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; if($a[$i-1] == $b[$j-1]){ $x = 0; } else{ $x = 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("aaa","bbb"); ?>

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)
8.3.70.0100.00718.68
8.3.60.0100.00716.88
8.3.50.0080.01022.12
8.3.40.0060.00918.78
8.3.30.0080.00619.11
8.3.20.0040.00420.34
8.3.10.0000.00823.71
8.3.00.0000.00818.97
8.2.180.0140.00416.88
8.2.170.0140.00722.96
8.2.160.0000.01320.53
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00420.82
8.2.110.0090.00022.11
8.2.100.0080.00417.91
8.2.90.0060.00319.11
8.2.80.0050.00317.97
8.2.70.0040.00417.50
8.2.60.0090.00317.90
8.2.50.0000.00818.07
8.2.40.0000.00821.27
8.2.30.0000.00718.23
8.2.20.0000.00817.67
8.2.10.0040.00417.95
8.2.00.0030.00517.75
8.1.280.0070.00725.92
8.1.270.0040.00423.93
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0000.00923.97
8.1.230.0040.00819.21
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0000.01017.25
8.1.190.0000.00817.23
8.1.180.0050.00318.10
8.1.170.0040.00418.70
8.1.160.0070.00021.93
8.1.150.0070.00018.51
8.1.140.0040.00417.41
8.1.130.0030.00317.82
8.1.120.0070.00017.46
8.1.110.0050.00217.38
8.1.100.0000.00717.40
8.1.90.0040.00417.40
8.1.80.0050.00317.41
8.1.70.0050.00317.37
8.1.60.0030.00617.54
8.1.50.0050.00317.39
8.1.40.0000.00817.48
8.1.30.0030.00617.60
8.1.20.0040.00417.54
8.1.10.0030.00517.38
8.1.00.0040.00417.40
8.0.300.0080.00018.77
8.0.290.0050.00216.75
8.0.280.0080.00018.43
8.0.270.0000.00717.22
8.0.260.0000.00617.20
8.0.250.0030.00317.03
8.0.240.0000.00816.97
8.0.230.0060.00016.83
8.0.220.0000.00816.80
8.0.210.0000.00716.93
8.0.200.0000.00717.00
8.0.190.0050.00217.01
8.0.180.0040.00416.91
8.0.170.0050.00217.03
8.0.160.0070.00016.84
8.0.150.0050.00217.00
8.0.140.0040.00316.84
8.0.130.0030.00313.44
8.0.120.0040.00416.87
8.0.110.0080.00017.00
8.0.100.0040.00416.84
8.0.90.0000.00716.89
8.0.80.0060.00916.88
8.0.70.0020.00716.75
8.0.60.0000.00716.86
8.0.50.0050.00316.74
8.0.30.0120.00616.98
8.0.20.0090.00917.40
8.0.10.0040.00416.84
8.0.00.0160.00816.67
7.4.330.0050.00015.15
7.4.320.0030.00316.66
7.4.300.0040.00416.54
7.4.290.0000.00716.52
7.4.280.0000.00716.51
7.4.270.0000.00816.60
7.4.260.0000.00716.49
7.4.250.0040.00416.51
7.4.240.0040.00416.64
7.4.230.0000.00716.41
7.4.220.0090.00916.64
7.4.210.0080.00616.64
7.4.200.0030.00316.50
7.4.190.0000.00716.71
7.4.160.0080.00816.63
7.4.150.0030.01417.40
7.4.140.0090.01117.86
7.4.130.0090.00916.57
7.4.120.0120.00716.60
7.4.110.0160.00316.52
7.4.100.0180.00016.66
7.4.90.0160.00716.50
7.4.80.0110.01119.39
7.4.70.0030.01516.70
7.4.60.0140.00716.43
7.4.50.0020.00216.25
7.4.40.0070.01016.54
7.4.30.0050.01116.42
7.4.00.0090.00714.94
7.3.330.0050.00213.26
7.3.320.0000.00513.45
7.3.310.0000.00716.50
7.3.300.0070.00016.48
7.3.290.0120.00816.43
7.3.280.0090.00916.44
7.3.270.0090.00917.40
7.3.260.0150.00416.49
7.3.250.0150.00416.53
7.3.240.0180.00416.68
7.3.230.0140.00316.39
7.3.210.0140.00616.68
7.3.200.0030.01319.39
7.3.190.0070.01016.43
7.3.180.0070.01016.31
7.3.170.0100.00716.53
7.3.160.0170.00016.46
7.3.120.0080.00814.88
7.3.110.0110.00714.88
7.3.100.0090.00514.77
7.3.90.0080.00814.82
7.3.80.0080.00714.81
7.3.70.0090.00714.91
7.3.60.0060.01014.79
7.3.50.0050.01014.85
7.3.40.0070.00914.93
7.3.30.0050.01114.73
7.3.20.0090.00616.76
7.3.10.0090.00516.79
7.3.00.0040.00916.64
7.2.330.0160.00916.87
7.2.320.0100.01016.57
7.2.310.0150.00416.77
7.2.300.0060.01116.81
7.2.290.0070.01016.87
7.2.250.0140.00515.17
7.2.240.0060.01215.11
7.2.230.0040.01015.32
7.2.220.0050.01015.15
7.2.210.0060.00814.96
7.2.200.0080.00915.00
7.2.190.0050.01014.94
7.2.180.0050.00915.09
7.2.170.0060.00914.94
7.2.160.0070.01015.25
7.2.150.0060.00916.90
7.2.140.0070.01016.96
7.2.130.0070.01016.90
7.2.120.0110.00416.64
7.2.110.0030.01016.89
7.2.100.0170.00016.93
7.2.90.0110.00716.86
7.2.80.0030.01416.94
7.2.70.0100.00716.92
7.2.60.0060.00716.94
7.2.50.0030.01216.79
7.2.40.0090.00616.96
7.2.30.0110.00417.04
7.2.20.0150.00417.01
7.2.10.0070.01016.79
7.2.00.0050.00818.12
7.1.330.0060.00615.79
7.1.320.0090.00615.78
7.1.310.0060.00515.81
7.1.300.0080.00815.79
7.1.290.0030.00815.78
7.1.280.0060.00915.78
7.1.270.0070.00715.79
7.1.260.0040.00815.84
7.1.250.0070.00715.87
7.1.200.0070.00315.75
7.1.100.0030.00818.15
7.1.70.0030.00517.38
7.1.60.0130.01319.46
7.1.50.0070.01316.94
7.1.00.0000.08022.30
7.0.200.0070.00016.67
7.0.140.0000.07722.22
7.0.60.0000.07319.97
7.0.50.0000.05317.90
7.0.40.0030.04320.27
7.0.30.0200.05320.34
7.0.20.0170.04020.24
7.0.10.0200.07320.30
7.0.00.0070.04020.15
5.6.280.0130.06320.83
5.6.210.0030.04720.52
5.6.200.0070.07318.16
5.6.190.0030.05020.46
5.6.180.0230.06720.50
5.6.170.0300.05020.48
5.6.160.0100.03320.70
5.6.150.0100.07718.18
5.6.140.0100.08018.19
5.6.130.0070.04018.14
5.6.120.0130.04721.06
5.6.110.0130.05321.02
5.6.100.0030.09321.15
5.6.90.0100.08721.05
5.6.80.0130.07320.38
5.6.70.0030.04320.57
5.5.350.0100.08020.40
5.5.340.0070.05318.09
5.5.330.0030.04320.27
5.5.320.0070.07020.30
5.5.310.0300.09020.27
5.5.300.0100.07718.08
5.5.290.0100.04717.93
5.5.280.0130.05320.86
5.5.270.0030.04320.77
5.5.260.0170.08020.77
5.5.250.0070.08320.55
5.5.240.0070.07720.29
5.4.450.0870.05319.57
5.4.440.0630.05719.45
5.4.430.1000.06019.52
5.4.420.0830.08719.45
5.4.410.0600.05719.42
5.4.400.0970.05719.23
5.4.390.0870.04719.19
5.4.380.0170.05718.71
5.4.370.0170.04718.57
5.4.360.0130.06018.45
5.4.350.0300.05018.50
5.4.340.0230.05018.45
5.4.320.0060.03612.51
5.4.310.0050.03912.51
5.4.300.0070.04712.52
5.4.290.0100.04712.51
5.4.280.0100.04112.40
5.4.270.0070.05012.41
5.4.260.0260.08012.41
5.4.250.0090.08412.41
5.4.240.0300.12712.41
5.4.230.0190.08112.40
5.4.220.0240.11112.39
5.4.210.0210.06312.40
5.4.200.0150.05712.39
5.4.190.0100.06212.39
5.4.180.0140.07012.40
5.4.170.0130.06112.40
5.4.160.0060.07312.40
5.4.150.0160.04912.39
5.4.140.0080.04912.08
5.4.130.0090.04512.07
5.4.120.0140.04812.03
5.4.110.0100.04912.02
5.4.100.0100.05112.02
5.4.90.0180.05612.02
5.4.80.0150.05812.02
5.4.70.0090.04912.01
5.4.60.0100.05012.01
5.4.50.0060.06112.02
5.4.40.0120.05412.00
5.4.30.0350.06112.00
5.4.20.0280.06412.00
5.4.10.0120.04712.00
5.4.00.0080.06011.49
5.3.290.0050.04012.80
5.3.280.0130.05612.71
5.3.270.0200.06712.72
5.3.260.0130.06312.72
5.3.250.0070.05812.72
5.3.240.0140.05312.72
5.3.230.0150.04712.70
5.3.220.0130.06712.68
5.3.210.0100.05812.68
5.3.200.0100.05012.68
5.3.190.0090.05212.68
5.3.180.0280.08812.67
5.3.170.0240.10212.67
5.3.160.0160.06812.68
5.3.150.0110.05112.67
5.3.140.0140.05012.66
5.3.130.0110.04812.65
5.3.120.0100.04812.66
5.3.110.0130.06312.66
5.3.100.0140.04812.14
5.3.90.0240.07512.11
5.3.80.0120.04612.11
5.3.70.0060.04612.11
5.3.60.0100.03912.09
5.3.50.0090.04312.04
5.3.40.0070.04312.04
5.3.30.0060.04311.99
5.3.20.0070.04311.78
5.3.10.0120.03911.75
5.3.00.0130.04411.73
5.2.170.0080.0409.24
5.2.160.0140.0309.24
5.2.150.0140.0319.24
5.2.140.0110.0549.23
5.2.130.0110.0359.20
5.2.120.0090.0419.20
5.2.110.0100.0409.20
5.2.100.0170.0329.19
5.2.90.0080.0449.19
5.2.80.0160.0529.19
5.2.70.0140.0379.18
5.2.60.0060.0469.14
5.2.50.0110.0439.11
5.2.40.0090.0389.09
5.2.30.0080.0439.06
5.2.20.0220.0719.05
5.2.10.0120.0428.96
5.2.00.0080.0498.82
5.1.60.0070.0388.11
5.1.50.0090.0368.10
5.1.40.0060.0318.08
5.1.30.0050.0498.43
5.1.20.0130.0348.46
5.1.10.0060.0388.18
5.1.00.0090.0478.18
5.0.50.0130.0336.66
5.0.40.0210.0476.53
5.0.30.0090.0776.33
5.0.20.0080.0486.30
5.0.10.0070.0436.29
5.0.00.0040.0406.28
4.4.90.0040.0244.78
4.4.80.0040.0244.75
4.4.70.0040.0304.75
4.4.60.0050.0224.75
4.4.50.0100.0444.77
4.4.40.0150.0694.71
4.4.30.0030.0514.76
4.4.20.0060.0294.84
4.4.10.0100.0404.85
4.4.00.0110.0464.76
4.3.110.0070.0534.67
4.3.100.0040.0224.66
4.3.90.0090.0354.64
4.3.80.0020.0344.59
4.3.70.0030.0224.63
4.3.60.0040.0204.63
4.3.50.0120.0364.63
4.3.40.0070.0284.54
4.3.30.0020.0323.33
4.3.20.0030.0333.31
4.3.10.0100.0423.27
4.3.00.0100.0136.95

preferences:
36.64 ms | 401 KiB | 5 Q