3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a=array(); $a[-2]='a'; $a[-1]='b'; $a[0] ='c'; $a[ 1]='d'; $obj=(object)$a; var_dump($obj); echo $obj->{-2}.', '.$obj->{0}.', '.$obj->{1}."\n"; echo $obj->{'-2'}.', '.$obj->{'0'}.', '.$obj->{'1'}."\n"; $b =(array)$obj; echo $b[-2].', '.$b[0].', '.$b[1]."\n"; $obj=unserialize(serialize($obj)); echo $obj->{-2}.', '.$obj->{0}.', '.$obj->{1}."\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)
8.3.60.0150.00618.43
8.3.50.0080.01121.13
8.3.40.0140.00318.79
8.3.30.0100.00319.25
8.3.20.0070.00020.25
8.3.10.0000.00823.36
8.3.00.0060.00319.38
8.2.180.0180.00016.63
8.2.170.0040.01122.96
8.2.160.0040.01120.45
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0090.00019.28
8.2.110.0070.00420.52
8.2.100.0000.01217.84
8.2.90.0000.00819.09
8.2.80.0060.00317.97
8.2.70.0050.00317.63
8.2.60.0080.00018.03
8.2.50.0030.00618.07
8.2.40.0050.00320.00
8.2.30.0000.00718.10
8.2.20.0050.00217.77
8.2.10.0000.00718.05
8.2.00.0000.00817.61
8.1.280.0110.00725.92
8.1.270.0000.00922.14
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00322.06
8.1.230.0000.01119.04
8.1.220.0060.00317.76
8.1.210.0040.00418.77
8.1.200.0040.00817.23
8.1.190.0000.00817.36
8.1.180.0040.00718.10
8.1.170.0000.00818.56
8.1.160.0000.00722.09
8.1.150.0000.00718.90
8.1.140.0040.00417.50
8.1.130.0000.00717.71
8.1.120.0070.00017.33
8.1.110.0040.00417.52
8.1.100.0040.00417.38
8.1.90.0040.00417.52
8.1.80.0020.00517.49
8.1.70.0000.00717.40
8.1.60.0040.00417.60
8.1.50.0080.00017.50
8.1.40.0040.00417.48
8.1.30.0060.00317.68
8.1.20.0030.00617.68
8.1.10.0040.00417.59
8.1.00.0060.00317.51
8.0.300.0080.00718.77
8.0.290.0030.00616.58
8.0.280.0030.00318.49
8.0.270.0070.00017.28
8.0.260.0060.00017.25
8.0.250.0070.00017.06
8.0.240.0050.00316.90
8.0.230.0030.00316.93
8.0.220.0050.00217.01
8.0.210.0030.00316.88
8.0.200.0060.00017.05
8.0.190.0040.00417.07
8.0.180.0000.00917.00
8.0.170.0000.00816.97
8.0.160.0000.00716.93
8.0.150.0040.00316.90
8.0.140.0000.00716.79
8.0.130.0050.00013.41
8.0.120.0000.00816.94
8.0.110.0030.00316.96
8.0.100.0070.00016.79
8.0.90.0000.00717.04
8.0.80.0030.01316.96
8.0.70.0040.00416.84
8.0.60.0050.00316.98
8.0.50.0000.00717.05
8.0.30.0100.01217.36
8.0.20.0100.01017.40
8.0.10.0040.00416.97
8.0.00.0080.01016.81
7.4.330.0020.00215.13
7.4.320.0090.00016.57
7.4.300.0000.00616.60
7.4.290.0030.00316.58
7.4.280.0080.00016.53
7.4.270.0030.00316.47
7.4.260.0000.00716.58
7.4.250.0070.00016.63
7.4.240.0020.00616.62
7.4.230.0030.00316.42
7.4.220.0100.01316.47
7.4.210.0000.01416.48
7.4.200.0040.00416.59
7.4.160.0080.00816.29
7.4.150.0160.00817.40
7.4.140.0120.01417.86
7.4.130.0100.00916.46
7.4.120.0060.01116.57
7.4.110.0160.01016.55
7.4.100.0090.00916.52
7.4.90.0090.00916.46
7.4.80.0080.01119.39
7.4.70.0090.00916.58
7.4.60.0060.01216.41
7.4.50.0000.00816.25
7.4.40.0130.00416.51
7.4.30.0070.01016.45
7.4.00.0000.01414.84
7.3.330.0000.00513.08
7.3.320.0000.00513.20
7.3.310.0040.00416.39
7.3.300.0070.00016.38
7.3.290.0080.00516.39
7.3.280.0100.00716.39
7.3.270.0040.02317.40
7.3.260.0100.01316.75
7.3.250.0100.00716.36
7.3.240.0130.00316.46
7.3.230.0070.01016.40
7.3.210.0080.01516.31
7.3.200.0170.00319.39
7.3.190.0130.00316.63
7.3.180.0130.00316.52
7.3.170.0030.01416.57
7.3.160.0090.00616.34
7.3.10.0090.00316.36
7.3.00.0030.01016.71
7.2.330.0200.00316.75
7.2.320.0130.00316.82
7.2.310.0090.00616.40
7.2.300.0080.00916.56
7.2.290.0070.01116.71
7.2.130.0000.01216.97
7.2.120.0070.01016.79
7.2.110.0040.00716.83
7.2.100.0030.00716.95
7.2.90.0000.01116.81
7.2.80.0120.00016.93
7.2.70.0030.00617.04
7.2.60.0090.00517.01
7.2.50.0000.01216.71
7.2.40.0070.01016.82
7.2.30.0000.01516.86
7.2.20.0080.00316.71
7.2.10.0030.00916.93
7.2.00.0070.00618.19
7.1.250.0060.00615.74
7.1.200.0070.00715.88
7.1.100.0070.00417.90
7.1.70.0140.00616.96
7.1.60.0100.01419.32
7.1.50.0120.01216.93
7.1.00.0070.07322.40
7.0.200.0030.00616.84
7.0.140.0030.07322.00
7.0.60.0070.03719.94
7.0.50.0030.04017.92
7.0.40.0130.08020.04
7.0.30.0300.05020.23
7.0.20.0130.04720.28
7.0.10.0170.04020.01
7.0.00.0070.04320.29
5.6.280.0030.07320.92
5.6.210.0070.07720.71
5.6.200.0000.04318.22
5.6.190.0070.04720.57
5.6.180.0370.07020.59
5.6.170.0230.06720.46
5.6.160.0100.08020.49
5.6.150.0030.04018.11
5.6.140.0130.07318.23
5.6.130.0000.08018.21
5.6.120.0000.05721.09
5.6.110.0100.06321.14
5.6.100.0100.04720.96
5.6.90.0030.05021.02
5.6.80.0070.08020.39
5.6.70.0230.07720.27
5.5.350.0130.05020.43
5.5.340.0070.04717.88
5.5.330.0030.08720.29
5.5.320.0130.08320.16
5.5.310.0200.03720.12
5.5.300.0030.09017.97
5.5.290.0070.03717.98
5.5.280.0100.07720.98
5.5.270.0200.07320.76
5.5.260.0130.07320.64
5.5.250.0100.05720.68
5.5.240.0170.06020.28
5.4.450.0170.06019.48
5.4.440.1030.07719.52
5.4.430.0870.05019.64
5.4.420.0870.06319.54
5.4.410.1030.04719.49
5.4.400.0770.06019.17
5.4.390.0930.06319.23
5.4.380.0070.05719.14
5.4.370.0700.05719.19
5.4.360.0700.06718.81
5.4.350.0300.03319.22
5.4.340.0080.03111.97
5.4.320.0060.03512.46
5.4.310.0050.03712.46
5.4.300.0030.03812.46
5.4.290.0070.03912.46
5.4.280.0050.03612.36
5.4.270.0050.04112.36
5.4.260.0040.03912.36
5.4.250.0090.04012.35
5.4.240.0050.03512.36
5.4.230.0060.04212.34
5.4.220.0070.03712.35
5.4.210.0060.03812.34
5.4.200.0070.04012.34
5.4.190.0050.03712.34
5.4.180.0080.03712.34
5.4.170.0060.03612.36
5.4.160.0060.03612.35
5.4.150.0070.03912.34
5.4.140.0040.04312.03
5.4.130.0060.03612.02
5.4.120.0030.03911.97
5.4.110.0090.04611.97
5.4.100.0060.04011.97
5.4.90.0070.03611.97
5.4.80.0050.04311.97
5.4.70.0070.04111.96
5.4.60.0060.03811.97
5.4.50.0060.03811.96
5.4.40.0070.04511.96
5.4.30.0060.03911.95
5.4.20.0070.04511.95
5.4.10.0060.03511.96
5.4.00.0070.04111.45
5.3.290.0070.03912.80
5.3.280.0100.05112.71
5.3.270.0060.04512.72
5.3.260.0090.03812.72
5.3.250.0060.03812.72
5.3.240.0110.03312.72
5.3.230.0080.03712.70
5.3.220.0050.03812.68
5.3.210.0060.03912.68
5.3.200.0060.03612.68
5.3.190.0100.03412.68
5.3.180.0080.03812.67
5.3.170.0080.03612.67
5.3.160.0070.04412.68
5.3.150.0050.03812.67
5.3.140.0120.02912.66
5.3.130.0100.03812.66
5.3.120.0060.03912.66
5.3.110.0070.04512.66
5.3.100.0050.04012.12
5.3.90.0040.04012.09
5.3.80.0050.03712.07
5.3.70.0050.04412.07
5.3.60.0060.03512.06
5.3.50.0070.03712.00
5.3.40.0050.03712.00
5.3.30.0070.03511.95
5.3.20.0080.03411.73
5.3.10.0050.03711.70
5.3.00.0050.03611.68
5.2.170.0040.0309.19
5.2.160.0060.0279.18
5.2.150.0060.0289.19
5.2.140.0020.0339.18
5.2.130.0070.0309.14
5.2.120.0070.0269.15
5.2.110.0080.0279.15
5.2.100.0030.0309.14
5.2.90.0060.0339.14
5.2.80.0040.0429.14
5.2.70.0040.0329.14
5.2.60.0040.0349.10
5.2.50.0040.0309.06
5.2.40.0060.0269.04
5.2.30.0050.0349.02
5.2.20.0050.0299.00
5.2.10.0090.0238.94
5.2.00.0060.0348.80
5.1.60.0040.0238.09
5.1.50.0030.0248.09
5.1.40.0030.0248.07
5.1.30.0050.0258.42
5.1.20.0030.0268.44
5.1.10.0030.0268.16
5.1.00.0050.0328.16
5.0.50.0030.0276.65
5.0.40.0050.0196.51
5.0.30.0050.0346.32
5.0.20.0040.0176.29
5.0.10.0010.0216.26
5.0.00.0040.0296.25
4.4.90.0030.0144.78
4.4.80.0030.0254.75
4.4.70.0020.0214.76
4.4.60.0020.0164.75
4.4.50.0010.0234.77
4.4.40.0020.0314.70
4.4.30.0010.0174.76
4.4.20.0020.0164.85
4.4.10.0020.0164.84
4.4.00.0030.0294.76
4.3.110.0030.0144.67
4.3.100.0020.0154.67
4.3.90.0040.0184.63
4.3.80.0030.0324.59
4.3.70.0020.0154.63
4.3.60.0020.0154.63
4.3.50.0030.0154.62
4.3.40.0020.0264.54
4.3.30.0020.0223.29
4.3.20.0020.0203.26
4.3.10.0040.0143.22
4.3.00.0200.0206.93

preferences:
53.14 ms | 401 KiB | 5 Q