3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $avar; public function __isset($varname) { return true; } } class B extends A { public function hasAVar(){ return property_exists($this, 'avar'); } public function hasBVar(){ return property_exists($this, 'bvar'); } } $b = new B(); var_dump($b->hasAVar()); var_dump($b->hasBVar());

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)
8.3.60.0000.01418.43
8.3.50.0130.00722.83
8.3.40.0070.00718.59
8.3.30.0070.00718.92
8.3.20.0040.00420.34
8.3.10.0040.00423.70
8.3.00.0080.00019.25
8.2.180.0000.01618.66
8.2.170.0150.00322.96
8.2.160.0070.00720.47
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00021.15
8.2.110.0060.00322.03
8.2.100.0080.00418.09
8.2.90.0000.00819.22
8.2.80.0050.00317.97
8.2.70.0030.00517.50
8.2.60.0040.00417.91
8.2.50.0040.00418.07
8.2.40.0050.00319.82
8.2.30.0090.00017.87
8.2.20.0040.00417.51
8.2.10.0070.00017.98
8.2.00.0040.00417.46
8.1.280.0130.00725.92
8.1.270.0030.00523.84
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.79
8.1.230.0110.00018.88
8.1.220.0080.00017.74
8.1.210.0030.00518.77
8.1.200.0110.00017.35
8.1.190.0040.00416.88
8.1.180.0040.00418.10
8.1.170.0050.00318.51
8.1.160.0040.00422.01
8.1.150.0000.00818.84
8.1.140.0040.00417.44
8.1.130.0070.00017.29
8.1.120.0040.00417.30
8.1.110.0000.00817.44
8.1.100.0000.00817.39
8.1.90.0030.00617.38
8.1.80.0040.00417.38
8.1.70.0070.00017.27
8.1.60.0050.00317.55
8.1.50.0030.00617.46
8.1.40.0050.00317.41
8.1.30.0050.00317.71
8.1.20.0040.00417.52
8.1.10.0040.00417.48
8.1.00.0040.00417.31
8.0.300.0040.00418.77
8.0.290.0080.00016.59
8.0.280.0070.00018.34
8.0.270.0030.00317.12
8.0.260.0000.00716.75
8.0.250.0030.00316.95
8.0.240.0040.00416.78
8.0.230.0070.00016.86
8.0.220.0000.00616.77
8.0.210.0040.00716.72
8.0.200.0000.00716.89
8.0.190.0000.00816.88
8.0.180.0030.00616.74
8.0.170.0070.00016.80
8.0.160.0040.00416.93
8.0.150.0000.00716.76
8.0.140.0030.00716.66
8.0.130.0030.00313.22
8.0.120.0030.00616.84
8.0.110.0000.00716.66
8.0.100.0030.00416.78
8.0.90.0070.00016.78
8.0.80.0100.01016.86
8.0.70.0000.00816.89
8.0.60.0040.00416.84
8.0.50.0000.00716.76
8.0.30.0110.00917.04
8.0.20.0100.01217.40
8.0.10.0050.00216.84
8.0.00.0110.00716.56
7.4.330.0030.00315.01
7.4.320.0030.00316.39
7.4.300.0030.00316.57
7.4.290.0000.00716.61
7.4.280.0040.00716.50
7.4.270.0030.00316.45
7.4.260.0030.00616.43
7.4.250.0070.00016.61
7.4.240.0030.00316.48
7.4.230.0080.00016.39
7.4.220.0040.01416.52
7.4.210.0100.00316.70
7.4.200.0070.00016.60
7.4.160.0100.00616.54
7.4.150.0060.01317.40
7.4.140.0100.01017.86
7.4.130.0210.01316.62
7.4.120.0080.00816.42
7.4.110.0030.01516.55
7.4.100.0100.00716.43
7.4.90.0150.00416.47
7.4.80.0120.00819.39
7.4.70.0110.00816.48
7.4.60.0040.01316.45
7.4.50.0050.00316.49
7.4.40.0160.00016.30
7.4.30.0100.01116.54
7.4.00.0090.00615.00
7.3.330.0000.00613.10
7.3.320.0060.00013.11
7.3.310.0000.00716.09
7.3.300.0040.00416.07
7.3.290.0070.01316.32
7.3.280.0050.00916.21
7.3.270.0140.00317.40
7.3.260.0060.01216.59
7.3.250.0160.00516.32
7.3.240.0030.01716.25
7.3.230.0170.00316.39
7.3.210.0160.00016.30
7.3.200.0060.01619.39
7.3.190.0130.01016.18
7.3.180.0070.01016.33
7.3.170.0000.01616.42
7.3.160.0110.00716.52
7.3.10.0060.00916.38
7.3.00.0030.01016.69
7.2.330.0140.00316.29
7.2.320.0070.01016.74
7.2.310.0110.00616.49
7.2.300.0160.00016.29
7.2.290.0060.01116.81
7.2.130.0070.01016.72
7.2.120.0060.00316.82
7.2.110.0080.00816.70
7.2.100.0090.00616.82
7.2.90.0070.00416.88
7.2.80.0030.00616.81
7.2.70.0110.00317.00
7.2.60.0100.00716.72
7.2.50.0040.01116.60
7.2.40.0060.00316.83
7.2.30.0030.01216.64
7.2.20.0120.00916.77
7.2.10.0070.01316.57
7.2.00.0100.00816.81
7.1.250.0070.00715.77
7.1.200.0060.00615.57
7.1.70.0070.00717.16
7.1.60.0140.01119.40
7.1.50.0070.01016.96
7.1.00.0070.07322.36
7.0.200.0790.00014.27
7.0.140.0070.07022.04
7.0.60.0030.04320.03
7.0.50.0070.07717.80
7.0.40.0100.08020.09
7.0.30.0230.04320.24
7.0.20.0230.08020.23
7.0.10.0000.07720.07
7.0.00.0030.04720.24
5.6.280.0070.07021.08
5.6.210.0070.07720.48
5.6.200.0100.05318.22
5.6.190.0000.04320.77
5.6.180.0300.08320.66
5.6.170.0200.04720.48
5.6.160.0030.05720.47
5.6.150.0070.07018.27
5.6.140.0030.05718.21
5.6.130.0070.06718.28
5.6.120.0070.04321.00
5.6.110.0070.03721.12
5.6.100.0200.05321.02
5.6.90.0070.08021.00
5.6.80.0070.08020.54
5.5.350.0100.08020.34
5.5.340.0030.08317.95
5.5.330.0070.03720.31
5.5.320.0470.06320.51
5.5.310.0200.05320.30
5.5.300.0030.08017.94
5.5.290.0070.08017.98
5.5.280.0070.05720.69
5.5.270.0270.06320.96
5.5.260.0100.07720.76
5.5.250.0030.06320.66
5.5.240.0200.05720.16
5.4.450.0270.05019.31
5.4.440.0170.03019.17
5.4.430.0370.05719.54
5.4.420.0500.03019.55
5.4.410.0200.04319.44
5.4.400.0300.04319.18
5.4.390.0400.04019.22
5.4.380.0300.06018.74
5.4.370.0500.05318.76
5.4.360.0430.06018.63
5.4.350.0270.05718.79
5.4.340.0300.06018.63
5.4.320.0040.03912.50
5.4.310.0050.03912.50
5.4.300.0030.03912.50
5.4.290.0060.03812.50
5.4.280.0020.03912.40
5.4.270.0040.03812.40
5.4.260.0060.04012.39
5.4.250.0040.04912.40
5.4.240.0090.04112.40
5.4.230.0100.04512.39
5.4.220.0090.03412.39
5.4.210.0070.03312.39
5.4.200.0050.03812.39
5.4.190.0060.04412.39
5.4.180.0080.03512.38
5.4.170.0070.04112.40
5.4.160.0030.04312.39
5.4.150.0080.03412.39
5.4.140.0100.04712.07
5.4.130.0060.04412.06
5.4.120.0080.03212.02
5.4.110.0060.03412.02
5.4.100.0060.03512.02
5.4.90.0070.03512.02
5.4.80.0080.03412.02
5.4.70.0080.03212.01
5.4.60.0040.04512.01
5.4.50.0080.03612.01
5.4.40.0060.03612.00
5.4.30.0110.03012.00
5.4.20.0070.03312.00
5.4.10.0050.03512.00
5.4.00.0060.04011.48
5.3.290.0050.04612.80
5.3.280.0040.04312.71
5.3.270.0080.03812.72
5.3.260.0050.04012.72
5.3.250.0090.04112.72
5.3.240.0050.04312.72
5.3.230.0050.03812.71
5.3.220.0110.03512.68
5.3.210.0080.03712.68
5.3.200.0070.03512.68
5.3.190.0070.03812.68
5.3.180.0080.03412.67
5.3.170.0080.03412.67
5.3.160.0040.03812.68
5.3.150.0080.03412.67
5.3.140.0060.03712.66
5.3.130.0050.03912.66
5.3.120.0070.04212.66
5.3.110.0060.03812.66
5.3.100.0060.03712.12
5.3.90.0070.03412.10
5.3.80.0040.03712.10
5.3.70.0050.04312.09
5.3.60.0060.03612.08
5.3.50.0050.03712.03
5.3.40.0080.04412.03
5.3.30.0070.03311.99
5.3.20.0090.04411.78
5.3.10.0030.03711.73
5.3.00.0030.03911.72
5.2.170.0040.0329.22
5.2.160.0060.0359.22
5.2.150.0040.0339.22
5.2.140.0060.0349.22
5.2.130.0040.0309.18
5.2.120.0040.0289.18
5.2.110.0070.0269.19
5.2.100.0030.0309.18
5.2.90.0070.0269.18
5.2.80.0060.0289.18
5.2.70.0070.0329.18
5.2.60.0080.0319.13
5.2.50.0070.0279.10
5.2.40.0050.0289.07
5.2.30.0050.0299.05
5.2.20.0050.0299.04
5.2.10.0020.0318.95
5.2.00.0020.0328.81
5.1.60.0070.0228.09
5.1.50.0030.0258.09
5.1.40.0060.0228.07
5.1.30.0060.0258.42
5.1.20.0070.0338.45
5.1.10.0050.0258.17
5.1.00.0020.0288.17
5.0.50.0040.0206.65
5.0.40.0070.0156.51
5.0.30.0030.0316.33
5.0.20.0030.0196.29
5.0.10.0030.0206.26
5.0.00.0020.0326.25
4.4.90.0000.0184.78
4.4.80.0030.0154.76
4.4.70.0020.0164.75
4.4.60.0010.0174.76
4.4.50.0030.0154.77
4.4.40.0050.0224.71
4.4.30.0030.0154.76
4.4.20.0010.0174.84
4.4.10.0040.0144.85
4.4.00.0030.0244.76
4.3.110.0020.0164.67
4.3.100.0020.0154.66
4.3.90.0030.0144.64
4.3.80.0030.0254.58
4.3.70.0030.0144.63
4.3.60.0030.0204.63
4.3.50.0030.0164.62
4.3.40.0030.0234.54
4.3.30.0010.0173.30
4.3.20.0030.0153.28
4.3.10.0030.0143.23
4.3.00.0100.02015.62

preferences:
36.33 ms | 401 KiB | 5 Q