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("aaa","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)
8.3.60.0090.00616.50
8.3.50.0130.00321.95
8.3.40.0070.00718.71
8.3.30.0000.01419.09
8.3.20.0000.00720.25
8.3.10.0040.00423.45
8.3.00.0050.00319.18
8.2.180.0040.01116.61
8.2.170.0120.00322.96
8.2.160.0070.00720.35
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0080.00017.75
8.2.110.0000.01022.32
8.2.100.0090.00317.78
8.2.90.0000.00817.75
8.2.80.0030.00518.84
8.2.70.0060.00317.93
8.2.60.0080.00018.09
8.2.50.0080.00018.10
8.2.40.0040.00819.35
8.2.30.0000.00819.87
8.2.20.0030.00517.79
8.2.10.0040.00418.11
8.2.00.0050.00317.74
8.1.280.0140.00025.92
8.1.270.0060.00323.79
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0000.01222.05
8.1.230.0110.00017.76
8.1.220.0050.00317.74
8.1.210.0060.00318.77
8.1.200.0030.00717.36
8.1.190.0060.00317.50
8.1.180.0000.00818.10
8.1.170.0040.00418.65
8.1.160.0030.00518.84
8.1.150.0000.00818.51
8.1.140.0070.00017.45
8.1.130.0040.00417.74
8.1.120.0050.00317.39
8.1.110.0000.00717.45
8.1.100.0050.00217.40
8.1.90.0000.00717.30
8.1.80.0000.00717.46
8.1.70.0040.00417.33
8.1.60.0050.00317.50
8.1.50.0000.00817.50
8.1.40.0030.00517.38
8.1.30.0080.00017.43
8.1.20.0000.00817.59
8.1.10.0000.00717.57
8.1.00.0030.00517.44
8.0.300.0040.00419.85
8.0.290.0040.00416.75
8.0.280.0000.00718.41
8.0.270.0050.00318.02
8.0.260.0030.00317.09
8.0.250.0090.00016.88
8.0.240.0030.00317.00
8.0.230.0040.00416.98
8.0.220.0000.00716.80
8.0.210.0000.00716.97
8.0.200.0030.00316.96
8.0.190.0000.00816.96
8.0.180.0040.00416.93
8.0.170.0000.00816.87
8.0.160.0000.00716.99
8.0.150.0030.00316.98
8.0.140.0040.00416.82
8.0.130.0050.00013.39
8.0.120.0040.00416.87
8.0.110.0070.00016.93
8.0.100.0000.00716.96
8.0.90.0070.00017.04
8.0.80.0040.01116.93
8.0.70.0030.00517.09
8.0.60.0000.00816.98
8.0.50.0040.00416.82
8.0.30.0100.00917.16
8.0.20.0070.01217.40
8.0.10.0050.00217.02
8.0.00.0070.01116.76
7.4.330.0050.00015.14
7.4.320.0000.00616.63
7.4.300.0000.00716.57
7.4.290.0070.00016.62
7.4.280.0000.00716.63
7.4.270.0070.00016.51
7.4.260.0030.00316.64
7.4.250.0000.00716.62
7.4.240.0030.00516.54
7.4.230.0030.00316.40
7.4.220.0060.01216.73
7.4.210.0100.00516.70
7.4.200.0030.00316.61
7.4.190.0050.00216.61
7.4.160.0100.00716.67
7.4.150.0070.01117.40
7.4.140.0130.00517.86
7.4.130.0050.01216.55
7.4.120.0080.01416.54
7.4.110.0090.00916.54
7.4.100.0090.01416.46
7.4.90.0050.01316.42
7.4.80.0130.00919.39
7.4.70.0130.00316.67
7.4.60.0100.00716.39
7.4.50.0060.00316.42
7.4.40.0060.01116.46
7.4.30.0060.01216.54
7.4.00.0050.01114.99
7.3.330.0060.00313.30
7.3.320.0050.00013.45
7.3.310.0040.00416.60
7.3.300.0040.00416.49
7.3.290.0060.01316.43
7.3.280.0090.01016.42
7.3.270.0090.00917.40
7.3.260.0070.01016.39
7.3.250.0150.00416.46
7.3.240.0090.01216.42
7.3.230.0050.01116.65
7.3.210.0150.00316.60
7.3.200.0110.00719.39
7.3.190.0070.01016.58
7.3.180.0090.00616.30
7.3.170.0090.00816.64
7.3.160.0080.00816.49
7.3.120.0110.00514.92
7.3.110.0070.01014.84
7.3.100.0030.01414.94
7.3.90.0040.00714.82
7.3.80.0040.00714.68
7.3.70.0100.00614.87
7.3.60.0070.00714.98
7.3.50.0030.00615.03
7.3.40.0030.01014.75
7.3.30.0030.00514.96
7.3.20.0060.00616.75
7.3.10.0070.00616.68
7.3.00.0020.01116.73
7.2.330.0120.00616.62
7.2.320.0110.00716.80
7.2.310.0060.01216.55
7.2.300.0030.02116.68
7.2.290.0060.01216.71
7.2.250.0040.01415.04
7.2.240.0000.01715.07
7.2.230.0070.01015.36
7.2.220.0030.01114.98
7.2.210.0030.01515.03
7.2.200.0030.01615.05
7.2.190.0040.01415.07
7.2.180.0070.00714.68
7.2.170.0030.01415.21
7.2.130.0040.00716.66
7.2.120.0090.00316.88
7.2.110.0040.00416.53
7.2.100.0030.01116.69
7.2.90.0090.00616.77
7.2.80.0060.00816.88
7.2.70.0050.00517.07
7.2.60.0050.01016.66
7.2.50.0040.00816.96
7.2.40.0070.00417.07
7.2.30.0030.01016.80
7.2.20.0090.00317.02
7.2.10.0000.01217.21
7.2.00.0100.00318.25
7.1.330.0090.00315.54
7.1.320.0070.00315.85
7.1.310.0060.01015.70
7.1.300.0060.00615.68
7.1.290.0000.00915.71
7.1.280.0000.01316.01
7.1.270.0060.00615.77
7.1.260.0070.00415.70
7.1.250.0040.00815.82
7.1.200.0030.00315.82
7.1.100.0040.00718.27
7.1.70.0020.00517.34
7.1.60.0070.01719.46
7.1.50.0070.01416.94
7.1.00.0030.07322.36
7.0.200.0000.00716.72
7.0.140.0030.07322.07
7.0.60.0130.07319.95
7.0.50.0030.04017.89
7.0.40.0130.08020.21
7.0.30.0430.06720.25
7.0.20.0130.05020.23
7.0.10.0300.07720.15
7.0.00.0070.06320.25
5.6.280.0130.06321.15
5.6.210.0070.04720.48
5.6.200.0100.08318.18
5.6.190.0100.05320.64
5.6.180.3700.04720.56
5.6.170.0230.08020.56
5.6.160.0030.08720.50
5.6.150.0030.04018.15
5.6.140.0170.07318.19
5.6.130.0030.06718.17
5.6.120.0100.05320.99
5.6.110.0070.08721.03
5.6.100.0000.07721.14
5.6.90.0130.05321.13
5.6.80.0130.06320.41
5.6.70.0230.07720.54
5.5.350.0130.08020.39
5.5.340.0100.07018.02
5.5.330.0170.07320.42
5.5.320.0270.05020.36
5.5.310.0300.06020.30
5.5.300.0030.04018.07
5.5.290.0100.04717.98
5.5.280.0170.07320.96
5.5.270.0200.07020.87
5.5.260.0100.08320.77
5.5.250.0100.08320.61
5.5.240.0070.07720.25
5.4.450.1070.05019.64
5.4.440.0800.07019.58
5.4.430.1130.06719.60
5.4.420.0630.00019.32
5.4.410.0170.05319.05
5.4.400.0230.04718.55
5.4.390.0230.05318.54
5.4.380.0230.05718.51
5.4.370.0030.04018.84
5.4.360.0070.05318.57
5.4.350.0070.03812.02
5.4.340.0100.04012.02
5.4.320.0060.04612.51
5.4.310.0110.04112.50
5.4.300.0080.04712.51
5.4.290.0080.06012.51
5.4.280.0170.06112.41
5.4.270.0110.04512.41
5.4.260.0090.05212.40
5.4.250.0120.04612.40
5.4.240.0080.05012.41
5.4.230.0080.05312.40
5.4.220.0110.04812.39
5.4.210.0110.05012.40
5.4.200.0100.05312.40
5.4.190.0120.05012.39
5.4.180.0120.05112.39
5.4.170.0070.05412.40
5.4.160.0140.04012.40
5.4.150.0070.04712.39
5.4.140.0070.05112.07
5.4.130.0070.05612.07
5.4.120.0100.04612.02
5.4.110.0100.04612.02
5.4.100.0090.04412.02
5.4.90.0130.04412.02
5.4.80.0080.05012.02
5.4.70.0070.04812.02
5.4.60.0090.04612.02
5.4.50.0070.05212.02
5.4.40.0110.04912.01
5.4.30.0140.04712.00
5.4.20.0160.07512.00
5.4.10.0210.10612.00
5.4.00.0070.05411.49
5.3.290.0060.04812.80
5.3.280.0070.07912.71
5.3.270.0110.07212.73
5.3.260.0110.06612.72
5.3.250.0100.07612.72
5.3.240.0080.05812.72
5.3.230.0110.05112.71
5.3.220.0110.05312.68
5.3.210.0150.05312.68
5.3.200.0140.05712.68
5.3.190.0120.04412.68
5.3.180.0100.04612.68
5.3.170.0090.04912.67
5.3.160.0100.03912.68
5.3.150.0110.04312.68
5.3.140.0100.03612.66
5.3.130.0080.04012.66
5.3.120.0070.03912.66
5.3.110.0070.03812.66
5.3.100.0070.03712.13
5.3.90.0060.04012.11
5.3.80.0090.03812.11
5.3.70.0100.04312.11
5.3.60.0110.04612.09
5.3.50.0150.04212.04
5.3.40.0110.04612.04
5.3.30.0070.05011.99
5.3.20.0060.05011.78
5.3.10.0130.04411.75
5.3.00.0060.05211.73
5.2.170.0040.0449.23
5.2.160.0050.0479.24
5.2.150.0090.0409.24
5.2.140.0050.0489.23
5.2.130.0050.0429.19
5.2.120.0100.0319.19
5.2.110.0140.0399.20
5.2.100.0080.0419.19
5.2.90.0070.0439.19
5.2.80.0070.0429.18
5.2.70.0140.0509.19
5.2.60.0070.0679.14
5.2.50.0060.0389.11
5.2.40.0060.0329.09
5.2.30.0060.0309.06
5.2.20.0040.0309.05
5.2.10.0070.0288.96
5.2.00.0060.0298.82
5.1.60.0070.0258.10
5.1.50.0060.0258.10
5.1.40.0020.0288.09
5.1.30.0020.0298.43
5.1.20.0030.0298.46
5.1.10.0060.0298.18
5.1.00.0050.0278.18
5.0.50.0000.0256.66
5.0.40.0040.0206.52
5.0.30.0050.0336.33
5.0.20.0060.0186.30
5.0.10.0030.0216.29
5.0.00.0050.0336.28
4.4.90.0030.0224.77
4.4.80.0040.0224.75
4.4.70.0030.0154.76
4.4.60.0000.0194.76
4.4.50.0040.0234.77
4.4.40.0010.0304.71
4.4.30.0060.0144.76
4.4.20.0040.0224.84
4.4.10.0070.0234.85
4.4.00.0040.0294.76
4.3.110.0050.0204.67
4.3.100.0020.0254.66
4.3.90.0020.0244.63
4.3.80.0050.0324.59
4.3.70.0040.0194.63
4.3.60.0170.0414.63
4.3.50.0050.0164.63
4.3.40.0040.0234.54
4.3.30.0020.0183.33
4.3.20.0060.0133.31
4.3.10.0010.0193.27
4.3.00.0070.0237.60

preferences:
56.15 ms | 401 KiB | 5 Q