3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = new \StdClass; $bar = new \StdClass; $foo->bar = $bar; $bar->foo = $foo; $vars = array('foo' => $foo, 'bar' => $bar); var_dump($vars); var_dump(serialize($vars));

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)
8.3.60.0140.00418.30
8.3.50.0140.00521.94
8.3.40.0140.00018.74
8.3.30.0070.01019.27
8.3.20.0040.00420.21
8.3.10.0040.00422.13
8.3.00.0140.00022.44
8.2.180.0060.00916.63
8.2.170.0110.00422.96
8.2.160.0060.00620.35
8.2.150.0030.00624.18
8.2.140.0060.00324.66
8.2.130.0050.00326.16
8.2.120.0040.00418.85
8.2.110.0100.00021.12
8.2.100.0120.00017.78
8.2.90.0080.00019.21
8.2.80.0040.00417.97
8.2.70.0050.00317.47
8.2.60.0040.00417.93
8.2.50.0060.00318.07
8.2.40.0020.00518.22
8.2.30.0000.00818.13
8.2.20.0040.00417.54
8.2.10.0000.00717.68
8.2.00.0050.00217.55
8.1.280.0120.00625.92
8.1.270.0040.00422.14
8.1.260.0040.00426.35
8.1.250.0070.00728.09
8.1.240.0030.00722.09
8.1.230.0080.00319.00
8.1.220.0030.00517.79
8.1.210.0040.00418.77
8.1.200.0080.00417.23
8.1.190.0040.00417.22
8.1.180.0000.00918.10
8.1.170.0060.00318.41
8.1.160.0070.00021.83
8.1.150.0000.00718.49
8.1.140.0040.00417.38
8.1.130.0030.00317.88
8.1.120.0040.00417.40
8.1.110.0000.00717.44
8.1.100.0040.00417.32
8.1.90.0040.00417.45
8.1.80.0040.00417.29
8.1.70.0000.00717.30
8.1.60.0030.00517.51
8.1.50.0000.00817.42
8.1.40.0000.00817.45
8.1.30.0020.00517.63
8.1.20.0030.00517.61
8.1.10.0040.00417.37
8.1.00.0090.00017.43
8.0.300.0040.00420.09
8.0.290.0080.00016.74
8.0.280.0050.00318.25
8.0.270.0050.00317.12
8.0.260.0000.00616.63
8.0.250.0070.00016.91
8.0.240.0040.00416.77
8.0.230.0080.00016.90
8.0.220.0040.00416.85
8.0.210.0070.00016.84
8.0.200.0000.00616.77
8.0.190.0040.00416.88
8.0.180.0040.00416.85
8.0.170.0000.00716.89
8.0.160.0000.00716.70
8.0.150.0000.00816.81
8.0.140.0040.00416.85
8.0.130.0040.00413.19
8.0.120.0060.00316.83
8.0.110.0030.00516.71
8.0.100.0000.00716.82
8.0.90.0000.00816.63
8.0.80.0070.01116.77
8.0.70.0000.00716.70
8.0.60.0020.00516.89
8.0.50.0050.00316.81
8.0.30.0090.01417.09
8.0.20.0140.00417.40
8.0.10.0040.00416.98
8.0.00.0050.01516.59
7.4.330.0030.00315.01
7.4.320.0000.00716.41
7.4.300.0070.00016.45
7.4.290.0030.00316.44
7.4.280.0030.00316.46
7.4.270.0030.00316.55
7.4.260.0030.00316.46
7.4.250.0040.00416.51
7.4.240.0000.00716.60
7.4.230.0000.00816.40
7.4.220.0070.01016.47
7.4.210.0080.01016.40
7.4.200.0040.00416.64
7.4.190.0040.00416.62
7.4.160.0110.01116.42
7.4.150.0060.01317.40
7.4.140.0050.01617.86
7.4.130.0100.00916.42
7.4.120.0060.01216.47
7.4.110.0110.00516.41
7.4.100.0170.00616.45
7.4.90.0140.01116.50
7.4.80.0160.00619.39
7.4.70.0030.01316.46
7.4.60.0090.01216.32
7.4.50.0000.00616.25
7.4.40.0070.01022.77
7.4.30.0080.00816.65
7.4.00.0160.00014.82
7.3.330.0000.00713.02
7.3.320.0060.00013.11
7.3.310.0000.00716.31
7.3.300.0060.00016.27
7.3.290.0090.00616.32
7.3.280.0120.00716.29
7.3.270.0100.00717.40
7.3.260.0100.01316.42
7.3.250.0110.00616.41
7.3.240.0140.00316.23
7.3.230.0140.00316.41
7.3.210.0070.01016.24
7.3.200.0130.00419.39
7.3.190.0110.00516.43
7.3.180.0160.00016.45
7.3.170.0040.01116.30
7.3.160.0060.00916.63
7.3.120.0050.00514.70
7.2.330.0090.00916.61
7.2.320.0120.01216.68
7.2.310.0150.00616.51
7.2.300.0100.01016.50
7.2.290.0140.00716.43
7.2.60.0030.01016.45
7.2.00.0030.00719.52
7.1.200.0070.00715.67
7.1.100.0060.00618.13
7.1.70.0000.00717.02
7.1.60.0140.00019.82
7.1.50.0120.01217.02
7.1.00.0070.07322.45
7.0.200.0020.00516.43
7.0.140.0100.06722.10
7.0.100.0170.08719.96
7.0.90.0130.07019.97
7.0.80.0130.05019.84
7.0.70.0170.07019.88
7.0.60.0170.07720.06
7.0.50.0070.08720.36
7.0.40.0070.08720.15
7.0.30.0170.08320.09
7.0.20.0070.08720.04
7.0.10.0100.07720.16
7.0.00.0070.08319.94
5.6.280.0030.07320.78
5.6.250.0170.07320.59
5.6.240.0170.07720.68
5.6.230.0070.08320.53
5.6.220.0100.08020.76
5.6.210.0100.08320.64
5.6.200.0130.08021.05
5.6.190.0100.08320.93
5.6.180.0100.06021.03
5.6.170.0070.09021.02
5.6.160.0030.05321.09
5.6.150.0130.07321.02
5.6.140.0130.08021.16
5.6.130.0170.08021.03
5.6.120.0100.08021.05
5.6.110.0130.07021.02
5.6.100.0070.04721.04
5.6.90.0130.07721.00
5.6.80.0030.06020.43
5.6.70.0000.08020.54
5.6.60.0070.04020.37
5.6.50.0100.08020.49
5.6.40.0070.08020.43
5.6.30.0000.05720.27
5.6.20.0200.06320.40
5.6.10.0070.08020.43
5.6.00.0070.08320.36
5.5.380.0100.08020.39
5.5.370.0200.09720.54
5.5.360.0070.08320.43
5.5.350.0130.07320.39
5.5.340.0200.07320.64
5.5.330.0100.08020.89
5.5.320.0170.03320.88
5.5.310.0130.04320.88
5.5.300.0100.05320.90
5.5.290.0070.05320.83
5.5.280.0070.06320.92
5.5.270.0000.09320.90
5.5.260.0100.08320.91
5.5.250.0070.08320.71
5.5.240.0030.06320.28
5.5.230.0030.06720.25
5.5.220.0030.05720.25
5.5.210.0100.07320.21
5.5.200.0130.07320.18
5.5.190.0130.04020.25
5.5.180.0130.08020.07
5.5.160.0130.05719.99
5.5.150.0030.07320.20
5.5.140.0070.06320.23
5.5.130.0030.08020.25
5.5.120.0170.03720.25
5.5.110.0130.04320.23
5.5.100.0030.05720.16
5.5.90.0130.07320.00
5.5.80.0070.06020.10
5.5.70.0130.04020.14
5.5.60.0030.08020.05
5.5.50.0170.06720.08
5.5.40.0000.08320.15
5.5.30.0100.07720.07
5.5.20.0130.07320.05
5.5.10.0030.08719.99
5.5.00.0030.05720.02
5.4.450.0130.07319.39
5.4.440.0030.08019.35
5.4.430.0100.08019.43
5.4.420.0070.07019.35
5.4.410.0100.07719.14
5.4.400.0100.07319.05
5.4.390.0130.07019.03
5.4.380.0000.06719.14
5.4.370.0030.07019.08
5.4.360.0130.06318.90
5.4.350.0230.05718.96
5.4.340.0100.07019.04
5.4.320.0100.05718.96
5.4.310.0130.06719.03
5.4.300.0130.07019.14
5.4.290.0130.07019.07
5.4.280.0200.06319.03
5.4.270.0070.07719.14
5.4.260.0130.06019.03
5.4.250.0030.08318.80
5.4.240.0000.08019.14
5.4.230.0030.07318.96
5.4.220.0100.07019.11
5.4.210.0100.04319.02
5.4.200.0100.07018.96
5.4.190.0100.07018.79
5.4.180.0070.07718.96
5.4.170.0070.06018.93
5.4.160.0130.05719.04
5.4.150.0070.07319.02
5.4.140.0130.05716.38
5.4.130.0070.04316.38
5.4.120.0030.07316.43
5.4.110.0030.05316.26
5.4.100.0130.06716.30
5.4.90.0030.05316.17
5.4.80.0100.04016.39
5.4.70.0100.06716.29
5.4.60.0100.05716.32
5.4.50.0070.06716.18
5.4.40.0130.06016.46
5.4.30.0170.07016.35
5.4.20.0070.04716.38
5.4.10.0100.06716.39
5.4.00.0100.05315.73
5.3.290.0070.07315.70
5.3.280.0100.07015.70
5.3.270.0130.06715.70
5.3.260.0030.08015.70
5.3.250.0030.08015.70
5.3.240.0070.07315.70
5.3.230.0170.06715.70
5.3.220.0100.07015.70
5.3.210.0100.07015.70
5.3.200.0030.07315.70
5.3.190.0130.07015.70
5.3.180.0130.03715.70
5.3.170.0200.03015.70
5.3.160.0030.06715.70
5.3.150.0070.04715.70
5.3.140.0070.07315.70
5.3.130.0100.07315.70
5.3.120.0100.07315.70
5.3.110.0070.03715.70
5.3.100.0070.07015.70
5.3.90.0030.08015.70
5.3.80.0070.07715.70
5.3.70.0070.04315.70
5.3.60.0030.07315.70
5.3.50.0130.05715.70
5.3.40.0130.07015.70
5.3.30.0100.06315.70
5.3.20.0030.07315.70
5.3.10.0030.08015.70
5.3.00.0130.07015.70
5.2.170.0070.06315.70
5.2.160.0070.06315.70
5.2.150.0070.06015.70
5.2.140.0070.04315.70
5.2.130.0070.05015.70
5.2.120.0130.05315.70
5.2.110.0100.03315.70
5.2.100.0000.06715.70
5.2.90.0070.06015.70
5.2.80.0000.06715.70
5.2.70.0030.06015.70
5.2.60.0200.05315.70
5.2.50.0100.05015.70
5.2.40.0130.05315.70
5.2.30.0030.06015.70
5.2.20.0070.06315.70
5.2.10.0100.06015.70
5.2.00.0070.05315.70
5.1.60.0030.05315.70
5.1.50.0030.05315.70
5.1.40.0000.05015.70
5.1.30.0100.02715.70
5.1.20.0000.03015.70
5.1.10.0070.04315.70
5.1.00.0030.03715.70
5.0.50.0030.04015.70
5.0.40.0070.04015.70
5.0.30.0100.05715.70
5.0.20.0100.04015.70
5.0.10.0000.02715.70
5.0.00.0030.05315.70
4.4.90.0070.03315.70
4.4.80.0030.01715.70
4.4.70.0000.03715.70
4.4.60.0030.03715.70
4.4.50.0030.03015.70
4.4.40.0000.05015.70
4.4.30.0030.03015.70
4.4.20.0070.01315.70
4.4.10.0030.01715.70
4.4.00.0030.03015.70
4.3.110.0030.03315.70
4.3.100.0030.02015.70
4.3.90.0030.03315.70
4.3.80.0000.05715.70
4.3.70.0000.03315.70
4.3.60.0030.03315.70
4.3.50.0030.02715.70
4.3.40.0000.03715.70
4.3.30.0070.02315.70
4.3.20.0000.03015.70
4.3.10.0030.02315.70
4.3.00.0030.01715.70

preferences:
56.75 ms | 400 KiB | 5 Q