3v4l.org

run code in 300+ PHP versions simultaneously
<?php $rose = "black"; ${"rose"} = "white"; $rose = "red"; print_r(${"rose"}); echo "\n\n"; $arr{" "} = 99; var_dump($arr); $o = (object) $arr; var_dump($o); echo $o->{" "},"\n";

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)
8.3.70.0070.00716.63
8.3.60.0140.00018.30
8.3.50.0110.00821.98
8.3.40.0140.00018.82
8.3.30.0100.00318.97
8.3.20.0040.00420.21
8.3.10.0060.00323.55
8.3.00.0030.00519.25
8.2.180.0110.00717.93
8.2.170.0060.00822.96
8.2.160.0070.00720.35
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0090.00026.16
8.2.120.0040.00422.28
8.2.110.0000.00920.52
8.2.100.0060.00619.39
8.2.90.0070.00318.97
8.2.80.0080.00017.97
8.2.70.0090.00017.50
8.2.60.0000.00817.80
8.2.50.0000.00819.23
8.2.40.0040.00419.76
8.2.30.0040.00417.99
8.2.20.0040.00417.61
8.2.10.0040.00417.80
8.2.00.0060.00317.48
8.1.280.0120.00625.92
8.1.270.0090.00022.02
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00620.88
8.1.230.0080.00419.08
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0080.00017.10
8.1.190.0030.00517.10
8.1.180.0070.00018.10
8.1.170.0000.00818.50
8.1.160.0070.00022.01
8.1.150.0000.00718.70
8.1.140.0050.00217.38
8.1.130.0000.00717.74
8.1.120.0070.00017.33
8.1.110.0040.00417.27
8.1.100.0040.00417.31
8.1.90.0000.00717.22
8.1.80.0040.00417.23
8.1.70.0030.00317.29
8.1.60.0000.00817.49
8.1.50.0000.00817.29
8.1.40.0000.00817.32
8.1.30.0030.00617.38
8.1.20.0030.00617.48
8.1.10.0050.00317.25
8.1.00.0050.00217.27
8.0.300.0040.00418.77
8.0.290.0000.00716.58
8.0.280.0040.00218.30
8.0.270.0000.00717.02
8.0.260.0030.00317.04
8.0.250.0000.00716.92
8.0.240.0000.00716.76
8.0.230.0000.00716.86
8.0.220.0030.00616.84
8.0.210.0030.00316.80
8.0.200.0030.00316.76
8.0.190.0040.00416.82
8.0.180.0000.00716.83
8.0.170.0040.00416.73
8.0.160.0000.00716.82
8.0.150.0040.00416.69
8.0.140.0050.00216.83
8.0.130.0000.00513.29
8.0.120.0030.00516.83
8.0.110.0030.00516.78
8.0.100.0070.00016.80
8.0.90.0000.00716.88
8.0.80.0110.00316.86
8.0.70.0030.00316.82
8.0.60.0000.00716.77
8.0.50.0000.00716.92
8.0.30.0110.00917.04
8.0.20.0080.01217.40
8.0.10.0030.00516.81
8.0.00.0130.00416.71
7.4.330.0000.00515.00
7.4.320.0000.00616.52
7.4.300.0060.00016.49
7.4.290.0030.00316.58
7.4.280.0060.00316.64
7.4.270.0030.00316.48
7.4.260.0000.00716.40
7.4.250.0040.00416.56
7.4.240.0020.00516.55
7.4.230.0040.00416.30
7.4.220.0100.00716.62
7.4.210.0100.01016.59
7.4.200.0030.00316.60
7.4.160.0080.00816.57
7.4.150.0230.00717.40
7.4.140.0100.00817.86
7.4.130.0070.01016.47
7.4.120.0120.00516.55
7.4.110.0130.00816.44
7.4.100.0060.01216.48
7.4.90.0120.00616.53
7.4.80.0150.00919.39
7.4.70.0080.00816.63
7.4.60.0040.01416.61
7.4.50.0050.00016.62
7.4.40.0110.00516.66
7.4.30.0070.01016.58
7.4.00.0140.00414.98
7.3.330.0000.00513.10
7.3.320.0000.00513.21
7.3.310.0000.00716.23
7.3.300.0060.00016.25
7.3.290.0090.00916.22
7.3.280.0060.01216.24
7.3.270.0030.01317.40
7.3.260.0140.00416.37
7.3.250.0090.01116.49
7.3.240.0060.01216.33
7.3.230.0150.00316.39
7.3.210.0170.00016.46
7.3.200.0030.01719.39
7.3.190.0120.00916.35
7.3.180.0070.01016.21
7.3.170.0090.01216.39
7.3.160.0030.01316.36
7.3.10.0070.00716.46
7.3.00.0090.00016.77
7.2.330.0130.00316.53
7.2.320.0090.01116.61
7.2.310.0120.01216.49
7.2.300.0030.01916.71
7.2.290.0130.01016.50
7.2.130.0110.00717.00
7.2.120.0070.00716.73
7.2.110.0170.00816.83
7.2.100.0090.00616.91
7.2.90.0000.01516.94
7.2.80.0070.00716.99
7.2.70.0090.00617.03
7.2.60.0070.00716.98
7.2.50.0060.00917.07
7.2.40.0130.00316.68
7.2.30.0110.00416.93
7.2.20.0000.01417.08
7.2.10.0100.00016.87
7.2.00.0060.01118.11
7.1.250.0070.00715.92
7.1.100.0030.00917.82
7.1.70.0030.00517.09
7.1.60.0090.01519.11
7.1.50.0170.00717.05
7.1.00.0070.07322.37
7.0.200.0000.00916.76
7.0.140.0030.06722.16
7.0.60.0100.07019.76
7.0.50.0100.05017.82
7.0.40.0070.08020.05
7.0.30.0530.06320.21
7.0.20.0130.05320.16
7.0.10.0130.08320.33
7.0.00.0100.06020.07
5.6.280.0070.07020.81
5.6.210.0130.07720.61
5.6.200.0100.08018.17
5.6.190.0030.08720.63
5.6.180.0300.08020.41
5.6.170.0070.05020.36
5.6.160.0000.04320.33
5.6.150.0030.08018.22
5.6.140.0130.06718.17
5.6.130.0100.05018.16
5.6.120.0100.08021.00
5.6.110.0130.08320.97
5.6.100.0070.04320.96
5.6.90.0030.05720.95
5.6.80.0100.07720.40
5.5.350.0130.08320.34
5.5.340.0030.08717.86
5.5.330.0030.05020.15
5.5.320.0070.05320.13
5.5.310.0270.03720.20
5.5.300.0130.07017.95
5.5.290.0100.08717.96
5.5.280.0130.03320.86
5.5.270.0070.08320.63
5.5.260.0130.05320.79
5.5.250.0170.06020.58
5.5.240.0270.05320.13
5.4.450.0730.06019.56
5.4.440.0470.04719.62
5.4.430.0030.06319.55
5.4.420.0670.00019.46
5.4.410.0630.00019.39
5.4.400.0630.00019.02
5.4.390.0630.00019.09
5.4.380.0630.00018.98
5.4.370.0630.00019.05
5.4.360.0630.00019.05
5.4.350.0630.00019.09
5.4.340.0090.03111.97
5.4.320.0050.03812.46
5.4.310.0070.03812.45
5.4.300.0090.03812.45
5.4.290.0100.03312.45
5.4.280.0130.02712.35
5.4.270.0050.04612.35
5.4.260.0060.04512.35
5.4.250.0070.03612.35
5.4.240.0060.03812.35
5.4.230.0070.03612.34
5.4.220.0080.03412.34
5.4.210.0070.03512.34
5.4.200.0070.04112.34
5.4.190.0090.03412.34
5.4.180.0070.03312.34
5.4.170.0060.04412.35
5.4.160.0020.03812.35
5.4.150.0070.03412.34
5.4.140.0020.04012.02
5.4.130.0090.03312.01
5.4.120.0030.03811.97
5.4.110.0030.03711.97
5.4.100.0080.03811.97
5.4.90.0200.06511.97
5.4.80.0120.04311.97
5.4.70.0130.04211.96
5.4.60.0100.04411.96
5.4.50.0040.03911.96
5.4.40.0060.03411.95
5.4.30.0050.03611.95
5.4.20.0070.03311.95
5.4.10.0060.03411.95
5.4.00.0030.03811.44
5.3.290.0070.03712.80
5.3.280.0060.03712.71
5.3.270.0070.04212.72
5.3.260.0070.03712.72
5.3.250.0030.04012.72
5.3.240.0080.03412.72
5.3.230.0020.04012.71
5.3.220.0080.03312.68
5.3.210.0040.03912.68
5.3.200.0060.03612.68
5.3.190.0050.03712.67
5.3.180.0070.03512.67
5.3.170.0110.03112.67
5.3.160.0050.03812.67
5.3.150.0070.03512.67
5.3.140.0050.03912.66
5.3.130.0070.04012.65
5.3.120.0100.03812.66
5.3.110.0050.04112.65
5.3.100.0050.03612.12
5.3.90.0060.03412.09
5.3.80.0040.03712.07
5.3.70.0060.03412.07
5.3.60.0020.04012.06
5.3.50.0070.03512.00
5.3.40.0080.03412.00
5.3.30.0080.03211.94
5.3.20.0110.02911.72
5.3.10.0060.03711.69
5.3.00.0090.03411.68
5.2.170.0050.0329.18
5.2.160.0060.0299.18
5.2.150.0060.0299.18
5.2.140.0040.0319.18
5.2.130.0070.0279.14
5.2.120.0060.0279.14
5.2.110.0080.0269.14
5.2.100.0040.0299.14
5.2.90.0080.0259.13
5.2.80.0040.0309.14
5.2.70.0070.0359.13
5.2.60.0050.0299.09
5.2.50.0070.0279.05
5.2.40.0080.0249.04
5.2.30.0020.0319.01
5.2.20.0050.0289.00
5.2.10.0060.0268.93
5.2.00.0070.0268.79
5.1.60.0010.0268.08
5.1.50.0010.0288.08
5.1.40.0080.0208.06
5.1.30.0060.0238.41
5.1.20.0040.0268.43
5.1.10.0050.0258.16
5.1.00.0040.0258.16
5.0.50.0050.0196.63
5.0.40.0040.0186.49
5.0.30.0030.0316.30
5.0.20.0010.0216.27
5.0.10.0070.0186.24
5.0.00.0010.0326.24
4.4.90.0030.0154.78
4.4.80.0050.0134.75
4.4.70.0050.0134.76
4.4.60.0030.0154.75
4.4.50.0030.0154.77
4.4.40.0040.0254.71
4.4.30.0030.0154.76
4.4.20.0030.0154.85
4.4.10.0020.0164.85
4.4.00.0030.0244.75
4.3.110.0020.0154.67
4.3.100.0050.0114.67
4.3.90.0000.0174.64
4.3.80.0060.0264.58
4.3.70.0040.0184.63
4.3.60.0030.0154.63
4.3.50.0010.0214.63
4.3.40.0010.0324.54
4.3.30.0020.0163.30
4.3.20.0030.0203.27
4.3.10.0010.0233.23
4.3.00.0100.0307.40

preferences:
61.19 ms | 401 KiB | 5 Q