3v4l.org

run code in 300+ PHP versions simultaneously
<?php class x { 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)
8.3.60.0130.00718.55
8.3.50.0100.00822.00
8.3.40.0150.00618.70
8.3.30.0030.01018.95
8.3.20.0050.00220.21
8.3.10.0080.00023.64
8.3.00.0030.00522.40
8.2.180.0190.00316.38
8.2.170.0100.01022.96
8.2.160.0130.00322.08
8.2.150.0110.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0110.00417.50
8.2.110.0060.00320.32
8.2.100.0040.00817.78
8.2.90.0040.00419.01
8.2.80.0090.00017.97
8.2.70.0080.00017.50
8.2.60.0050.00317.80
8.2.50.0040.00418.07
8.2.40.0070.00018.03
8.2.30.0000.01017.81
8.2.20.0000.00717.63
8.2.10.0040.00419.46
8.2.00.0070.00017.70
8.1.280.0060.01225.92
8.1.270.0000.00823.71
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0030.00623.92
8.1.230.0070.00422.11
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0060.00317.23
8.1.190.0040.00417.30
8.1.180.0080.00018.10
8.1.170.0040.00418.51
8.1.160.0000.00721.91
8.1.150.0000.00918.57
8.1.140.0040.00417.30
8.1.130.0030.00317.75
8.1.120.0040.00417.41
8.1.110.0050.00217.27
8.1.100.0000.00717.38
8.1.90.0000.00717.41
8.1.80.0040.00417.39
8.1.70.0070.00017.38
8.1.60.0060.00317.47
8.1.50.0050.00317.51
8.1.40.0050.00317.57
8.1.30.0040.00417.52
8.1.20.0050.00317.70
8.1.10.0050.00317.50
8.1.00.0000.00817.45
8.0.300.0080.00018.77
8.0.290.0000.00717.05
8.0.280.0030.00318.29
8.0.270.0030.00317.19
8.0.260.0000.00616.68
8.0.250.0000.00716.88
8.0.240.0070.00016.79
8.0.230.0050.00316.82
8.0.220.0030.00316.80
8.0.210.0000.00716.82
8.0.200.0060.00016.88
8.0.190.0000.00816.94
8.0.180.0050.00216.88
8.0.170.0030.00516.83
8.0.160.0000.00816.69
8.0.150.0070.00016.79
8.0.140.0030.00316.80
8.0.130.0000.00813.25
8.0.120.0070.00016.82
8.0.110.0040.00416.73
8.0.100.0030.00516.82
8.0.90.0040.00416.94
8.0.80.0060.01516.88
8.0.70.0040.00416.68
8.0.60.0040.00416.81
8.0.50.0000.00716.79
8.0.30.0080.01317.05
8.0.20.0080.01117.40
8.0.10.0000.00817.01
8.0.00.0060.01216.59
7.4.330.0050.00015.02
7.4.320.0030.00316.45
7.4.300.0070.00016.36
7.4.290.0030.00316.49
7.4.280.0040.00416.49
7.4.270.0000.00716.59
7.4.260.0030.00316.60
7.4.250.0000.00716.52
7.4.240.0040.00416.50
7.4.230.0040.00416.50
7.4.220.0110.00616.53
7.4.210.0090.00616.52
7.4.200.0030.00316.67
7.4.190.0040.00416.76
7.4.160.0080.00816.24
7.4.150.0080.01217.40
7.4.140.0120.00717.86
7.4.130.0110.00616.61
7.4.120.0110.00616.43
7.4.110.0130.00316.32
7.4.100.0090.00916.31
7.4.90.0100.00716.36
7.4.80.0090.01016.44
7.4.70.0110.00716.56
7.4.60.0070.01016.36
7.4.50.0000.00916.49
7.4.40.0000.01222.77
7.4.30.0080.00816.55
7.4.00.0120.00614.84
7.3.330.0000.00513.10
7.3.320.0030.00313.06
7.3.310.0040.00416.27
7.3.300.0000.00716.11
7.3.290.0070.01316.25
7.3.280.0080.00916.23
7.3.270.0060.01217.40
7.3.260.0000.01916.36
7.3.250.0030.01316.48
7.3.240.0070.01716.43
7.3.230.0040.01516.46
7.3.210.0100.00716.27
7.3.200.0120.00919.39
7.3.190.0080.00916.34
7.3.180.0080.00816.25
7.3.170.0060.00916.27
7.3.160.0090.00616.35
7.3.120.0100.00714.94
7.2.330.0100.00716.27
7.2.320.0070.01016.41
7.2.310.0120.00316.29
7.2.300.0090.00616.71
7.2.290.0070.01016.43
7.2.60.0070.00716.45
7.2.00.0030.00619.44
7.1.200.0000.00615.61
7.1.100.0030.01018.29
7.1.70.0090.00317.18
7.1.60.0140.01019.24
7.1.50.0120.00916.86
7.1.00.0030.07722.28
7.0.200.0060.00616.65
7.0.140.0070.07022.09
7.0.100.0200.08320.16
7.0.90.0030.04319.85
7.0.80.0070.04319.86
7.0.70.0070.07719.98
7.0.60.0000.04719.91
7.0.50.0230.04720.18
7.0.40.0130.07020.00
7.0.30.0100.08320.07
7.0.20.0030.07320.06
7.0.10.0030.04320.03
7.0.00.0070.07720.13
5.6.280.0030.07321.04
5.6.250.0070.07320.57
5.6.240.0100.04720.64
5.6.230.0100.07720.67
5.6.220.0070.05020.68
5.6.210.0070.04720.45
5.6.200.0170.07321.12
5.6.190.0030.04321.07
5.6.180.0070.06721.04
5.6.170.0170.07021.17
5.6.160.0200.07320.93
5.6.150.0030.07721.07
5.6.140.0170.07021.07
5.6.130.0070.04021.01
5.6.120.0070.08721.00
5.6.110.0070.04321.04
5.6.100.0070.09021.04
5.6.90.0030.09021.15
5.6.80.0030.06720.38
5.6.70.0200.06720.33
5.6.60.0070.08020.41
5.6.50.0030.08320.41
5.6.40.0070.08320.48
5.6.30.0070.07020.36
5.6.20.0070.07720.29
5.6.10.0030.07720.39
5.6.00.0070.08020.41
5.5.380.0030.08720.38
5.5.370.0070.06320.34
5.5.360.0130.04020.33
5.5.350.0000.08720.30
5.5.340.0070.08720.80
5.5.330.0130.07020.76
5.5.320.0070.08720.86
5.5.310.0030.05020.92
5.5.300.0070.07320.77
5.5.290.0170.07020.83
5.5.280.0030.06320.86
5.5.270.0000.05720.76
5.5.260.0070.07720.78
5.5.250.0000.07020.54
5.5.240.0000.08720.22
5.5.230.0000.05320.14
5.5.220.0100.07020.16
5.5.210.0000.06320.28
5.5.200.0130.05320.18
5.5.190.0070.08320.28
5.5.180.0100.07020.15
5.5.160.0030.03720.24
5.5.150.0100.07020.23
5.5.140.0030.03720.18
5.5.130.0100.07020.26
5.5.120.0000.04019.98
5.5.110.0130.06720.20
5.5.100.0070.06319.96
5.5.90.0030.07320.09
5.5.80.0030.08320.15
5.5.70.0030.08319.92
5.5.60.0100.04320.10
5.5.50.0070.05720.09
5.5.40.0070.08320.05
5.5.30.0070.04020.05
5.5.20.0100.07019.94
5.5.10.0130.03020.05
5.5.00.0100.03720.03
5.4.450.0070.07319.56
5.4.440.0070.07019.35
5.4.430.0070.08019.27
5.4.420.0070.05019.55
5.4.410.0100.06019.40
5.4.400.0070.05319.24
5.4.390.0070.07719.16
5.4.380.0070.03319.03
5.4.370.0000.07318.87
5.4.360.0070.07019.18
5.4.350.0030.05719.05
5.4.340.0100.03718.82
5.4.320.0070.07718.95
5.4.310.0070.03319.05
5.4.300.0070.05719.23
5.4.290.0070.08018.96
5.4.280.0030.07719.02
5.4.270.0030.07318.90
5.4.260.0070.05319.23
5.4.250.0100.07319.04
5.4.240.0070.08019.02
5.4.230.0070.06718.87
5.4.220.0030.07719.08
5.4.210.0130.02719.20
5.4.200.0030.07718.89
5.4.190.0030.07718.94
5.4.180.0030.05019.17
5.4.170.0100.06719.11
5.4.160.0130.06318.90
5.4.150.0070.07719.10
5.4.140.0070.03016.42
5.4.130.0030.06016.18
5.4.120.0070.06316.18
5.4.110.0100.06716.36
5.4.100.0070.03016.39
5.4.90.0000.03716.39
5.4.80.0070.05016.45
5.4.70.0030.03316.41
5.4.60.0070.07016.43
5.4.50.0170.02716.33
5.4.40.0100.07016.36
5.4.30.0100.03316.25
5.4.20.0030.04016.33
5.4.10.0030.07316.43
5.4.00.0030.06715.74
5.3.290.0030.04014.66
5.3.280.0000.04714.51
5.3.270.0000.05014.53
5.3.260.0000.06014.69
5.3.250.0030.04314.55
5.3.240.0000.04314.53
5.3.230.0030.03714.51
5.3.220.0000.04314.58
5.3.210.0030.08314.66
5.3.200.0030.03314.50
5.3.190.0170.06714.61
5.3.180.0030.07314.61
5.3.170.0030.08714.48
5.3.160.0070.03014.64
5.3.150.0030.04714.56
5.3.140.0030.05314.57
5.3.130.0100.07014.54
5.3.120.0130.02714.46
5.3.110.0130.07014.47
5.3.100.0000.03714.13
5.3.90.0070.05314.10
5.3.80.0030.06014.16
5.3.70.0070.04014.03
5.3.60.0070.06013.89
5.3.50.0000.04314.06
5.3.40.0030.03314.04
5.3.30.0070.06713.83
5.3.20.0030.03713.77
5.3.10.0070.05313.71
5.3.00.0030.05313.78
5.2.170.0000.03011.28
5.2.160.0070.05311.29
5.2.150.0000.06311.21
5.2.140.0070.04011.17
5.2.130.0030.06011.18
5.2.120.0000.06311.24
5.2.110.0000.05311.17
5.2.100.0130.04311.20
5.2.90.0030.05711.17
5.2.80.0000.03011.20
5.2.70.0000.03011.17
5.2.60.0030.05311.17
5.2.50.0070.06011.17
5.2.40.0070.05011.17
5.2.30.0030.05711.17
5.2.20.0070.04711.17
5.2.10.0070.05311.17
5.2.00.0070.05311.17
5.1.60.0070.04711.17
5.1.50.0100.04711.17
5.1.40.0030.05311.17
5.1.30.0030.05311.17
5.1.20.0070.05011.17
5.1.10.0030.03711.17
5.1.00.0070.03711.17
5.0.50.0030.04311.17
5.0.40.0030.02311.17
5.0.30.0000.06011.17
5.0.20.0070.04011.17
5.0.10.0070.03311.17
5.0.00.0000.06311.17
4.4.90.0000.03711.17
4.4.80.0030.01311.17
4.4.70.0000.03711.17
4.4.60.0000.03311.17
4.4.50.0070.02311.17
4.4.40.0000.04311.17
4.4.30.0000.02711.17
4.4.20.0030.02311.17
4.4.10.0070.01711.17
4.4.00.0030.05711.17
4.3.110.0030.02711.17
4.3.100.0030.02711.17
4.3.90.0030.03311.17
4.3.80.0030.03011.17
4.3.70.0070.02311.17
4.3.60.0130.01311.17
4.3.50.0070.03311.17
4.3.40.0070.04711.17
4.3.30.0030.02011.17
4.3.20.0070.02711.17
4.3.10.0000.02011.17
4.3.00.0000.01711.17

preferences:
49.68 ms | 400 KiB | 5 Q