3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a { public $b; public function __construct() { $this->a = new__CLASS__; } } var_dump(new 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)
8.3.70.0120.00616.88
8.3.60.0060.00816.63
8.3.50.0080.01321.89
8.3.40.0100.00718.67
8.3.30.0110.00318.95
8.3.20.0000.01520.21
8.3.10.0060.00320.65
8.3.00.0040.00417.71
8.2.190.0140.00016.63
8.2.180.0120.00418.13
8.2.170.0140.00722.96
8.2.160.0100.00320.38
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0050.00319.78
8.2.110.0000.01019.49
8.2.100.0090.00317.84
8.2.90.0080.00019.70
8.2.80.0060.00317.75
8.2.70.0000.00817.75
8.2.60.0050.00318.03
8.2.50.0080.00019.36
8.2.40.0030.00519.94
8.2.30.0000.00718.10
8.2.20.0080.00017.73
8.2.10.0000.00718.06
8.2.00.0000.00817.72
8.1.280.0070.00725.92
8.1.270.0060.00320.73
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00322.51
8.1.230.0120.00021.03
8.1.220.0040.00417.74
8.1.210.0000.00818.91
8.1.200.0060.00317.36
8.1.190.0030.00517.22
8.1.180.0040.00423.76
8.1.170.0040.00418.71
8.1.160.0040.00418.82
8.1.150.0000.00718.86
8.1.140.0030.00517.44
8.1.130.0000.00717.71
8.1.120.0040.00417.39
8.1.110.0040.00317.38
8.1.100.0040.00317.30
8.1.90.0050.00317.27
8.1.80.0000.00717.41
8.1.70.0030.00317.26
8.1.60.0030.00517.53
8.1.50.0040.00417.52
8.1.40.0040.00417.36
8.1.30.0030.00617.63
8.1.20.0000.00717.46
8.1.10.0040.00417.43
8.1.00.0040.00417.43
8.0.300.0070.00020.03
8.0.290.0000.00716.75
8.0.280.0040.00418.45
8.0.270.0000.00717.20
8.0.260.0030.00317.16
8.0.250.0030.00317.01
8.0.240.0000.00816.98
8.0.230.0000.00717.05
8.0.220.0040.00416.93
8.0.210.0000.00716.96
8.0.200.0030.00316.93
8.0.190.0050.00216.90
8.0.180.0070.00016.81
8.0.170.0050.00216.84
8.0.160.0000.00716.91
8.0.150.0000.00717.02
8.0.140.0030.00316.97
8.0.130.0030.00313.35
8.0.120.0050.00316.85
8.0.110.0070.00016.89
8.0.100.0050.00216.76
8.0.90.0030.00316.95
8.0.80.0070.00716.98
8.0.70.0000.00716.91
8.0.60.0040.00417.01
8.0.50.0040.00416.93
8.0.30.0110.00817.10
8.0.20.0130.00617.40
8.0.10.0030.00617.01
8.0.00.0120.00616.69
7.4.330.0000.00515.02
7.4.320.0070.00016.52
7.4.300.0030.00316.58
7.4.290.0000.00716.53
7.4.280.0080.00016.47
7.4.270.0030.00316.52
7.4.260.0070.00016.36
7.4.250.0000.00716.38
7.4.240.0060.00216.39
7.4.230.0070.00016.64
7.4.220.0070.01716.43
7.4.210.0070.00716.54
7.4.200.0020.00516.27
7.4.160.0130.00316.47
7.4.150.0080.01217.40
7.4.140.0080.01017.86
7.4.130.0090.00816.62
7.4.120.0090.00916.37
7.4.110.0120.01216.46
7.4.100.0070.01016.55
7.4.90.0140.00316.59
7.4.80.0100.00916.62
7.4.70.0150.00316.49
7.4.60.0140.00916.51
7.4.50.0050.00616.46
7.4.40.0090.00616.56
7.4.30.0120.00916.59
7.4.00.0030.01214.81
7.3.330.0000.00613.28
7.3.320.0050.00013.34
7.3.310.0000.00716.16
7.3.300.0000.00616.22
7.3.290.0070.00716.33
7.3.280.0110.00916.33
7.3.270.0090.00817.40
7.3.260.0070.01016.29
7.3.250.0110.01116.46
7.3.240.0110.00716.46
7.3.230.0070.01016.56
7.3.210.0040.01916.36
7.3.200.0110.01119.39
7.3.190.0160.00716.49
7.3.180.0080.01216.59
7.3.170.0090.00916.57
7.3.160.0070.01016.37
7.2.330.0140.00316.55
7.2.320.0100.00716.33
7.2.310.0100.01016.57
7.2.300.0070.01016.62
7.2.290.0080.00816.27
7.2.60.0030.00916.79
7.2.00.0030.01319.41
7.1.200.0070.00415.70
7.1.100.0030.00617.76
7.1.70.0000.01516.97
7.1.60.0030.01719.34
7.1.50.0120.00916.89
7.1.00.0000.08022.47
7.0.200.0150.00416.75
7.0.140.0030.07322.18
7.0.60.0030.06719.82
7.0.50.0070.05317.88
7.0.40.0030.04320.23
7.0.30.0370.07020.09
7.0.20.0330.04720.10
7.0.10.0100.08720.30
7.0.00.0030.08320.16
5.6.280.0100.06721.15
5.6.210.0100.07320.54
5.6.200.0100.06018.23
5.6.190.0070.08320.46
5.6.180.0070.06720.57
5.6.170.0300.08320.52
5.6.160.0030.09020.46
5.6.150.0030.05318.18
5.6.140.0130.03018.18
5.6.130.0070.04318.17
5.6.120.0030.09021.02
5.6.110.0170.06021.04
5.6.100.0130.08021.12
5.6.90.0170.07720.95
5.6.80.0100.03320.36
5.5.350.0230.08320.34
5.5.340.0070.08017.98
5.5.330.0070.03720.13
5.5.320.0300.05320.27
5.5.310.0230.05720.21
5.5.300.0030.09018.07
5.5.290.0130.03017.95
5.5.280.0100.05320.80
5.5.270.0070.08720.86
5.5.260.0170.07020.80
5.5.250.0130.07320.57
5.5.240.0370.06720.36
5.4.450.0100.05719.21
5.4.440.1000.06719.48
5.4.430.0700.06719.61
5.4.420.0100.05319.51
5.4.410.0070.05719.42
5.4.400.1030.05318.89
5.4.390.0700.06018.61
5.4.380.1300.05718.75
5.4.370.0430.07018.63
5.4.360.0330.05018.47
5.4.350.0060.03712.02
5.4.340.0080.04212.02
5.4.320.0070.04812.50
5.4.310.0090.04112.50
5.4.300.0110.03812.50
5.4.290.0080.03812.50
5.4.280.0060.03612.39
5.4.270.0060.03812.40
5.4.260.0090.04112.39
5.4.250.0100.03812.39
5.4.240.0100.03812.39
5.4.230.0130.05612.39
5.4.220.0080.03912.39
5.4.210.0070.03712.39
5.4.200.0120.03612.39
5.4.190.0090.04212.38
5.4.180.0110.04212.38
5.4.170.0140.05612.39
5.4.160.0040.03812.39
5.4.150.0100.03712.38
5.4.140.0080.03912.07
5.4.130.0100.03112.05
5.4.120.0090.03612.02
5.4.110.0060.03612.02
5.4.100.0060.03512.02
5.4.90.0110.03912.01
5.4.80.0120.04212.01
5.4.70.0050.03812.01
5.4.60.0080.03712.01
5.4.50.0080.03412.00
5.4.40.0080.03212.00
5.4.30.0050.03712.00
5.4.20.0060.03911.99
5.4.10.0070.04211.99
5.4.00.0030.04411.48
5.3.290.0090.03812.80
5.3.280.0090.04012.71
5.3.270.0060.04212.72
5.3.260.0090.04712.71
5.3.250.0100.04012.72
5.3.240.0140.03312.72
5.3.230.0110.03512.71
5.3.220.0120.06212.68
5.3.210.0120.05112.68
5.3.200.0140.04712.68
5.3.190.0090.04312.67
5.3.180.0070.04312.67
5.3.170.0060.05812.66
5.3.160.0060.03812.68
5.3.150.0110.03612.68
5.3.140.0090.03512.66
5.3.130.0050.04012.66
5.3.120.0070.05312.66
5.3.110.0070.05612.66
5.3.100.0100.03712.12
5.3.90.0090.03512.10
5.3.80.0070.03912.09
5.3.70.0080.03712.09
5.3.60.0050.04312.07
5.3.50.0030.03912.02
5.3.40.0050.04212.02
5.3.30.0060.03711.97
5.3.20.0060.04111.76
5.3.10.0040.03811.73
5.3.00.0060.03811.71
5.2.170.0040.0349.22
5.2.160.0040.0339.22
5.2.150.0070.0329.22
5.2.140.0060.0329.22
5.2.130.0070.0319.18
5.2.120.0110.0299.18
5.2.110.0050.0309.18
5.2.100.0060.0339.17
5.2.90.0040.0309.17
5.2.80.0040.0339.17
5.2.70.0030.0349.17
5.2.60.0200.0869.13
5.2.50.0120.0369.09
5.2.40.0100.0419.07
5.2.30.0050.0339.04
5.2.20.0080.0269.03
5.2.10.0060.0318.94
5.2.00.0060.0288.80
5.1.60.0060.0268.08
5.1.50.0060.0258.08
5.1.40.0070.0338.06
5.1.30.0060.0338.41
5.1.20.0020.0328.44
5.1.10.0040.0288.16
5.1.00.0040.0358.16
5.0.50.0020.0226.63
5.0.40.0040.0196.49
5.0.30.0030.0346.31
5.0.20.0070.0176.27
5.0.10.0030.0216.25
5.0.00.0070.0326.25
4.4.90.0080.0204.78
4.4.80.0020.0164.76
4.4.70.0040.0154.75
4.4.60.0050.0174.76
4.4.50.0030.0164.77
4.4.40.0040.0264.70
4.4.30.0020.0174.75
4.4.20.0020.0214.85
4.4.10.0020.0184.85
4.4.00.0070.0234.76
4.3.110.0050.0174.67
4.3.100.0040.0144.66
4.3.90.0040.0144.63
4.3.80.0050.0244.58
4.3.70.0020.0184.63
4.3.60.0030.0164.63
4.3.50.0060.0224.63
4.3.40.0060.0314.54
4.3.30.0050.0323.30
4.3.20.0060.0243.28
4.3.10.0090.0303.23
4.3.00.0170.0237.27

preferences:
72.03 ms | 401 KiB | 5 Q