3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a1 = [[new StdClass], [new StdClass]]; $a2 = [[new StdClass], [new StdClass]]; var_dump($a1, $a2); $a1 = $a2; var_dump($a1, $a2);

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)
8.3.60.0150.00018.43
8.3.50.0120.00721.97
8.3.40.0030.01318.60
8.3.30.0040.01418.95
8.3.20.0070.00020.16
8.3.10.0080.00020.42
8.3.00.0030.00619.38
8.2.180.0140.00716.38
8.2.170.0120.00922.96
8.2.160.0100.00320.28
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0070.00322.41
8.2.110.0030.00620.58
8.2.100.0080.00418.03
8.2.90.0040.00419.23
8.2.80.0040.00417.97
8.2.70.0100.00017.63
8.2.60.0050.00318.04
8.2.50.0030.00618.07
8.2.40.0000.00818.09
8.2.30.0000.00818.05
8.2.20.0070.00017.73
8.2.10.0040.00418.04
8.2.00.0040.00417.58
8.1.280.0180.00325.92
8.1.270.0040.00422.19
8.1.260.0080.00026.35
8.1.250.0030.00528.09
8.1.240.0000.00923.74
8.1.230.0060.00619.15
8.1.220.0050.00217.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0050.00317.22
8.1.180.0000.00818.10
8.1.170.0030.00618.53
8.1.160.0040.00422.04
8.1.150.0050.00318.80
8.1.140.0050.00217.34
8.1.130.0040.00417.93
8.1.120.0000.00817.35
8.1.110.0040.00417.43
8.1.100.0050.00317.36
8.1.90.0000.00717.46
8.1.80.0030.00517.48
8.1.70.0030.00317.44
8.1.60.0020.00517.63
8.1.50.0090.00017.54
8.1.40.0040.00417.53
8.1.30.0030.00617.61
8.1.20.0000.00717.63
8.1.10.0070.00017.51
8.1.00.0070.00017.48
8.0.300.0070.00018.77
8.0.290.0030.00616.63
8.0.280.0070.00018.48
8.0.270.0000.00717.29
8.0.260.0000.00617.24
8.0.250.0060.00017.00
8.0.240.0000.00716.94
8.0.230.0070.00016.97
8.0.220.0030.00516.93
8.0.210.0030.00316.90
8.0.200.0000.00616.93
8.0.190.0040.00416.88
8.0.180.0000.00716.94
8.0.170.0030.00616.78
8.0.160.0000.00816.85
8.0.150.0040.00416.79
8.0.140.0000.00816.76
8.0.130.0030.00313.24
8.0.120.0030.00516.75
8.0.110.0040.00416.74
8.0.100.0050.00216.74
8.0.90.0040.00416.77
8.0.80.0060.00916.77
8.0.70.0080.00016.77
8.0.60.0040.00416.75
8.0.50.0000.00716.73
8.0.30.0110.01217.23
8.0.20.0100.00917.40
8.0.10.0030.00516.87
8.0.00.0110.01116.77
7.4.330.0050.00015.00
7.4.320.0030.00316.59
7.4.300.0000.00716.59
7.4.290.0030.00316.62
7.4.280.0020.00516.56
7.4.270.0000.00716.56
7.4.260.0040.00416.58
7.4.250.0000.00816.36
7.4.240.0050.00216.54
7.4.230.0030.00316.40
7.4.220.0070.01416.46
7.4.210.0110.01016.66
7.4.200.0030.00316.49
7.4.160.0000.01616.48
7.4.150.0120.00617.40
7.4.140.0060.01217.86
7.4.130.0080.01316.37
7.4.120.0080.00916.65
7.4.110.0130.00316.46
7.4.100.0110.00816.48
7.4.90.0100.01016.49
7.4.80.0130.00919.39
7.4.70.0060.01216.60
7.4.60.0090.00916.35
7.4.50.0020.00216.54
7.4.40.0130.00316.35
7.4.30.0130.01016.64
7.4.00.0030.00914.85
7.3.330.0030.00213.09
7.3.320.0030.00313.18
7.3.310.0040.00416.12
7.3.300.0030.00316.23
7.3.290.0090.00616.28
7.3.280.0090.01016.27
7.3.270.0130.00517.40
7.3.260.0090.00916.48
7.3.250.0100.00816.30
7.3.240.0080.00816.24
7.3.230.0100.00716.39
7.3.210.0070.01416.27
7.3.200.0130.01019.39
7.3.190.0140.00316.22
7.3.180.0100.00616.16
7.3.170.0100.00616.32
7.3.160.0030.01916.48
7.2.330.0170.00016.41
7.2.320.0100.00616.66
7.2.310.0090.00916.34
7.2.300.0070.01016.72
7.2.290.0060.01816.35
7.2.60.0110.00416.82
7.2.00.0000.01019.03
7.1.200.0040.01115.83
7.1.100.0080.00318.27
7.1.70.0030.01016.77
7.1.60.0180.00719.32
7.1.50.0000.02316.80
7.1.00.0100.06722.46
7.0.200.0060.00316.57
7.0.140.0000.07722.04
7.0.60.0070.08319.89
7.0.50.0030.04017.86
7.0.40.0030.08720.06
7.0.30.0700.06020.09
7.0.20.0300.05320.19
7.0.10.0070.04320.12
7.0.00.0100.07720.33
5.6.280.0070.07021.07
5.6.210.0170.06720.55
5.6.200.0030.04718.12
5.6.190.0070.04020.60
5.6.180.0470.07720.41
5.6.170.0370.08320.51
5.6.160.0030.04320.41
5.6.150.0100.07018.17
5.6.140.0030.04018.19
5.6.130.0170.03718.14
5.6.120.0100.08321.01
5.6.110.0070.08020.98
5.6.100.0030.08721.13
5.6.90.0030.04720.99
5.6.80.0100.05020.38
5.5.350.0130.07720.31
5.5.340.0070.04017.98
5.5.330.0130.07320.47
5.5.320.0470.06720.18
5.5.310.0170.05020.17
5.5.300.0100.07317.92
5.5.290.0130.04717.96
5.5.280.0100.03320.86
5.5.270.0030.08720.77
5.5.260.0130.03720.79
5.5.250.0000.04320.60
5.5.240.0170.08020.14
5.4.450.0370.04719.58
5.4.440.0900.03719.41
5.4.430.0500.03719.25
5.4.420.0900.00019.29
5.4.410.0670.00019.19
5.4.400.0630.00019.23
5.4.390.0670.00019.00
5.4.380.0670.00019.15
5.4.370.0630.00018.95
5.4.360.0670.00019.08
5.4.350.0770.00018.95
5.4.340.0700.00018.96
5.4.320.0040.04012.45
5.4.310.0040.04112.45
5.4.300.0080.03712.45
5.4.290.0060.04012.45
5.4.280.0060.03612.35
5.4.270.0060.03612.35
5.4.260.0060.03812.34
5.4.250.0070.03612.35
5.4.240.0030.03912.35
5.4.230.0070.03912.34
5.4.220.0050.04612.34
5.4.210.0060.03512.34
5.4.200.0060.03812.34
5.4.190.0120.03012.34
5.4.180.0090.03412.34
5.4.170.0060.03612.35
5.4.160.0090.03412.34
5.4.150.0080.03512.34
5.4.140.0070.03812.02
5.4.130.0060.03612.01
5.4.120.0060.03611.97
5.4.110.0090.03811.96
5.4.100.0070.03711.96
5.4.90.0050.03811.96
5.4.80.0030.04211.96
5.4.70.0070.03711.96
5.4.60.0080.03311.96
5.4.50.0060.03511.96
5.4.40.0090.03711.95
5.4.30.0060.03611.95
5.4.20.0040.04611.95
5.4.10.0050.03511.94
5.4.00.0040.03811.43
5.3.290.0080.05012.80
5.3.280.0110.04512.71
5.3.270.0060.04012.72
5.3.260.0060.04712.72
5.3.250.0060.03712.72
5.3.240.0050.03812.72
5.3.230.0070.03812.71
5.3.220.0060.03712.68
5.3.210.0090.03812.68
5.3.200.0070.03812.68
5.3.190.0040.04112.68
5.3.180.0070.03812.67
5.3.170.0070.04812.67
5.3.160.0090.04212.67
5.3.150.0050.03812.67
5.3.140.0080.03512.66
5.3.130.0090.03612.66
5.3.120.0060.04212.66
5.3.110.0070.04012.65
5.3.100.0080.04012.12
5.3.90.0040.05312.09
5.3.80.0100.04412.07
5.3.70.0100.04712.07
5.3.60.0060.05012.07
5.3.50.0090.04712.00
5.3.40.0030.04612.00
5.3.30.0040.04311.95
5.3.20.0040.03911.72
5.3.10.0070.03511.70
5.3.00.0040.03711.68
5.2.170.0070.0289.18
5.2.160.0060.0349.18
5.2.150.0040.0309.18
5.2.140.0070.0289.18
5.2.130.0030.0309.14
5.2.120.0040.0289.14
5.2.110.0100.0239.14
5.2.100.0020.0309.14
5.2.90.0070.0299.14
5.2.80.0050.0309.14
5.2.70.0060.0319.14
5.2.60.0020.0409.09
5.2.50.0070.0339.05
5.2.40.0050.0309.03
5.2.30.0020.0339.01
5.2.20.0050.0299.00
5.2.10.0060.0268.93
5.2.00.0040.0328.78
5.1.60.0060.0248.07
5.1.50.0030.0268.06
5.1.40.0050.0248.05
5.1.30.0010.0298.39
5.1.20.0050.0278.41
5.1.10.0050.0258.14
5.1.00.0040.0298.14
5.0.50.0070.0186.62
5.0.40.0020.0276.48
5.0.30.0030.0386.29
5.0.20.0050.0246.26
5.0.10.0060.0196.24
5.0.00.0050.0306.23
4.4.90.0030.0154.78
4.4.80.0030.0154.75
4.4.70.0030.0154.75
4.4.60.0030.0154.76
4.4.50.0020.0164.77
4.4.40.0060.0214.71
4.4.30.0020.0194.76
4.4.20.0030.0204.85
4.4.10.0070.0194.84
4.4.00.0040.0314.76
4.3.110.0030.0214.66
4.3.100.0030.0164.67
4.3.90.0030.0174.63
4.3.80.0040.0274.58
4.3.70.0060.0174.63
4.3.60.0010.0224.63
4.3.50.0030.0214.63
4.3.40.0070.0204.54
4.3.30.0090.0103.29
4.3.20.0060.0143.26
4.3.10.0030.0193.22
4.3.00.0130.01013.59

preferences:
42.95 ms | 401 KiB | 5 Q