3v4l.org

run code in 300+ PHP versions simultaneously
<?php class dupa { public $a = 'j'; public function _construct() { echo '+_construct'.$this->$a; } public function dupa(){} /*public function dupa($param) { $this->a = $param; }*/ }; $a = new dupa('blabla'); echo $a->a; $b = new dupa; echo $b->a;?>

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)
8.3.60.0070.01318.15
8.3.50.0140.00522.00
8.3.40.0080.00818.80
8.3.30.0070.00718.83
8.3.20.0060.00320.09
8.3.10.0070.00021.92
8.3.00.0040.00822.46
8.2.180.0060.01018.16
8.2.170.0090.00922.96
8.2.160.0060.00920.83
8.2.150.0080.00024.18
8.2.140.0030.00524.66
8.2.130.0080.00026.16
8.2.120.0110.00019.36
8.2.110.0100.00022.12
8.2.100.0030.00917.70
8.2.90.0040.00419.22
8.2.80.0040.00417.97
8.2.70.0080.00017.63
8.2.60.0090.00017.80
8.2.50.0080.00018.07
8.2.40.0080.00417.66
8.2.30.0080.00018.07
8.2.20.0060.00317.52
8.2.10.0040.00419.42
8.2.00.0070.00317.68
8.1.280.0030.01325.92
8.1.270.0030.00622.14
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0000.00923.94
8.1.230.0110.00019.16
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0040.00417.23
8.1.190.0000.00817.42
8.1.180.0000.00818.10
8.1.170.0060.00318.44
8.1.160.0040.00421.95
8.1.150.0000.00718.70
8.1.140.0000.00717.42
8.1.130.0000.00717.86
8.1.120.0070.00017.39
8.1.110.0000.00917.30
8.1.100.0030.00417.36
8.1.90.0050.00317.31
8.1.80.0040.00417.27
8.1.70.0030.00317.38
8.1.60.0080.00017.55
8.1.50.0000.00717.46
8.1.40.0030.00517.43
8.1.30.0040.00417.48
8.1.20.0000.00917.47
8.1.10.0000.00717.57
8.1.00.0070.00017.39
8.0.300.0030.00318.77
8.0.290.0040.00317.04
8.0.280.0000.00718.35
8.0.270.0070.00017.32
8.0.260.0060.00018.36
8.0.250.0000.00716.96
8.0.240.0080.00017.00
8.0.230.0000.00716.79
8.0.220.0000.00716.80
8.0.210.0030.00316.85
8.0.200.0030.00316.87
8.0.190.0000.00816.87
8.0.180.0080.00016.73
8.0.170.0030.00616.85
8.0.160.0040.00416.79
8.0.150.0040.00416.84
8.0.140.0000.00716.79
8.0.130.0000.00513.26
8.0.120.0080.00016.71
8.0.110.0050.00316.74
8.0.100.0070.00016.88
8.0.90.0040.00416.80
8.0.80.0100.00516.69
8.0.70.0070.00016.94
8.0.60.0050.00316.66
8.0.50.0050.00316.85
8.0.30.0100.01217.00
8.0.20.0130.00917.40
8.0.10.0040.00416.82
8.0.00.0080.01016.66
7.4.330.0000.00615.04
7.4.320.0040.00416.49
7.4.300.0070.00416.54
7.4.290.0030.00616.51
7.4.280.0000.00616.47
7.4.270.0000.00716.61
7.4.260.0070.00016.62
7.4.250.0080.00016.47
7.4.240.0060.00216.46
7.4.230.0050.00316.39
7.4.220.0070.01816.52
7.4.210.0100.00716.55
7.4.200.0000.00716.68
7.4.190.0000.00816.56
7.4.160.0090.00616.52
7.4.150.0060.01317.40
7.4.140.0040.01417.86
7.4.130.0140.00816.45
7.4.120.0090.00816.43
7.4.110.0090.01316.45
7.4.100.0100.00716.61
7.4.90.0090.01016.54
7.4.80.0100.00719.39
7.4.70.0060.01216.45
7.4.60.0120.00316.47
7.4.50.0000.00916.63
7.4.40.0060.01022.77
7.4.30.0130.00316.48
7.4.00.0110.00715.00
7.3.330.0000.00513.32
7.3.320.0000.00513.29
7.3.310.0070.00016.29
7.3.300.0070.00016.21
7.3.290.0040.01416.31
7.3.280.0120.00516.30
7.3.270.0110.00617.40
7.3.260.0130.00716.29
7.3.250.0130.00716.32
7.3.240.0070.01016.25
7.3.230.0030.01316.39
7.3.210.0070.01016.31
7.3.200.0100.00719.39
7.3.190.0090.01216.35
7.3.180.0100.00716.34
7.3.170.0100.00616.43
7.3.160.0120.00316.49
7.3.120.0060.00914.84
7.3.110.0060.01214.66
7.3.100.0030.01314.86
7.3.90.0100.00714.69
7.3.80.0160.00014.82
7.3.70.0030.01014.69
7.3.60.0060.00314.50
7.3.50.0100.00314.34
7.3.40.0110.00414.82
7.3.30.0040.01114.70
7.3.20.0100.00716.52
7.3.10.0090.00616.63
7.3.00.0100.00616.73
7.2.330.0140.00316.57
7.2.320.0170.00616.70
7.2.310.0100.00716.66
7.2.300.0150.00816.43
7.2.290.0080.00816.75
7.2.250.0060.01314.75
7.2.240.0040.01815.19
7.2.230.0070.00314.70
7.2.220.0080.00815.07
7.2.210.0030.01015.18
7.2.200.0070.00715.14
7.2.190.0000.01215.17
7.2.180.0060.00614.68
7.2.170.0040.01114.78
7.2.60.0040.00816.86
7.2.00.0040.00719.63
7.1.330.0110.00415.86
7.1.320.0040.01115.63
7.1.310.0040.01115.80
7.1.300.0000.01615.64
7.1.290.0070.00715.62
7.1.280.0000.00815.77
7.1.270.0100.00615.80
7.1.260.0070.00415.45
7.1.200.0030.01015.65
7.1.100.0040.00917.62
7.1.70.0000.00716.76
7.1.60.0130.00919.82
7.1.50.0040.01816.66
7.1.00.0100.07022.31
7.0.200.0090.00616.69
7.0.140.0000.08022.05
7.0.60.0070.08319.93
7.0.50.0070.03717.86
7.0.40.0100.06320.02
7.0.30.0370.07020.09
7.0.20.0300.06320.19
7.0.10.0330.06320.30
7.0.00.0070.04320.07
5.6.280.0000.07720.87
5.6.210.0100.08320.70
5.6.200.0300.03018.25
5.6.190.0030.05720.61
5.6.180.0070.05020.41
5.6.170.0130.04320.51
5.6.160.0070.07320.54
5.6.150.0070.03718.27
5.6.140.0170.07318.25
5.6.130.0030.08318.22
5.6.120.0030.06321.07
5.6.110.0130.07321.14
5.6.100.0070.08721.00
5.6.90.0030.04720.88
5.6.80.0230.05720.36
5.6.70.0300.03020.48
5.5.350.0100.07720.48
5.5.340.0100.07717.99
5.5.330.0070.06020.45
5.5.320.0230.04720.32
5.5.310.0200.09020.25
5.5.300.0100.07317.95
5.5.290.0070.06317.92
5.5.280.0070.06020.83
5.5.270.0070.07720.87
5.5.260.0170.08020.88
5.5.250.0070.08320.47
5.5.240.0030.06320.27
5.4.450.0370.04319.39
5.4.440.0200.05019.20
5.4.430.0700.03719.57
5.4.420.0270.03319.38
5.4.410.0100.05318.95
5.4.400.0130.04718.79
5.4.390.0030.05718.80
5.4.380.0230.04718.59
5.4.370.0230.04718.78
5.4.360.0330.05018.71
5.4.350.0200.05318.74
5.4.340.0100.06018.78
5.4.320.0060.03912.51
5.4.310.0060.03812.50
5.4.300.0120.04512.51
5.4.290.0070.04712.50
5.4.280.0050.03712.39
5.4.270.0060.03612.36
5.4.260.0060.03812.36
5.4.250.0060.03812.37
5.4.240.0070.03612.37
5.4.230.0030.04012.36
5.4.220.0080.03512.36
5.4.210.0100.03312.36
5.4.200.0090.03512.36
5.4.190.0080.03412.36
5.4.180.0080.03912.36
5.4.170.0090.03612.36
5.4.160.0050.03712.36
5.4.150.0100.04012.35
5.4.140.0100.03312.04
5.4.130.0060.03512.02
5.4.120.0060.03611.99
5.4.110.0080.03511.98
5.4.100.0030.03911.98
5.4.90.0060.03711.98
5.4.80.0080.03411.98
5.4.70.0040.03911.98
5.4.60.0070.03611.98
5.4.50.0050.03611.98
5.4.40.0080.03311.97
5.4.30.0050.03611.96
5.4.20.0040.03611.96
5.4.10.0050.03511.96
5.4.00.0020.04011.45
5.3.290.0060.04412.80
5.3.280.0050.03812.71
5.3.270.0080.03812.73
5.3.260.0070.03812.72
5.3.250.0050.03712.72
5.3.240.0060.03612.72
5.3.230.0050.03812.71
5.3.220.0060.04312.68
5.3.210.0080.05012.68
5.3.200.0080.04912.68
5.3.190.0070.04012.68
5.3.180.0060.03612.67
5.3.170.0080.03512.67
5.3.160.0110.03212.68
5.3.150.0080.05012.68
5.3.140.0140.03812.66
5.3.130.0080.03812.65
5.3.120.0110.03512.66
5.3.110.0040.05212.66
5.3.100.0040.05112.12
5.3.90.0060.04512.09
5.3.80.0070.04812.07
5.3.70.0080.04212.08
5.3.60.0080.04012.06
5.3.50.0050.03812.00
5.3.40.0070.03712.00
5.3.30.0060.03711.95
5.3.20.0070.03411.73
5.3.10.0080.03411.70
5.3.00.0030.04011.68
5.2.170.0070.0309.19
5.2.160.0080.0269.18
5.2.150.0060.0299.19
5.2.140.0030.0399.18
5.2.130.0040.0319.14
5.2.120.0070.0289.14
5.2.110.0020.0329.14
5.2.100.0040.0309.15
5.2.90.0020.0359.14
5.2.80.0060.0299.14
5.2.70.0030.0369.13
5.2.60.0060.0439.09
5.2.50.0050.0389.06
5.2.40.0050.0319.04
5.2.30.0070.0379.01
5.2.20.0090.0359.02
5.2.10.0090.0248.92
5.2.00.0070.0288.77
5.1.60.0040.0248.05
5.1.50.0030.0268.05
5.1.40.0060.0238.04
5.1.30.0060.0318.39
5.1.20.0050.0318.41
5.1.10.0060.0248.14
5.1.00.0040.0268.13
5.0.50.0050.0196.61
5.0.40.0050.0256.47
5.0.30.0020.0336.28
5.0.20.0060.0176.26
5.0.10.0030.0206.23
5.0.00.0020.0326.22
4.4.90.0020.0164.78
4.4.80.0020.0164.76
4.4.70.0020.0164.75
4.4.60.0020.0164.76
4.4.50.0010.0174.77
4.4.40.0020.0264.71
4.4.30.0050.0134.76
4.4.20.0030.0154.84
4.4.10.0080.0244.85
4.4.00.0050.0254.76
4.3.110.0030.0154.66
4.3.100.0020.0164.66
4.3.90.0010.0164.64
4.3.80.0020.0334.59
4.3.70.0040.0204.63
4.3.60.0020.0154.63
4.3.50.0010.0184.63
4.3.40.0000.0314.54
4.3.30.0030.0183.29
4.3.20.0020.0223.26
4.3.10.0000.0223.23
4.3.00.0030.01715.02

preferences:
39.31 ms | 401 KiB | 5 Q