3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a() { function b() { echo 1; } } a(); b();

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)
8.3.40.0070.00718.52
8.3.30.0140.00019.06
8.3.20.0000.00720.34
8.3.10.0070.00021.85
8.3.00.0040.00419.00
8.2.170.0070.01022.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0050.00322.25
8.2.110.0060.00322.11
8.2.100.0060.00617.84
8.2.90.0040.00419.13
8.2.80.0000.00718.04
8.2.70.0080.00017.48
8.2.60.0070.00017.80
8.2.50.0050.00318.07
8.2.40.0040.00419.84
8.2.30.0070.00018.05
8.2.20.0040.00417.48
8.2.10.0040.00417.88
8.2.00.0040.00417.61
8.1.270.0030.00524.02
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0030.00623.82
8.1.230.0070.00319.14
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0080.00017.35
8.1.190.0030.00517.30
8.1.180.0050.00518.10
8.1.170.0050.00318.47
8.1.160.0050.00222.00
8.1.150.0000.00818.55
8.1.140.0030.00617.38
8.1.130.0000.00617.76
8.1.120.0030.00517.41
8.1.110.0070.00017.37
8.1.100.0000.01017.24
8.1.90.0040.00417.41
8.1.80.0030.00317.42
8.1.70.0070.00017.38
8.1.60.0000.00817.39
8.1.50.0040.00417.42
8.1.40.0050.00317.38
8.1.30.0040.00417.55
8.1.20.0000.00717.53
8.1.10.0070.00017.42
8.1.00.0000.00817.23
8.0.300.0000.00718.77
8.0.290.0070.00017.15
8.0.280.0070.00018.30
8.0.270.0040.00417.07
8.0.260.0000.00617.19
8.0.250.0070.00016.92
8.0.240.0030.00316.94
8.0.230.0040.00416.92
8.0.220.0030.00316.84
8.0.210.0070.00016.79
8.0.200.0000.00716.84
8.0.190.0020.00516.84
8.0.180.0030.00716.82
8.0.170.0080.00016.80
8.0.160.0040.00416.78
8.0.150.0040.00416.83
8.0.140.0040.00416.77
8.0.130.0040.00413.23
8.0.120.0070.00016.86
8.0.110.0050.00216.83
8.0.100.0000.00716.81
8.0.90.0000.00816.69
8.0.80.0060.01516.70
8.0.70.0030.00316.88
8.0.60.0020.00516.92
8.0.50.0040.00416.94
8.0.30.0050.01416.89
8.0.20.0050.01317.40
8.0.10.0050.00216.83
8.0.00.0090.00916.80
7.4.330.0050.00015.00
7.4.320.0060.00016.41
7.4.300.0070.00016.36
7.4.290.0070.00016.43
7.4.280.0040.00416.42
7.4.270.0060.00316.44
7.4.260.0040.00416.44
7.4.250.0040.00416.46
7.4.240.0030.00416.43
7.4.230.0000.00716.41
7.4.220.0060.01216.48
7.4.210.0080.00816.48
7.4.200.0000.00816.52
7.4.190.0070.00016.49
7.4.160.0080.00816.32
7.4.150.0000.02117.40
7.4.140.0090.01117.86
7.4.130.0130.00316.62
7.4.120.0110.00616.44
7.4.110.0100.00716.32
7.4.100.0150.00316.41
7.4.90.0090.01616.40
7.4.80.0080.00819.39
7.4.70.0170.00016.55
7.4.60.0060.01016.39
7.4.50.0040.00416.33
7.4.40.0030.01322.77
7.4.30.0070.00716.28
7.4.00.0060.00914.96
7.3.330.0000.00613.23
7.3.320.0000.00513.08
7.3.310.0040.00416.12
7.3.300.0060.00016.09
7.3.290.0060.00916.25
7.3.280.0100.00716.22
7.3.270.0130.00317.40
7.3.260.0100.01016.32
7.3.250.0140.00616.36
7.3.240.0100.01316.38
7.3.230.0100.00716.52
7.3.210.0180.00616.30
7.3.200.0090.01219.39
7.3.190.0120.00916.37
7.3.180.0080.00816.34
7.3.170.0050.01016.48
7.3.160.0060.00916.32
7.3.120.0070.01014.91
7.2.330.0140.00416.30
7.2.320.0110.00716.58
7.2.310.0070.01716.68
7.2.300.0060.00916.63
7.2.290.0070.01316.61
7.2.00.0060.00619.46
7.1.100.0000.01718.20
7.1.70.0000.01616.95
7.1.60.0100.01319.46
7.1.50.0190.00616.75
7.1.00.0070.07022.41
7.0.200.0000.00716.66
7.0.140.0030.07321.96
7.0.70.0000.08321.75
7.0.60.0030.08321.72
7.0.50.0070.08322.09
7.0.40.0070.07020.17
7.0.30.0030.06720.11
7.0.20.0030.08020.07
7.0.10.0030.08720.07
7.0.00.0100.08320.07
5.6.280.0030.07321.02
5.6.220.0070.07720.68
5.6.210.0030.08020.64
5.6.200.0130.06021.18
5.6.190.0070.08320.96
5.6.180.0030.04320.95
5.6.170.0030.08021.11
5.6.160.0030.07321.01
5.6.150.0100.07721.04
5.6.140.0030.05321.07
5.6.130.0230.03320.95
5.6.120.0070.05021.03
5.6.110.0070.08020.93
5.6.100.0000.06720.95
5.6.90.0070.08021.00
5.6.80.0170.07320.34
5.6.70.0000.08020.43
5.6.60.0030.04020.41
5.6.50.0100.06320.43
5.6.40.0100.07020.39
5.6.30.0100.08020.30
5.6.20.0030.09320.38
5.6.10.0000.07720.36
5.6.00.0000.08720.43
5.5.360.0000.06720.36
5.5.350.0100.08020.47
5.5.340.0030.08320.89
5.5.330.0070.08020.76
5.5.320.0000.08020.73
5.5.310.0030.07320.83
5.5.300.0030.08720.88
5.5.290.0030.07320.92
5.5.280.0070.08320.93
5.5.270.0030.09020.80
5.5.260.0130.07720.91
5.5.250.0030.05320.71
5.5.240.0070.06320.03
5.5.230.0070.07720.20
5.5.220.0000.08020.25
5.5.210.0130.07020.27
5.5.200.0000.08020.11
5.5.190.0070.09320.13
5.5.180.0070.04320.15
5.5.160.0000.07320.20
5.5.150.0000.06320.12
5.5.140.0070.08020.08
5.5.130.0100.06720.13
5.5.120.0000.04319.99
5.5.110.0070.04720.17
5.5.100.0030.04720.07
5.5.90.0030.08320.00
5.5.80.0000.05320.16
5.5.70.0070.06320.04
5.5.60.0000.07320.05
5.5.50.0030.04020.15
5.5.40.0070.07320.15
5.5.30.0030.06320.00
5.5.20.0070.07020.14
5.5.10.0030.08320.06
5.5.00.0100.07020.09
5.4.450.0030.08019.57
5.4.440.0100.07719.38
5.4.430.0070.07719.27
5.4.420.0000.04319.44
5.4.410.0070.07319.04
5.4.400.0030.07319.13
5.4.390.0000.08019.18
5.4.380.0000.05719.03
5.4.370.0070.05319.14
5.4.360.0070.08019.16
5.4.350.0070.07719.05
5.4.340.0000.07718.88
5.4.320.0070.06318.85
5.4.310.0030.07718.95
5.4.300.0030.04019.09
5.4.290.0070.08019.09
5.4.280.0000.04319.25
5.4.270.0070.03319.03
5.4.260.0030.06018.90
5.4.250.0030.07318.87
5.4.240.0070.06318.94
5.4.230.0000.08318.89
5.4.220.0070.03718.87
5.4.210.0030.04019.22
5.4.200.0070.06719.13
5.4.190.0030.07719.18
5.4.180.0000.07719.07
5.4.170.0070.08019.12
5.4.160.0030.07319.14
5.4.150.0030.08319.19
5.4.140.0000.06316.51
5.4.130.0030.07316.38
5.4.120.0070.07016.46
5.4.110.0030.07016.39
5.4.100.0070.07316.46
5.4.90.0000.05016.45
5.4.80.0070.05016.38
5.4.70.0000.08016.37
5.4.60.0000.05016.25
5.4.50.0030.05716.30
5.4.40.0000.06016.42
5.4.30.0030.04716.40
5.4.20.0030.04016.47
5.4.10.0000.07016.36
5.4.00.0000.07315.87
5.3.290.0070.08014.80
5.3.280.0030.07014.68
5.3.270.0030.06314.66
5.3.260.0030.05714.60
5.3.250.0030.07714.54
5.3.240.0070.06014.54
5.3.230.0030.07714.53
5.3.220.0000.07314.63
5.3.210.0030.08314.60
5.3.200.0000.05714.71
5.3.190.0000.07014.52
5.3.180.0070.07714.63
5.3.170.0070.07714.58
5.3.160.0070.08714.49
5.3.150.0070.07714.54
5.3.140.0030.07314.61
5.3.130.0030.04014.62
5.3.120.0000.04014.66
5.3.110.0030.07714.64
5.3.100.0000.06014.02
5.3.90.0070.07014.11
5.3.80.0030.07013.94
5.3.70.0000.07314.07
5.3.60.0030.07714.14
5.3.50.0000.08013.97
5.3.40.0000.06713.97
5.3.30.0030.07713.95
5.3.20.0070.07013.58
5.3.10.0000.07713.54
5.3.00.0000.06313.69
5.2.170.0100.06012.25
5.2.160.0100.04012.25
5.2.150.0030.06012.25
5.2.140.0030.05712.25
5.2.130.0000.04312.25
5.2.120.0000.06712.25
5.2.110.0030.06312.25
5.2.100.0030.05312.25
5.2.90.0130.05312.25
5.2.80.0100.06012.25
5.2.70.0000.07012.25
5.2.60.0030.06012.25
5.2.50.0030.05312.25
5.2.40.0000.06712.25
5.2.30.0030.06012.25
5.2.20.0030.06312.25
5.2.10.0000.04712.25
5.2.00.0030.04012.25
5.1.60.0030.05312.25
5.1.50.0070.03712.25
5.1.40.0070.05012.25
5.1.30.0030.05712.25
5.1.20.0000.05012.25
5.1.10.0000.05712.25
5.1.00.0100.05012.25
5.0.50.0000.02712.25
5.0.40.0030.04712.25
5.0.30.0000.05312.25
5.0.20.0000.04712.25
5.0.10.0000.04712.25
5.0.00.0000.06312.25
4.4.90.0030.03012.25
4.4.80.0000.03712.25
4.4.70.0000.03712.25
4.4.60.0070.03012.25
4.4.50.0000.03712.25
4.4.40.0000.05312.25
4.4.30.0000.02712.25
4.4.20.0100.01712.25
4.4.10.0030.02012.25
4.4.00.0000.02712.25
4.3.110.0000.04012.25
4.3.100.0000.03312.25
4.3.90.0000.03712.25
4.3.80.0030.04312.25
4.3.70.0000.03312.25
4.3.60.0030.02012.25
4.3.50.0000.03312.25
4.3.40.0030.05012.25
4.3.30.0030.03012.25
4.3.20.0030.02712.25
4.3.10.0000.03012.25
4.3.00.0000.03712.25

preferences:
68.14 ms | 400 KiB | 5 Q