3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { function foo() { if (isset($this)) { echo '$this is defined ('; echo get_class($this); echo ")\n"; } else { echo "\$this is not defined.\n"; } } } class B { function bar() { A::foo(); } } $a = new A(); $a->foo(); A::foo(); $b = new B(); $b->bar(); B::bar();

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)
8.3.60.0070.00718.43
8.3.50.0070.00922.05
8.3.40.0070.00718.63
8.3.30.0100.00319.27
8.3.20.0110.00420.05
8.3.10.0080.00023.65
8.3.00.0040.00419.56
8.2.180.0100.01016.46
8.2.170.0040.01122.96
8.2.160.0130.00720.36
8.2.150.0050.00324.18
8.2.140.0030.00524.66
8.2.130.0060.00326.16
8.2.120.0150.00421.04
8.2.110.0060.00320.48
8.2.100.0110.00017.91
8.2.90.0050.00519.19
8.2.80.0040.00417.97
8.2.70.0060.00317.50
8.2.60.0030.00517.80
8.2.50.0080.00018.07
8.2.40.0050.00319.46
8.2.30.0040.00418.14
8.2.20.0040.00417.70
8.2.10.0040.00417.87
8.2.00.0060.00317.62
8.1.280.0120.00625.92
8.1.270.0000.00923.83
8.1.260.0070.00026.35
8.1.250.0080.00028.09
8.1.240.0070.00423.84
8.1.230.0080.00320.83
8.1.220.0060.00317.74
8.1.210.0080.00018.77
8.1.200.0090.00017.38
8.1.190.0000.00917.23
8.1.180.0050.00318.10
8.1.170.0060.00618.52
8.1.160.0050.00321.88
8.1.150.0040.00418.58
8.1.140.0000.00817.32
8.1.130.0030.00317.84
8.1.120.0030.00417.43
8.1.110.0040.00417.31
8.1.100.0000.00917.36
8.1.90.0040.00417.34
8.1.80.0000.00717.41
8.1.70.0070.00017.32
8.1.60.0030.00617.67
8.1.50.0040.00417.47
8.1.40.0060.00317.59
8.1.30.0030.00517.68
8.1.20.0000.00817.58
8.1.10.0030.00517.57
8.1.00.0050.00317.55
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0000.00718.46
8.0.270.0030.00317.21
8.0.260.0040.00417.28
8.0.250.0030.00316.95
8.0.240.0070.00017.06
8.0.230.0030.00316.96
8.0.220.0080.00016.89
8.0.210.0070.00016.80
8.0.200.0000.00716.85
8.0.190.0040.00416.84
8.0.180.0040.00416.82
8.0.170.0080.00016.97
8.0.160.0070.00016.98
8.0.150.0050.00316.76
8.0.140.0070.00016.80
8.0.130.0050.00013.27
8.0.120.0070.00016.87
8.0.110.0000.00716.90
8.0.100.0000.00716.94
8.0.90.0070.00016.89
8.0.80.0100.00716.96
8.0.70.0030.00616.95
8.0.60.0000.00716.89
8.0.50.0000.00716.91
8.0.30.0170.00817.18
8.0.20.0110.00717.40
8.0.10.0040.00417.01
8.0.00.0080.00916.71
7.4.330.0050.00015.08
7.4.320.0030.00316.43
7.4.300.0030.00316.43
7.4.290.0030.00316.50
7.4.280.0030.00316.52
7.4.270.0070.00016.48
7.4.260.0030.00316.56
7.4.250.0030.00516.57
7.4.240.0020.00516.53
7.4.230.0000.00716.71
7.4.220.0060.01316.55
7.4.210.0000.01616.54
7.4.200.0000.00716.46
7.4.160.0160.00316.30
7.4.150.0130.01017.40
7.4.140.0090.00917.86
7.4.130.0070.01216.41
7.4.120.0130.00516.51
7.4.110.0140.00316.47
7.4.100.0030.01916.31
7.4.90.0080.01116.55
7.4.80.0140.00719.39
7.4.70.0160.00016.55
7.4.60.0070.01016.52
7.4.50.0040.00416.64
7.4.40.0080.00816.50
7.4.30.0090.00616.54
7.4.00.0030.01114.92
7.3.330.0070.00013.29
7.3.320.0000.00513.15
7.3.310.0030.00316.34
7.3.300.0030.00316.18
7.3.290.0040.01116.23
7.3.280.0090.00916.29
7.3.270.0000.01717.40
7.3.260.0160.00716.32
7.3.250.0060.01116.54
7.3.240.0070.01116.53
7.3.230.0030.01316.39
7.3.210.0030.01316.43
7.3.200.0090.01019.39
7.3.190.0160.00616.48
7.3.180.0090.00616.29
7.3.170.0040.01416.35
7.3.160.0130.00316.29
7.3.120.0070.01014.85
7.3.10.0040.00816.45
7.3.00.0070.00716.54
7.2.330.0080.00816.46
7.2.320.0100.00716.31
7.2.310.0130.00316.66
7.2.300.0060.00916.79
7.2.290.0140.00316.73
7.2.130.0100.00316.93
7.2.120.0070.00316.83
7.2.110.0080.00017.04
7.2.100.0030.00916.87
7.2.90.0100.00316.96
7.2.80.0030.00916.77
7.2.70.0000.01316.66
7.2.60.0120.00416.96
7.2.50.0070.01016.68
7.2.40.0100.00716.95
7.2.30.0070.00716.89
7.2.20.0040.01116.65
7.2.10.0030.01016.97
7.2.00.0070.00716.69
7.1.250.0030.00915.71
7.1.200.0000.01615.46
7.1.100.0180.00317.91
7.1.70.0000.00716.85
7.1.60.0130.01019.70
7.1.50.0100.01416.93
7.1.00.0030.07722.37
7.0.200.0000.01416.69
7.0.140.0030.07321.99
7.0.60.0070.08020.02
7.0.50.0030.05017.85
7.0.40.0070.08320.25
7.0.30.0530.07020.08
7.0.20.0170.04320.24
7.0.10.0330.08020.21
7.0.00.0170.07720.07
5.6.280.0000.07720.82
5.6.210.0130.08020.50
5.6.200.0000.04318.20
5.6.190.0070.08720.50
5.6.180.0270.04320.65
5.6.170.0300.03720.58
5.6.160.0170.04720.44
5.6.150.0100.03318.18
5.6.140.0030.03718.12
5.6.130.0100.06318.28
5.6.120.0230.04321.12
5.6.110.0100.03321.00
5.6.100.0070.05721.14
5.6.90.0170.04321.13
5.6.80.0000.05720.38
5.6.70.0300.07020.53
5.5.350.0170.08320.38
5.5.340.0070.05017.99
5.5.330.0200.06720.34
5.5.320.0100.04320.21
5.5.310.0430.06720.27
5.5.300.0000.05318.00
5.5.290.0000.04318.09
5.5.280.0100.08020.85
5.5.270.0130.04320.89
5.5.260.0230.07020.80
5.5.250.0000.04720.72
5.5.240.0070.06720.12
5.4.450.0830.05719.50
5.4.440.0830.06319.47
5.4.430.0770.05319.47
5.4.420.0670.00019.52
5.4.410.0170.04719.08
5.4.400.0200.05318.85
5.4.390.0170.05718.48
5.4.380.0270.06018.63
5.4.370.0200.05718.41
5.4.360.0200.05018.55
5.4.350.0090.04012.02
5.4.340.0120.03612.02
5.4.320.0050.04112.50
5.4.310.0090.03812.50
5.4.300.0050.03612.50
5.4.290.0090.03512.50
5.4.280.0040.03612.40
5.4.270.0030.03812.40
5.4.260.0050.03812.39
5.4.250.0070.03612.40
5.4.240.0070.03512.39
5.4.230.0070.03712.39
5.4.220.0030.03912.39
5.4.210.0030.03812.39
5.4.200.0040.04012.39
5.4.190.0040.03912.39
5.4.180.0050.03812.39
5.4.170.0000.04312.40
5.4.160.0070.03512.39
5.4.150.0060.03512.39
5.4.140.0050.03812.07
5.4.130.0050.03612.07
5.4.120.0040.03712.02
5.4.110.0050.03512.02
5.4.100.0060.03412.02
5.4.90.0080.03412.02
5.4.80.0060.03612.02
5.4.70.0080.03312.01
5.4.60.0080.03212.01
5.4.50.0070.03512.00
5.4.40.0020.03812.00
5.4.30.0070.03912.00
5.4.20.0030.04212.00
5.4.10.0060.03712.00
5.4.00.0050.04211.49
5.3.290.0050.04112.80
5.3.280.0030.04012.71
5.3.270.0060.03912.72
5.3.260.0090.03512.72
5.3.250.0050.03712.72
5.3.240.0040.04212.72
5.3.230.0120.04012.71
5.3.220.0070.03512.68
5.3.210.0060.03812.68
5.3.200.0060.03612.68
5.3.190.0040.04012.68
5.3.180.0050.03712.67
5.3.170.0090.04212.67
5.3.160.0070.03712.68
5.3.150.0050.03912.68
5.3.140.0060.03612.66
5.3.130.0080.03712.66
5.3.120.0060.03912.66
5.3.110.0070.03812.66
5.3.100.0080.03812.13
5.3.90.0060.03512.11
5.3.80.0030.03912.09
5.3.70.0050.03812.10
5.3.60.0050.03612.08
5.3.50.0020.03912.03
5.3.40.0050.03712.03
5.3.30.0050.03611.98
5.3.20.0080.03311.77
5.3.10.0020.03711.73
5.3.00.0070.03411.72
5.2.170.0040.0319.22
5.2.160.0040.0319.23
5.2.150.0040.0319.22
5.2.140.0070.0289.22
5.2.130.0050.0289.18
5.2.120.0040.0299.18
5.2.110.0060.0289.19
5.2.100.0050.0289.18
5.2.90.0060.0289.18
5.2.80.0050.0299.18
5.2.70.0060.0289.17
5.2.60.0050.0309.13
5.2.50.0030.0329.09
5.2.40.0060.0279.07
5.2.30.0080.0269.05
5.2.20.0060.0279.04
5.2.10.0020.0318.95
5.2.00.0040.0308.81
5.1.60.0070.0228.09
5.1.50.0050.0278.09
5.1.40.0070.0318.07
5.1.30.0030.0278.42
5.1.20.0050.0258.44
5.1.10.0050.0298.17
5.1.00.0070.0228.17
5.0.50.0070.0236.64
5.0.40.0030.0226.50
5.0.30.0040.0346.32
5.0.20.0040.0236.29
5.0.10.0040.0196.26
5.0.00.0040.0306.25
4.4.90.0040.0144.77
4.4.80.0020.0154.76
4.4.70.0040.0214.75
4.4.60.0030.0174.76
4.4.50.0050.0134.77
4.4.40.0010.0274.71
4.4.30.0050.0134.76
4.4.20.0040.0144.84
4.4.10.0040.0144.85
4.4.00.0030.0244.76
4.3.110.0030.0154.67
4.3.100.0060.0114.66
4.3.90.0030.0144.63
4.3.80.0040.0234.59
4.3.70.0040.0134.63
4.3.60.0030.0154.63
4.3.50.0020.0164.63
4.3.40.0020.0244.54
4.3.30.0030.0153.30
4.3.20.0030.0153.29
4.3.10.0030.0153.24
4.3.00.0100.0237.75

preferences:
44.62 ms | 401 KiB | 5 Q