3v4l.org

run code in 300+ PHP versions simultaneously
<?php class y { public $ppp = 123; } class x { public function __construct() { $x =& $this; $x = new y; var_dump(get_class($this)); var_dump($this->ppp); } } new x;

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)
8.3.60.0120.00316.88
8.3.50.0180.00722.94
8.3.40.0070.00718.79
8.3.30.0030.01019.09
8.3.20.0090.00020.21
8.3.10.0000.00721.82
8.3.00.0080.00017.49
8.2.180.0090.00918.17
8.2.170.0140.00022.96
8.2.160.0130.00720.45
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0000.00820.96
8.2.110.0040.01422.11
8.2.100.0120.00019.64
8.2.90.0050.00319.05
8.2.80.0000.00817.97
8.2.70.0030.00517.25
8.2.60.0060.00317.90
8.2.50.0040.00418.07
8.2.40.0000.00817.97
8.2.30.0040.00417.88
8.2.20.0000.00817.69
8.2.10.0040.00418.09
8.2.00.0040.00417.60
8.1.280.0040.01125.92
8.1.270.0080.00023.88
8.1.260.0030.00626.35
8.1.250.0080.00028.09
8.1.240.0060.00323.84
8.1.230.0080.00319.15
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0030.00717.23
8.1.190.0040.00417.13
8.1.180.0070.00018.10
8.1.170.0030.00518.51
8.1.160.0030.00521.89
8.1.150.0000.00718.68
8.1.140.0000.00817.34
8.1.130.0000.00717.80
8.1.120.0030.00317.43
8.1.110.0080.00017.43
8.1.100.0040.00417.29
8.1.90.0040.00417.41
8.1.80.0000.00717.40
8.1.70.0030.00317.28
8.1.60.0040.00417.59
8.1.50.0000.00817.57
8.1.40.0030.00617.48
8.1.30.0000.00817.63
8.1.20.0030.00517.53
8.1.10.0040.00417.60
8.1.00.0000.00817.50
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0030.00318.43
8.0.270.0000.00717.10
8.0.260.0030.00317.19
8.0.250.0040.00416.93
8.0.240.0030.00316.99
8.0.230.0030.00616.79
8.0.220.0000.00616.87
8.0.210.0030.00316.77
8.0.200.0060.00316.93
8.0.190.0070.00016.93
8.0.180.0070.00316.96
8.0.170.0050.00216.93
8.0.160.0070.00016.88
8.0.150.0070.00016.82
8.0.140.0090.00016.84
8.0.130.0050.00013.37
8.0.120.0050.00316.89
8.0.110.0040.00416.84
8.0.100.0040.00417.00
8.0.90.0030.00316.79
8.0.80.0090.00616.76
8.0.70.0050.00216.87
8.0.60.0070.00016.68
8.0.50.0030.00516.95
8.0.30.0110.01017.07
8.0.20.0100.00917.40
8.0.10.0070.00016.88
8.0.00.0110.00716.54
7.4.330.0000.00515.01
7.4.320.0070.00016.33
7.4.300.0030.00316.52
7.4.290.0000.00716.48
7.4.280.0030.00416.51
7.4.270.0000.00716.50
7.4.260.0000.01016.34
7.4.250.0060.00316.49
7.4.240.0050.00316.55
7.4.230.0000.00716.67
7.4.220.0140.00316.48
7.4.210.0070.00716.55
7.4.200.0000.00716.57
7.4.160.0130.00316.52
7.4.150.0090.00917.40
7.4.140.0100.00617.86
7.4.130.0070.01016.51
7.4.120.0100.01216.50
7.4.110.0130.00316.43
7.4.100.0090.00916.60
7.4.90.0090.00916.45
7.4.80.0090.01219.39
7.4.70.0060.00916.36
7.4.60.0070.01016.42
7.4.50.0040.00416.40
7.4.40.0120.00416.58
7.4.30.0030.01516.57
7.4.00.0000.01414.74
7.3.330.0030.00313.30
7.3.320.0020.00213.02
7.3.310.0030.00316.30
7.3.300.0030.00316.34
7.3.290.0030.01216.20
7.3.280.0050.01216.31
7.3.270.0140.00617.40
7.3.260.0160.00316.22
7.3.250.0080.00816.38
7.3.240.0140.00316.39
7.3.230.0120.00616.39
7.3.210.0110.00616.25
7.3.200.0150.00419.39
7.3.190.0080.01316.30
7.3.180.0160.00316.20
7.3.170.0070.00716.36
7.3.160.0080.00816.32
7.2.330.0090.00916.61
7.2.320.0100.00616.39
7.2.310.0100.00716.72
7.2.300.0120.00616.38
7.2.290.0160.00616.71
7.2.60.0040.00416.88
7.1.200.0100.00315.64
7.1.70.0000.00817.03
7.1.60.0070.01419.40
7.1.50.0040.01816.89
7.1.00.0000.08022.45
7.0.200.0070.00716.63
7.0.140.0030.07722.04
7.0.60.0070.08019.93
7.0.50.0170.06717.97
7.0.40.0070.07720.02
7.0.30.0430.07320.06
7.0.20.0200.05320.09
7.0.10.0030.05020.23
7.0.00.0130.08320.05
5.6.280.0070.07021.13
5.6.210.0000.04320.63
5.6.200.0070.04018.23
5.6.190.0170.07320.67
5.6.180.0200.03720.46
5.6.170.0430.07020.50
5.6.160.0030.04320.45
5.6.150.0170.06718.12
5.6.140.0100.04718.14
5.6.130.0130.08318.15
5.6.120.0170.07321.02
5.6.110.0030.09021.11
5.6.100.0070.05720.98
5.6.90.0000.04321.13
5.6.80.0170.08320.36
5.5.350.0200.04320.47
5.5.340.0070.08317.98
5.5.330.0100.06720.30
5.5.320.0300.05020.20
5.5.310.0300.05020.28
5.5.300.0030.03718.07
5.5.290.0030.05717.91
5.5.280.0100.08020.88
5.5.270.0130.07720.75
5.5.260.0130.09020.96
5.5.250.0070.06320.69
5.5.240.0030.04720.19
5.4.450.0470.06319.47
5.4.440.0670.04319.39
5.4.430.0730.05019.22
5.4.420.0100.06019.67
5.4.410.0730.05019.35
5.4.400.0170.06718.75
5.4.390.0200.05718.70
5.4.380.0200.05018.63
5.4.370.0100.04018.68
5.4.360.0100.04018.73
5.4.350.0090.04512.02
5.4.340.0080.03612.02
5.4.320.0050.04112.50
5.4.310.0070.03712.49
5.4.300.0080.03412.50
5.4.290.0040.03912.50
5.4.280.0050.03612.39
5.4.270.0050.04112.39
5.4.260.0030.04112.40
5.4.250.0100.04412.39
5.4.240.0120.03712.40
5.4.230.0080.03612.39
5.4.220.0080.03512.39
5.4.210.0060.03812.39
5.4.200.0010.04612.39
5.4.190.0070.04012.38
5.4.180.0050.04212.38
5.4.170.0060.03612.39
5.4.160.0090.03712.39
5.4.150.0070.03512.39
5.4.140.0040.03912.07
5.4.130.0070.03612.06
5.4.120.0050.03512.02
5.4.110.0100.04112.01
5.4.100.0050.03612.01
5.4.90.0090.03812.01
5.4.80.0050.03812.01
5.4.70.0080.03112.01
5.4.60.0080.03212.00
5.4.50.0100.03412.01
5.4.40.0070.03512.00
5.4.30.0060.03911.99
5.4.20.0070.04112.00
5.4.10.0070.03511.99
5.4.00.0050.03911.48
5.3.290.0100.04112.80
5.3.280.0080.03712.71
5.3.270.0060.04012.73
5.3.260.0060.04012.72
5.3.250.0100.03212.72
5.3.240.0120.04612.72
5.3.230.0050.04112.71
5.3.220.0090.03612.68
5.3.210.0080.04312.68
5.3.200.0050.03912.68
5.3.190.0100.03412.68
5.3.180.0060.04812.67
5.3.170.0080.03712.67
5.3.160.0070.03612.68
5.3.150.0050.04112.67
5.3.140.0120.03012.66
5.3.130.0060.03812.66
5.3.120.0070.03712.66
5.3.110.0070.04312.66
5.3.100.0040.04412.12
5.3.90.0090.03512.10
5.3.80.0070.03612.09
5.3.70.0040.03912.09
5.3.60.0070.03912.08
5.3.50.0090.03512.02
5.3.40.0070.03412.02
5.3.30.0040.03611.98
5.3.20.0030.03911.75
5.3.10.0020.03811.73
5.3.00.0020.03911.71
5.2.170.0090.0259.22
5.2.160.0050.0279.21
5.2.150.0050.0299.22
5.2.140.0080.0369.21
5.2.130.0040.0329.18
5.2.120.0050.0299.17
5.2.110.0060.0329.18
5.2.100.0050.0299.18
5.2.90.0090.0279.18
5.2.80.0050.0329.17
5.2.70.0040.0389.17
5.2.60.0060.0309.13
5.2.50.0060.0329.10
5.2.40.0030.0319.07
5.2.30.0030.0329.05
5.2.20.0050.0299.04
5.2.10.0060.0268.94
5.2.00.0090.0328.80
5.1.60.0040.0288.09
5.1.50.0020.0308.08
5.1.40.0070.0258.06
5.1.30.0030.0278.42
5.1.20.0070.0248.43
5.1.10.0060.0238.16
5.1.00.0050.0278.16
5.0.50.0070.0266.63
5.0.40.0050.0346.50
5.0.30.0020.0326.31
5.0.20.0050.0196.28
5.0.10.0020.0236.26
5.0.00.0030.0306.25
4.4.90.0030.0154.78
4.4.80.0040.0144.75
4.4.70.0030.0154.75
4.4.60.0010.0164.76
4.4.50.0010.0164.77
4.4.40.0020.0254.71
4.4.30.0010.0174.76
4.4.20.0040.0204.84
4.4.10.0010.0264.84
4.4.00.0050.0224.76
4.3.110.0030.0194.66
4.3.100.0020.0154.67
4.3.90.0040.0124.63
4.3.80.0040.0234.59
4.3.70.0040.0204.63
4.3.60.0010.0214.63
4.3.50.0020.0214.63
4.3.40.0030.0234.54
4.3.30.0030.0143.30
4.3.20.0020.0163.28
4.3.10.0020.0153.24
4.3.00.0130.0277.10

preferences:
58.93 ms | 401 KiB | 5 Q