3v4l.org

run code in 300+ PHP versions simultaneously
<?php $st = new stdClass(); $st->q = new stdClass(); $st->q->k = 1; $st->q->w = 2; $kl = $st; unset($kl->q->k); print_r($st); print_r($kl);

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)
8.3.60.0060.00918.55
8.3.50.0160.00522.11
8.3.40.0130.00318.68
8.3.30.0040.01419.21
8.3.20.0030.00720.34
8.3.10.0110.00421.69
8.3.00.0050.00317.77
8.2.180.0200.00316.63
8.2.170.0120.00322.96
8.2.160.0060.00920.31
8.2.150.0050.00224.18
8.2.140.0080.00024.66
8.2.130.0000.01426.16
8.2.120.0060.00321.04
8.2.110.0070.00321.07
8.2.100.0040.01117.76
8.2.90.0000.00819.11
8.2.80.0000.00817.97
8.2.70.0030.00617.38
8.2.60.0040.00417.80
8.2.50.0030.00618.07
8.2.40.0000.00718.00
8.2.30.0030.00617.89
8.2.20.0050.00317.63
8.2.10.0070.00018.01
8.2.00.0040.00417.63
8.1.280.0120.00625.92
8.1.270.0040.00423.69
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.14
8.1.230.0110.00418.81
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0050.00517.35
8.1.190.0040.00417.23
8.1.180.0000.00818.10
8.1.170.0000.00818.65
8.1.160.0000.00821.93
8.1.150.0000.00718.78
8.1.140.0040.00417.33
8.1.130.0030.00317.79
8.1.120.0040.00417.40
8.1.110.0040.00317.38
8.1.100.0030.00517.33
8.1.90.0040.00417.40
8.1.80.0040.00417.39
8.1.70.0050.00317.35
8.1.60.0060.00317.39
8.1.50.0040.00417.52
8.1.40.0050.00317.45
8.1.30.0090.00017.57
8.1.20.0000.00717.63
8.1.10.0000.00817.61
8.1.00.0000.00717.48
8.0.300.0020.00520.23
8.0.290.0040.00416.75
8.0.280.0000.00718.32
8.0.270.0030.00317.19
8.0.260.0000.00617.16
8.0.250.0030.00316.86
8.0.240.0000.00616.94
8.0.230.0000.00716.88
8.0.220.0030.00316.86
8.0.210.0000.00816.74
8.0.200.0000.00616.94
8.0.190.0000.00916.86
8.0.180.0070.00016.95
8.0.170.0070.00016.92
8.0.160.0070.00016.99
8.0.150.0040.00416.79
8.0.140.0070.00016.85
8.0.130.0030.00313.34
8.0.120.0000.00816.87
8.0.110.0040.00416.82
8.0.100.0070.00016.75
8.0.90.0040.00416.87
8.0.80.0120.00316.79
8.0.70.0000.00816.88
8.0.60.0040.00416.74
8.0.50.0000.00816.86
8.0.30.0100.00916.96
8.0.20.0060.01217.40
8.0.10.0030.00516.81
8.0.00.0110.01016.63
7.4.330.0020.00215.00
7.4.320.0000.00616.55
7.4.300.0000.00716.39
7.4.290.0000.01016.54
7.4.280.0030.00616.53
7.4.270.0000.00716.49
7.4.260.0000.00716.55
7.4.250.0040.00416.51
7.4.240.0020.00516.51
7.4.230.0030.00316.33
7.4.220.0090.00916.46
7.4.210.0060.00816.58
7.4.200.0030.00316.43
7.4.160.0060.00916.52
7.4.150.0120.00917.40
7.4.140.0090.00917.86
7.4.130.0120.00516.48
7.4.120.0080.00816.45
7.4.110.0040.01316.51
7.4.100.0070.01416.47
7.4.90.0100.01016.54
7.4.80.0070.01419.39
7.4.70.0120.00616.40
7.4.60.0130.00316.36
7.4.50.0050.00016.51
7.4.40.0080.01016.36
7.4.30.0060.00916.70
7.4.00.0050.01214.91
7.3.330.0070.00013.24
7.3.320.0060.00013.27
7.3.310.0000.00716.29
7.3.300.0000.00716.23
7.3.290.0060.00916.29
7.3.280.0100.00916.34
7.3.270.0100.00717.40
7.3.260.0030.01316.44
7.3.250.0120.00716.52
7.3.240.0110.00716.47
7.3.230.0130.00316.51
7.3.210.0140.00316.45
7.3.200.0080.00819.39
7.3.190.0120.00916.65
7.3.180.0050.01016.63
7.3.170.0110.01116.31
7.3.160.0130.00716.48
7.3.120.0080.01014.77
7.3.110.0090.00914.90
7.3.100.0080.00614.77
7.3.90.0060.01014.86
7.3.80.0080.00714.76
7.3.70.0050.00814.85
7.3.60.0090.00514.67
7.3.50.0060.00914.75
7.3.40.0070.00614.83
7.3.30.0040.00714.63
7.3.20.0060.00616.61
7.3.10.0060.00616.61
7.3.00.0070.00716.67
7.2.330.0130.00716.55
7.2.320.0120.00916.70
7.2.310.0100.00716.52
7.2.300.0070.01016.43
7.2.290.0150.00616.44
7.2.250.0080.00915.06
7.2.240.0080.01114.93
7.2.230.0060.00715.02
7.2.220.0070.00614.96
7.2.210.0070.00615.00
7.2.200.0040.00914.95
7.2.190.0090.00614.98
7.2.180.0090.00715.00
7.2.170.0050.00714.94
7.2.60.0030.00917.01
7.2.00.0000.01519.30
7.1.330.0030.01115.80
7.1.320.0090.00315.62
7.1.310.0050.01015.64
7.1.300.0060.00715.54
7.1.290.0050.00615.55
7.1.280.0060.00715.68
7.1.270.0090.00515.78
7.1.260.0030.00915.55
7.1.200.0090.00615.78
7.1.100.0030.01018.00
7.1.70.0000.00816.86
7.1.60.0140.01019.25
7.1.50.0070.01316.93
7.1.00.0030.07722.45
7.0.200.0030.00516.70
7.0.140.0070.07322.08
7.0.60.0070.04319.92
7.0.50.0000.04317.92
7.0.40.0070.06020.04
7.0.30.0170.04320.21
7.0.20.0200.07720.13
7.0.10.0030.05320.04
7.0.00.0270.04020.19
5.6.210.0070.04020.46
5.6.200.0100.06318.18
5.6.190.0170.07320.35
5.6.180.0170.07020.45
5.6.170.0300.07320.47
5.6.160.0100.05020.72
5.6.150.0030.04318.16
5.6.140.0070.08318.16
5.6.130.0100.08318.11
5.6.120.0130.07720.98
5.6.110.0030.08720.96
5.6.100.0200.04320.95
5.6.90.0100.04720.88
5.6.80.0070.05320.38
5.5.350.0070.07720.32
5.5.340.0130.04718.02
5.5.330.0130.08020.28
5.5.320.0070.08320.29
5.5.310.0230.05020.20
5.5.300.0030.04318.00
5.5.290.0130.06718.02
5.5.280.0100.08320.94
5.5.270.0030.04720.72
5.5.260.0170.06320.72
5.5.250.0070.06720.49
5.5.240.4230.03320.27
5.4.450.0470.04719.41
5.4.440.0130.04319.14
5.4.430.0330.04319.13
5.4.420.0330.03019.39
5.4.410.0470.02719.30
5.4.400.0370.03319.09
5.4.390.0530.03719.08
5.4.380.0200.05718.73
5.4.370.0170.05318.62
5.4.360.0130.05318.71
5.4.350.0200.06318.66
5.4.340.0200.04718.63
5.4.320.0020.03912.45
5.4.310.0040.04012.45
5.4.300.0080.03512.45
5.4.290.0070.03812.45
5.4.280.0030.03812.35
5.4.270.0060.03512.35
5.4.260.0050.03712.35
5.4.250.0110.03912.35
5.4.240.0080.03512.35
5.4.230.0080.03912.34
5.4.220.0050.04012.34
5.4.210.0050.03612.34
5.4.200.0050.04112.34
5.4.190.0050.03712.34
5.4.180.0070.03912.34
5.4.170.0070.03612.35
5.4.160.0100.03912.34
5.4.150.0060.04112.34
5.4.140.0090.04012.02
5.4.130.0080.03712.01
5.4.120.0060.04111.97
5.4.110.0040.03711.97
5.4.100.0080.03311.97
5.4.90.0110.03211.96
5.4.80.0080.03711.96
5.4.70.0080.03611.96
5.4.60.0080.03211.96
5.4.50.0060.03611.96
5.4.40.0080.03311.95
5.4.30.0070.03511.95
5.4.20.0050.03811.95
5.4.10.0070.03911.95
5.4.00.0040.03711.44
5.3.290.0050.04012.80
5.3.280.0070.03712.71
5.3.270.0080.03612.73
5.3.260.0080.03712.72
5.3.250.0100.05012.72
5.3.240.0080.04112.72
5.3.230.0040.04012.71
5.3.220.0110.03212.68
5.3.210.0080.03712.68
5.3.200.0060.03712.68
5.3.190.0090.05412.68
5.3.180.0110.04712.68
5.3.170.0040.05412.67
5.3.160.0090.03412.67
5.3.150.0130.03812.68
5.3.140.0040.04012.66
5.3.130.0060.03912.66
5.3.120.0070.04312.66
5.3.110.0110.05012.65
5.3.100.0120.04612.12
5.3.90.0030.04912.08
5.3.80.0050.03912.07
5.3.70.0110.03212.08
5.3.60.0040.04712.06
5.3.50.0070.04112.00
5.3.40.0060.03712.00
5.3.30.0080.03311.95
5.3.20.0070.03511.72
5.3.10.0080.03411.69
5.3.00.0100.03811.68
5.2.170.0040.0339.18
5.2.160.0100.0749.18
5.2.150.0070.0319.18
5.2.140.0070.0309.18
5.2.130.0070.0289.14
5.2.120.0050.0299.13
5.2.110.0040.0359.14
5.2.100.0030.0309.14
5.2.90.0040.0339.14
5.2.80.0060.0299.14
5.2.70.0050.0339.14
5.2.60.0060.0309.09
5.2.50.0070.0289.06
5.2.40.0070.0299.03
5.2.30.0090.0279.01
5.2.20.0060.0299.00
5.2.10.0060.0348.93
5.2.00.0060.0348.79
5.1.60.0130.0248.08
5.1.50.0060.0258.07
5.1.40.0070.0238.06
5.1.30.0070.0278.41
5.1.20.0050.0458.43
5.1.10.0040.0358.16
5.1.00.0050.0328.16
5.0.50.0060.0236.63
5.0.40.0060.0236.48
5.0.30.0070.0376.30
5.0.20.0040.0246.27
5.0.10.0140.0716.25
5.0.00.0120.0556.24
4.4.90.0020.0204.78
4.4.80.0050.0334.76
4.4.70.0020.0174.75
4.4.60.0050.0184.75
4.4.50.0050.0174.77
4.4.40.0060.0244.71
4.4.30.0040.0144.76
4.4.20.0030.0154.85
4.4.10.0060.0144.85
4.4.00.0020.0314.76
4.3.110.0030.0184.66
4.3.100.0040.0174.66
4.3.90.0060.0114.64
4.3.80.0030.0254.58
4.3.70.0020.0194.63
4.3.60.0040.0144.62
4.3.50.0030.0164.63
4.3.40.0030.0244.54
4.3.30.0010.0173.29
4.3.20.0020.0163.27
4.3.10.0020.0163.23
4.3.00.0170.01715.27

preferences:
39.71 ms | 401 KiB | 5 Q