3v4l.org

run code in 300+ PHP versions simultaneously
<?php function ack($m, $n) { if (!$m) return ++$n; elseif (!$n) return ack($m-1, 1); return ack($m-1, ack($m, $n-1)); } echo ack(3, 2);

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)
8.3.70.0080.00816.63
8.3.60.0070.01416.63
8.3.50.0040.01121.97
8.3.40.0090.00618.70
8.3.30.0110.00319.04
8.3.20.0000.00820.33
8.3.10.0080.00023.65
8.3.00.0060.00319.19
8.2.180.0040.01218.06
8.2.170.0090.00922.96
8.2.160.0070.00720.38
8.2.150.0090.00624.18
8.2.140.0110.00724.66
8.2.130.0070.00026.16
8.2.120.0070.00419.23
8.2.110.0070.00722.27
8.2.100.0090.00322.08
8.2.90.0050.00319.17
8.2.80.0040.00417.97
8.2.70.0030.00617.38
8.2.60.0000.00817.90
8.2.50.0030.00618.07
8.2.40.0030.00619.82
8.2.30.0030.00718.25
8.2.20.0040.00417.50
8.2.10.0030.00517.98
8.2.00.0070.00019.48
8.1.280.0110.00425.92
8.1.270.0080.00022.09
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0100.00022.20
8.1.230.0080.00419.01
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0030.00617.23
8.1.190.0040.00417.23
8.1.180.0060.00318.10
8.1.170.0000.00818.66
8.1.160.0030.00322.02
8.1.150.0000.00718.44
8.1.140.0070.00017.30
8.1.130.0070.00017.63
8.1.120.0070.00417.40
8.1.110.0070.00317.41
8.1.100.0070.00017.38
8.1.90.0000.00717.39
8.1.80.0030.00417.41
8.1.70.0040.00417.34
8.1.60.0050.00317.42
8.1.50.0030.00517.47
8.1.40.0050.00217.44
8.1.30.0040.00417.50
8.1.20.0030.00617.61
8.1.10.0070.00017.47
8.1.00.0030.00617.38
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0040.00418.37
8.0.270.0030.00317.19
8.0.260.0060.00017.06
8.0.250.0040.00416.82
8.0.240.0030.00516.82
8.0.230.0000.00816.77
8.0.220.0030.00316.71
8.0.210.0050.00216.75
8.0.200.0000.00616.76
8.0.190.0030.00316.93
8.0.180.0070.00316.89
8.0.170.0060.00316.87
8.0.160.0000.00716.89
8.0.150.0000.00716.74
8.0.140.0070.00016.75
8.0.130.0030.00313.25
8.0.120.0080.00016.83
8.0.110.0000.00716.91
8.0.100.0000.00716.85
8.0.90.0040.00416.89
8.0.80.0070.00716.83
8.0.70.0000.00716.67
8.0.60.0000.00716.80
8.0.50.0050.00316.66
8.0.30.0070.01216.86
8.0.20.0120.00717.40
8.0.10.0000.00716.87
8.0.00.0070.01016.67
7.4.330.0030.00315.00
7.4.320.0000.00616.34
7.4.300.0000.00616.51
7.4.290.0030.00316.42
7.4.280.0030.00316.49
7.4.270.0000.00716.55
7.4.260.0070.00016.46
7.4.250.0050.00316.30
7.4.240.0000.00816.49
7.4.230.0070.00016.54
7.4.220.0090.01216.49
7.4.210.0030.01016.61
7.4.200.0040.00416.58
7.4.160.0060.01016.50
7.4.150.0060.01317.40
7.4.140.0050.01417.86
7.4.130.0110.00916.46
7.4.120.0130.00516.51
7.4.110.0090.00916.42
7.4.100.0100.00716.57
7.4.90.0120.01216.31
7.4.80.0060.01419.39
7.4.70.0100.01016.47
7.4.60.0070.01316.33
7.4.50.0000.00816.55
7.4.40.0090.00616.29
7.4.30.0060.00916.34
7.4.00.0030.00914.99
7.3.330.0050.00013.34
7.3.320.0050.00013.25
7.3.310.0030.00316.27
7.3.300.0000.00716.25
7.3.290.0070.01016.36
7.3.280.0090.00916.31
7.3.270.0130.00317.40
7.3.260.0090.01016.56
7.3.250.0100.00916.28
7.3.240.0090.01216.60
7.3.230.0060.01216.42
7.3.210.0090.00916.44
7.3.200.0030.01119.39
7.3.190.0170.00316.33
7.3.180.0080.00816.40
7.3.170.0130.00316.58
7.3.160.0100.00716.27
7.3.120.0080.00415.01
7.3.10.0040.00816.66
7.3.00.0100.00316.70
7.2.330.0060.01216.86
7.2.320.0090.00816.54
7.2.310.0100.01316.77
7.2.300.0170.00316.86
7.2.290.0060.00916.55
7.2.130.0090.00316.92
7.2.120.0030.01016.99
7.2.110.0070.00316.86
7.2.100.0030.01016.90
7.2.90.0100.00016.92
7.2.80.0100.00716.92
7.2.70.0000.01116.84
7.2.60.0100.00316.68
7.2.50.0080.00817.01
7.2.40.0060.00617.03
7.2.30.0060.00616.82
7.2.20.0100.00016.96
7.2.10.0080.00817.05
7.2.00.0020.01118.13
7.1.250.0030.01015.75
7.1.100.0040.00718.03
7.1.70.0050.00317.00
7.1.60.0070.01819.70
7.1.50.0100.00616.73
7.1.00.0030.07322.41
7.0.200.0030.00616.93
7.0.140.0030.07321.96
7.0.60.0100.06719.79
7.0.50.0100.06317.84
7.0.40.0030.06320.30
7.0.30.0370.07320.35
7.0.20.0200.08320.12
7.0.10.0000.06020.19
7.0.00.0030.04320.22
5.6.280.0030.07320.93
5.6.210.0100.07720.55
5.6.200.0130.04718.22
5.6.190.0070.05320.63
5.6.180.0230.06320.64
5.6.170.0170.05720.51
5.6.160.0000.06720.61
5.6.150.0070.03718.16
5.6.140.0070.07318.25
5.6.130.0070.07718.12
5.6.120.0130.07721.02
5.6.110.0100.08021.09
5.6.100.0000.04320.98
5.6.90.0100.08320.95
5.6.80.0100.07720.54
5.5.350.4230.04020.40
5.5.340.0070.08318.05
5.5.330.0070.06020.25
5.5.320.0300.07720.34
5.5.310.0300.07320.38
5.5.300.0070.03717.98
5.5.290.0000.04318.02
5.5.280.0100.07720.80
5.5.270.0170.07320.88
5.5.260.0100.05320.76
5.5.250.0100.07720.61
5.5.240.0000.08020.36
5.4.450.0230.04321.13
5.4.440.0200.04720.17
5.4.430.0400.04019.76
5.4.420.0300.04019.50
5.4.410.0370.03719.19
5.4.400.0330.04319.09
5.4.390.0600.02718.95
5.4.380.0330.08018.73
5.4.370.0300.05718.63
5.4.360.0300.05018.61
5.4.350.1000.04718.73
5.4.340.0600.04718.74
5.4.320.0050.04412.52
5.4.310.0100.03912.51
5.4.300.0050.03812.52
5.4.290.0060.03912.50
5.4.280.0060.03912.41
5.4.270.0090.03712.41
5.4.260.0080.04012.40
5.4.250.0080.05012.41
5.4.240.0060.04412.40
5.4.230.0080.03612.39
5.4.220.0080.04712.40
5.4.210.0090.04212.40
5.4.200.0060.03812.39
5.4.190.0010.04512.39
5.4.180.0080.03412.40
5.4.170.0090.04612.40
5.4.160.0110.03812.39
5.4.150.0120.04412.39
5.4.140.0080.04712.08
5.4.130.0100.04012.07
5.4.120.0090.04412.03
5.4.110.0060.04112.02
5.4.100.0060.03712.02
5.4.90.0060.03912.02
5.4.80.0090.03912.02
5.4.70.0090.04012.02
5.4.60.0090.04312.02
5.4.50.0110.03412.02
5.4.40.0070.03512.00
5.4.30.0070.03612.00
5.4.20.0090.03312.00
5.4.10.0070.03512.00
5.4.00.0080.03611.50
5.3.290.0080.04812.80
5.3.280.0060.04312.71
5.3.270.0040.04312.72
5.3.260.0130.03612.72
5.3.250.0080.05012.72
5.3.240.0050.05312.72
5.3.230.0070.05012.71
5.3.220.0110.04812.68
5.3.210.0060.05512.68
5.3.200.0050.05612.68
5.3.190.0090.05512.68
5.3.180.0110.05012.67
5.3.170.0150.04912.67
5.3.160.0170.04212.68
5.3.150.0090.05212.68
5.3.140.0080.04912.66
5.3.130.0070.04212.66
5.3.120.0070.05212.66
5.3.110.0110.04112.66
5.3.100.0040.04012.11
5.3.90.0090.04212.10
5.3.80.0090.04412.09
5.3.70.0030.04012.09
5.3.60.0040.03912.07
5.3.50.0080.03512.02
5.3.40.0070.03712.02
5.3.30.0030.03711.98
5.3.20.0050.03611.76
5.3.10.0080.03211.73
5.3.00.0060.03611.72
5.2.170.0040.0319.23
5.2.160.0040.0299.23
5.2.150.0040.0319.23
5.2.140.0050.0349.23
5.2.130.0050.0299.19
5.2.120.0040.0299.19
5.2.110.0040.0319.20
5.2.100.0050.0289.20
5.2.90.0080.0269.20
5.2.80.0060.0299.19
5.2.70.0060.0399.19
5.2.60.0100.0379.14
5.2.50.0070.0409.11
5.2.40.0090.0359.09
5.2.30.0050.0369.07
5.2.20.0050.0309.06
5.2.10.0080.0308.96
5.2.00.0070.0288.83
5.1.60.0050.0258.11
5.1.50.0070.0238.11
5.1.40.0090.0218.08
5.1.30.0060.0268.44
5.1.20.0070.0268.46
5.1.10.0080.0248.18
5.1.00.0010.0338.18
5.0.50.0060.0266.67
5.0.40.0050.0256.53
5.0.30.0060.0406.34
5.0.20.0060.0246.31
5.0.10.0050.0276.29
5.0.00.0020.0406.27
4.4.90.0020.0174.77
4.4.80.0050.0134.75
4.4.70.0040.0144.76
4.4.60.0040.0144.75
4.4.50.0050.0144.77
4.4.40.0050.0244.75
4.4.30.0040.0184.76
4.4.20.0010.0184.84
4.4.10.0010.0184.85
4.4.00.0020.0264.78
4.3.110.0040.0164.67
4.3.100.0000.0184.67
4.3.90.0030.0144.63
4.3.80.0040.0244.59
4.3.70.0010.0164.63
4.3.60.0020.0164.63
4.3.50.0040.0154.63
4.3.40.0070.0204.54
4.3.30.0030.0163.35
4.3.20.0010.0213.39
4.3.10.0030.0203.29
4.3.00.0070.01316.70

preferences:
39.88 ms | 401 KiB | 5 Q