3v4l.org

run code in 300+ PHP versions simultaneously
<?php $o = new stdClass(); $o->var = 123; $new_o = $o; //等于$new_o = & $o; unset($new_o); var_dump($o);

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)
8.3.60.0100.00316.63
8.3.50.0250.00522.80
8.3.40.0040.01118.85
8.3.30.0070.00719.09
8.3.20.0040.00420.35
8.3.10.0040.00421.60
8.3.00.0050.00517.50
8.2.180.0170.00316.63
8.2.170.0070.00722.96
8.2.160.0030.01020.52
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0050.00226.16
8.2.120.0090.00019.23
8.2.110.0060.00322.29
8.2.100.0040.00817.97
8.2.90.0050.00319.23
8.2.80.0040.00417.97
8.2.70.0090.00017.38
8.2.60.0050.00317.80
8.2.50.0000.00818.07
8.2.40.0070.00317.91
8.2.30.0030.00917.93
8.2.20.0040.00417.68
8.2.10.0000.00718.02
8.2.00.0050.00217.60
8.1.280.0140.00725.92
8.1.270.0040.00423.83
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0060.00322.18
8.1.230.0110.00019.09
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0030.00617.35
8.1.190.0080.00017.00
8.1.180.0000.00818.10
8.1.170.0080.00018.59
8.1.160.0000.00821.96
8.1.150.0030.00518.72
8.1.140.0030.00617.26
8.1.130.0000.00817.74
8.1.120.0050.00217.40
8.1.110.0040.00417.23
8.1.100.0030.00417.39
8.1.90.0000.00717.36
8.1.80.0030.00317.46
8.1.70.0070.00017.41
8.1.60.0050.00317.54
8.1.50.0070.00017.51
8.1.40.0040.00417.39
8.1.30.0040.00417.42
8.1.20.0030.00617.41
8.1.10.0030.00517.56
8.1.00.0040.00417.46
8.0.300.0070.00018.77
8.0.290.0000.00716.58
8.0.280.0000.00718.29
8.0.270.0040.00417.16
8.0.260.0060.00017.19
8.0.250.0030.00316.94
8.0.240.0040.00416.78
8.0.230.0000.00716.88
8.0.220.0030.00316.89
8.0.210.0000.00716.73
8.0.200.0090.00216.86
8.0.190.0080.00016.82
8.0.180.0070.00016.73
8.0.170.0020.00516.76
8.0.160.0070.00016.82
8.0.150.0000.00716.70
8.0.140.0030.00516.77
8.0.130.0030.00313.23
8.0.120.0040.00416.68
8.0.110.0030.00616.73
8.0.100.0040.00416.62
8.0.90.0070.00016.72
8.0.80.0060.01016.83
8.0.70.0040.00416.68
8.0.60.0040.00416.66
8.0.50.0040.00416.71
8.0.30.0100.00816.95
8.0.20.0090.01017.40
8.0.10.0000.00716.83
8.0.00.0130.00616.71
7.4.330.0020.00215.03
7.4.320.0060.00016.45
7.4.300.0070.00016.58
7.4.290.0040.00416.58
7.4.280.0040.00416.54
7.4.270.0000.00816.46
7.4.260.0030.00316.47
7.4.250.0050.00216.54
7.4.240.0000.00716.53
7.4.230.0040.00416.57
7.4.220.0140.00316.50
7.4.210.0130.00016.56
7.4.200.0000.00716.25
7.4.160.0040.01216.49
7.4.150.0080.01217.40
7.4.140.0120.00817.86
7.4.130.0110.01116.46
7.4.120.0100.01016.43
7.4.110.0100.01316.46
7.4.100.0090.00916.44
7.4.90.0100.00716.38
7.4.80.0100.01019.39
7.4.70.0110.00516.25
7.4.60.0070.01316.48
7.4.50.0040.00016.38
7.4.40.0110.00516.37
7.4.30.0100.00716.50
7.4.00.0120.00414.98
7.3.330.0000.00513.15
7.3.320.0000.00513.10
7.3.310.0000.00816.41
7.3.300.0030.00316.25
7.3.290.0060.01316.28
7.3.280.0070.00816.22
7.3.270.0070.01017.40
7.3.260.0120.00616.29
7.3.250.0080.00816.34
7.3.240.0100.00716.48
7.3.230.0140.00316.58
7.3.210.0060.01116.58
7.3.200.0100.00719.39
7.3.190.0070.01416.26
7.3.180.0060.00916.34
7.3.170.0100.00716.27
7.3.160.0060.00916.25
7.2.330.0060.01116.64
7.2.320.0040.01516.61
7.2.310.0120.00416.67
7.2.300.0130.00416.70
7.2.290.0100.00716.68
7.2.00.0120.00619.52
7.1.100.0000.01118.14
7.1.70.0090.00617.07
7.1.60.0110.01419.40
7.1.50.0180.00716.91
7.1.00.0030.07722.43
7.0.200.0000.00716.88
7.0.140.0000.07722.21
7.0.60.0000.05319.92
7.0.50.0200.07317.81
7.0.40.0100.07720.13
7.0.30.0300.04720.18
7.0.20.0170.07320.18
7.0.10.0070.06020.23
7.0.00.0030.04020.17
5.6.280.0070.07021.00
5.6.210.0000.07720.66
5.6.200.0030.08718.16
5.6.190.0070.08320.77
5.6.180.0300.07720.41
5.6.170.0270.03320.54
5.6.160.0170.05320.51
5.6.150.0130.07318.10
5.6.140.0130.04318.10
5.6.130.0000.04318.11
5.6.120.0070.07721.15
5.6.110.0070.08320.96
5.6.100.0100.07721.00
5.6.90.0130.05721.03
5.6.80.0300.06320.40
5.5.350.0200.04020.43
5.5.340.0030.03717.88
5.5.330.0130.08320.19
5.5.320.0230.08020.24
5.5.310.0300.04720.26
5.5.300.0130.08317.95
5.5.290.0130.07317.87
5.5.280.0070.05320.87
5.5.270.0130.07320.76
5.5.260.0070.08020.74
5.5.250.0030.08320.55
5.5.240.0030.03720.12
5.4.450.1100.07019.57
5.4.440.0230.04719.42
5.4.430.0170.05719.45
5.4.420.0200.04719.41
5.4.410.0200.04719.20
5.4.400.0200.04719.22
5.4.390.0100.06018.88
5.4.380.0070.05318.68
5.4.370.0230.04018.63
5.4.360.0270.04318.73
5.4.350.0090.04211.97
5.4.340.0090.04611.97
5.4.320.0070.04012.46
5.4.310.0060.04012.45
5.4.300.0080.03912.46
5.4.290.0050.04112.45
5.4.280.0040.04012.35
5.4.270.0060.04112.35
5.4.260.0070.04012.35
5.4.250.0070.04512.35
5.4.240.0070.04612.35
5.4.230.0050.04312.34
5.4.220.0090.03812.34
5.4.210.0060.04212.34
5.4.200.0080.03512.34
5.4.190.0060.04312.34
5.4.180.0040.04812.34
5.4.170.0080.03412.35
5.4.160.0050.03712.35
5.4.150.0040.03812.34
5.4.140.0120.04012.03
5.4.130.0060.03612.01
5.4.120.0070.04511.97
5.4.110.0090.03311.97
5.4.100.0080.04511.96
5.4.90.0060.03811.96
5.4.80.0080.03511.97
5.4.70.0110.03511.96
5.4.60.0040.04711.96
5.4.50.0090.03411.97
5.4.40.0080.03811.95
5.4.30.0060.03911.95
5.4.20.0100.03511.95
5.4.10.0080.03511.95
5.4.00.0050.04011.44
5.3.290.0050.04012.80
5.3.280.0090.03512.71
5.3.270.0070.03912.73
5.3.260.0070.04012.72
5.3.250.0050.04012.72
5.3.240.0080.03712.72
5.3.230.0080.03712.71
5.3.220.0090.03512.68
5.3.210.0070.03912.68
5.3.200.0050.03912.68
5.3.190.0080.03912.68
5.3.180.0050.04412.67
5.3.170.0070.03712.67
5.3.160.0090.03412.67
5.3.150.0050.04412.68
5.3.140.0090.03712.66
5.3.130.0060.04012.66
5.3.120.0070.05212.65
5.3.110.0060.04812.66
5.3.100.0070.03512.12
5.3.90.0040.03812.08
5.3.80.0070.03512.07
5.3.70.0040.03712.08
5.3.60.0080.03712.07
5.3.50.0050.03712.00
5.3.40.0050.03912.00
5.3.30.0030.04011.94
5.3.20.0090.03611.72
5.3.10.0070.03411.69
5.3.00.0090.03211.68
5.2.170.0050.0309.17
5.2.160.0080.0349.18
5.2.150.0040.0339.18
5.2.140.0100.0389.17
5.2.130.0070.0309.14
5.2.120.0070.0339.13
5.2.110.0090.0269.14
5.2.100.0060.0299.14
5.2.90.0060.0299.14
5.2.80.0060.0369.13
5.2.70.0080.0379.13
5.2.60.0060.0299.09
5.2.50.0040.0319.05
5.2.40.0060.0299.03
5.2.30.0050.0319.00
5.2.20.0060.0279.00
5.2.10.0040.0288.92
5.2.00.0020.0318.77
5.1.60.0040.0248.06
5.1.50.0040.0258.05
5.1.40.0050.0238.03
5.1.30.0050.0308.39
5.1.20.0050.0278.41
5.1.10.0080.0238.13
5.1.00.0040.0268.14
5.0.50.0060.0196.61
5.0.40.0030.0206.47
5.0.30.0040.0306.29
5.0.20.0020.0216.26
5.0.10.0030.0216.23
5.0.00.0080.0306.23
4.4.90.0040.0164.77
4.4.80.0020.0174.75
4.4.70.0050.0174.75
4.4.60.0040.0164.76
4.4.50.0040.0174.77
4.4.40.0040.0274.70
4.4.30.0030.0164.76
4.4.20.0040.0214.85
4.4.10.0050.0154.84
4.4.00.0010.0264.76
4.3.110.0030.0164.67
4.3.100.0020.0164.67
4.3.90.0030.0144.64
4.3.80.0060.0234.59
4.3.70.0050.0154.63
4.3.60.0010.0174.63
4.3.50.0020.0164.63
4.3.40.0010.0254.54
4.3.30.0000.0193.28
4.3.20.0050.0123.26
4.3.10.0030.0193.22
4.3.00.0130.0237.13

preferences:
43.75 ms | 401 KiB | 5 Q