0030.04411.78
5.3.10.0080.04011.75
5.3.00.0050.05411.73
5.2.170.0090.0409.24
5.2.160.0020.0459.24
5.2.150.0040.0359.23
5.2.140.0110.0329.23
5.2.130.0080.0299.20
5.2.120.0050.0319.20
5.2.110.0050.0309.20
5.2.100.0030.0329.19
5.2.90.0070.0439.19
5.2.80.0070.0339.18
5.2.70.0050.0319.18
5.2.60.0030.0339.14
5.2.50.0040.0439.11
5.2.40.0110.0729.09
5.2.30.0140.0539.06
5.2.20.0070.0339.05
5.2.10.0080.0278.96
5.2.00.0040.0448.82
5.1.60.0040.0278.11
5.1.50.0080.0298.11
5.1.40.0040.0418.08
5.1.30.0190.0708.43
5.1.20.0030.0428.46
5.1.10.0040.0368.18
5.1.00.0070.0358.18
5.0.50.0100.0236.66
5.0.40.0060.0186.52
5.0.30.0040.0346.33
5.0.20.0040.0196.30
5.0.10.0050.0196.28
5.0.00.0040.0306.28
4.4.90.0040.0144.77
4.4.80.0040.0194.76
4.4.70.0060.0184.75
4.4.60.0050.0194.75
4.4.50.0030.0214.77
4.4.40.0040.0284.71
4.4.30.0030.0224.76
4.4.20.0050.0204.85
4.4.10.0030.0224.85
4.4.00.0040.0324.76
4.3.110.0040.0214.67
4.3.100.0020.0234.66
4.3.90.0040.0204.63
4.3.80.0080.0274.59
4.3.70.0050.0194.63
4.3.60.0060.0184.63
4.3.50.0040.0244.63
4.3.40.0030.0334.54
4.3.30.0040.0203.33
4.3.20.0030.0233.31
4.3.10.0010.0233.27
4.3.00.0070.0276.95

preferences:
51.88 ms | 400 KiB | 5 Q