3v4l.org

run code in 300+ PHP versions simultaneously
<?php class x { public $y; public function __construct() { $x =& $this; $x = new stdClass; var_dump($this); } } var_dump(new x);

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)
8.3.70.0060.00916.50
8.3.60.0140.00316.88
8.3.50.0250.00617.43
8.3.40.0080.00818.84
8.3.30.0150.00018.89
8.3.20.0060.00318.69
8.3.10.0080.00020.26
8.3.00.0040.00419.25
8.2.180.0070.01016.38
8.2.170.0110.00322.96
8.2.160.0070.01320.44
8.2.150.0150.00024.18
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0070.00320.82
8.2.110.0030.00720.98
8.2.100.0030.00717.72
8.2.90.0060.00319.31
8.2.80.0000.00719.38
8.2.70.0040.00417.50
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0080.00018.09
8.2.30.0000.01118.08
8.2.20.0030.00617.56
8.2.10.0060.00317.60
8.2.00.0060.00317.68
8.1.280.0070.00725.92
8.1.270.0100.00724.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.30
8.1.230.0000.01120.80
8.1.220.0040.00417.74
8.1.210.0110.00018.85
8.1.200.0030.00617.23
8.1.190.0050.00517.30
8.1.180.0070.00418.10
8.1.170.0040.00418.86
8.1.160.0070.00018.82
8.1.150.0040.00418.56
8.1.140.0000.00717.38
8.1.130.0000.00717.92
8.1.120.0000.00717.27
8.1.110.0100.00017.34
8.1.100.0070.00017.48
8.1.90.0000.00717.36
8.1.80.0030.00517.36
8.1.70.0000.00717.35
8.1.60.0040.00417.58
8.1.50.0000.00817.43
8.1.40.0040.00417.55
8.1.30.0000.00817.64
8.1.20.0040.00417.64
8.1.10.0000.00717.52
8.1.00.0000.00717.44
8.0.300.0040.00419.74
8.0.290.0060.00316.63
8.0.280.0030.00318.29
8.0.270.0070.00017.11
8.0.260.0030.00316.79
8.0.250.0040.00416.86
8.0.240.0000.00716.91
8.0.230.0000.00716.85
8.0.220.0000.00616.73
8.0.210.0070.00016.73
8.0.200.0000.00716.89
8.0.190.0040.00416.76
8.0.180.0000.00816.75
8.0.170.0000.00816.83
8.0.160.0080.00016.73
8.0.150.0090.00016.71
8.0.140.0030.00616.82
8.0.130.0060.00013.19
8.0.120.0000.00716.70
8.0.110.0000.00816.87
8.0.100.0050.00216.72
8.0.90.0040.00416.70
8.0.80.0080.00616.75
8.0.70.0030.00616.86
8.0.60.0040.00416.79
8.0.50.0000.00716.81
8.0.30.0140.00417.02
8.0.20.0070.01217.13
8.0.10.0050.00516.79
8.0.00.0080.01116.77
7.4.330.0050.00012.93
7.4.320.0000.00616.48
7.4.300.0060.00016.36
7.4.290.0030.00316.61
7.4.280.0050.00316.50
7.4.270.0070.00016.50
7.4.260.0060.00013.26
7.4.250.0040.00416.57
7.4.240.0000.00716.47
7.4.230.0030.00316.50
7.4.220.0120.00616.65
7.4.210.0080.00916.54
7.4.200.0030.00316.68
7.4.190.0000.00716.38
7.4.160.0080.00816.50
7.4.150.0060.01316.22
7.4.140.0050.01216.48
7.4.130.0160.00516.46
7.4.120.0050.01116.41
7.4.110.0090.00916.62
7.4.100.0060.00916.37
7.4.90.0150.00316.31
7.4.80.0170.00319.39
7.4.70.0130.00316.46
7.4.60.0030.01316.24
7.4.50.0080.00416.13
7.4.40.0000.01516.47
7.4.30.0040.01116.44
7.4.00.0060.00914.66
7.3.330.0030.00313.23
7.3.320.0000.00713.29
7.3.310.0000.00816.24
7.3.300.0000.00716.16
7.3.290.0170.00416.24
7.3.280.0050.00916.24
7.3.270.0150.00316.47
7.3.260.0110.00616.24
7.3.250.0080.00916.46
7.3.240.0130.00316.21
7.3.230.0130.00516.43
7.3.210.0060.01116.19
7.3.200.0060.00916.18
7.3.190.0090.01216.52
7.3.180.0130.00316.18
7.3.170.0150.00316.24
7.3.160.0030.01416.12
7.3.120.0090.00614.54
7.2.330.0030.02116.70
7.2.320.0160.00716.65
7.2.310.0100.01316.69
7.2.300.0060.01616.25
7.2.290.0170.00016.64
7.2.60.0090.00616.69
7.2.00.0030.00719.05
7.1.200.0030.00915.61
7.1.100.0070.00717.91
7.1.70.0000.00717.16
7.1.60.0070.01419.40
7.1.50.0000.01116.96
7.1.00.0070.04322.28
7.0.200.0070.00016.68
7.0.140.0070.07022.08
7.0.60.0030.08719.78
7.0.50.0100.08017.85
7.0.40.0030.06020.30
7.0.30.0200.04020.13
7.0.20.0130.04320.30
7.0.10.0230.09020.32
7.0.00.0130.03720.23
5.6.280.0100.06721.10
5.6.210.0070.07020.70
5.6.200.0100.08318.16
5.6.190.0100.06720.76
5.6.180.0170.04320.58
5.6.170.0400.07020.50
5.6.160.0130.07020.52
5.6.150.0130.07318.21
5.6.140.0100.03318.17
5.6.130.0000.04718.18
5.6.120.0130.05021.02
5.6.110.0070.08021.04
5.6.100.0100.08021.11
5.6.90.0130.07721.10
5.6.80.0170.06720.36
5.6.70.0130.04320.37
5.5.350.0170.03720.52
5.5.340.0130.08018.02
5.5.330.0100.08320.29
5.5.320.0170.04320.30
5.5.310.0330.07720.29
5.5.300.0070.08017.94
5.5.290.0070.05017.95
5.5.280.0070.08320.88
5.5.270.0170.06720.78
5.5.260.0070.09320.76
5.5.250.0100.07720.77
5.5.240.0000.05720.27
5.4.450.0230.05019.41
5.4.440.0270.07019.16
5.4.430.0300.06719.31
5.4.420.0200.04019.13
5.4.410.0200.03319.41
5.4.400.0130.04019.22
5.4.390.0170.04019.31
5.4.380.0230.07319.08
5.4.370.0230.05719.22
5.4.360.0200.07319.14
5.4.350.0170.05719.00
5.4.340.0200.04319.09
5.4.320.0170.04319.20
5.4.310.0200.03719.20
5.4.300.0200.03719.05
5.4.290.0230.03719.05
5.4.280.0200.03719.33
5.4.270.0200.06019.28
5.4.260.0170.04019.23
5.4.250.0300.06719.21
5.4.240.0300.06319.11
5.4.230.0370.06319.11
5.4.220.0200.06319.16
5.4.210.0130.05019.05
5.4.200.0230.06318.94
5.4.190.0230.04319.21
5.4.180.0270.05319.19
5.4.170.0200.05019.30
5.4.160.0230.03718.97
5.4.150.0270.04718.99
5.4.140.0330.06716.49
5.4.130.0200.05016.49
5.4.120.0230.04316.49
5.4.110.0230.04016.56
5.4.100.0200.04716.46
5.4.90.0270.06316.21
5.4.80.0170.05016.54
5.4.70.0270.06316.35
5.4.60.0230.05716.43
5.4.50.0170.04316.51
5.4.40.0170.06316.50
5.4.30.0170.06016.16
5.4.20.0200.04316.55
5.4.10.0200.03716.53
5.4.00.0300.06315.87
5.3.290.0170.04014.71
5.3.280.0370.05314.56
5.3.270.0330.06014.57
5.3.260.0230.05014.74
5.3.250.0170.05314.50
5.3.240.0270.04314.57
5.3.230.0270.06314.50
5.3.220.0270.07314.55
5.3.210.0300.04714.70
5.3.200.0330.06714.53
5.3.190.0270.07314.64
5.3.180.0270.07714.61
5.3.170.0230.07314.57
5.3.160.0330.06714.64
5.3.150.0400.03714.46
5.3.140.0270.07314.67
5.3.130.0270.04714.54
5.3.120.0330.06314.63
5.3.110.0430.06014.77
5.3.100.0230.05713.96
5.3.90.0300.06714.10
5.3.80.0300.03714.13
5.3.70.0370.02314.08
5.3.60.0270.07013.91
5.3.50.0330.03713.95
5.3.40.0270.04313.95
5.3.30.0230.04713.81
5.3.20.0300.06713.80
5.3.10.0270.06313.67
5.3.00.0230.06313.57
5.2.170.0170.05012.47
5.2.160.0200.03312.47
5.2.150.0200.03012.47
5.2.140.0170.06312.47
5.2.130.0200.05712.47
5.2.120.0130.05712.47
5.2.110.0170.03712.47
5.2.100.0170.06012.47
5.2.90.0170.03012.47
5.2.80.0170.05712.47
5.2.70.0230.05312.47
5.2.60.0200.04312.47
5.2.50.0230.05712.47
5.2.40.0130.05712.47
5.2.30.0230.05712.47
5.2.20.0130.04012.47
5.2.10.0170.05012.47
5.2.00.0200.05712.47
5.1.60.0170.04012.47
5.1.50.0170.03312.47
5.1.40.0200.02312.47
5.1.30.0200.04712.47
5.1.20.0230.02712.47
5.1.10.0230.05012.47
5.1.00.0170.03712.47
5.0.50.0100.04712.47
5.0.40.0070.03312.47
5.0.30.0130.03312.47
5.0.20.0100.04712.47
5.0.10.0130.02312.47
5.0.00.0070.03712.47
4.4.90.0070.02312.47
4.4.80.0070.01712.47
4.4.70.0070.02012.47
4.4.60.0100.02712.47
4.4.50.0100.01312.47
4.4.40.0070.03312.47
4.4.30.0030.02012.47
4.4.20.0130.02012.47
4.4.10.0070.02312.47
4.4.00.0070.05712.47
4.3.110.0130.02712.47
4.3.100.0100.02012.47
4.3.90.0100.01712.47
4.3.80.0100.04012.47
4.3.70.0030.02312.47
4.3.60.0070.03712.47
4.3.50.0070.02312.47
4.3.40.0100.04712.47
4.3.30.0030.02012.47
4.3.20.0070.03312.47
4.3.10.0030.02012.47
4.3.00.0030.02712.47

preferences:
47.91 ms | 401 KiB | 5 Q