3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C { private $x = 'x'; function __get($key) {return $this->x;} function __isset($key) {return TRUE;} } $c = new C; var_export(empty($c->k));

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)
8.3.70.0190.00316.38
8.3.60.0090.00616.75
8.3.50.0130.00721.08
8.3.40.0120.00318.73
8.3.30.0100.00318.91
8.3.20.0040.00420.33
8.3.10.0080.00021.84
8.3.00.0030.00619.13
8.2.180.0070.01016.75
8.2.170.0140.00722.96
8.2.160.0100.00320.35
8.2.150.0110.00724.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00222.24
8.2.110.0090.00022.20
8.2.100.0060.00618.09
8.2.90.0000.00819.09
8.2.80.0040.00417.97
8.2.70.0060.00317.38
8.2.60.0000.00817.91
8.2.50.0030.00518.07
8.2.40.0040.00419.81
8.2.30.0040.00417.99
8.2.20.0040.00417.63
8.2.10.0040.00418.04
8.2.00.0080.00017.62
8.1.280.0070.00725.92
8.1.270.0150.00322.24
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00320.88
8.1.230.0130.00017.76
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0080.00017.35
8.1.190.0000.00817.35
8.1.180.0030.00518.10
8.1.170.0060.00318.59
8.1.160.0000.00721.87
8.1.150.0040.00418.75
8.1.140.0040.00417.41
8.1.130.0030.00317.30
8.1.120.0000.00717.47
8.1.110.0030.00517.29
8.1.100.0000.00817.37
8.1.90.0000.00717.41
8.1.80.0040.00417.43
8.1.70.0030.00317.32
8.1.60.0000.00817.56
8.1.50.0080.00017.43
8.1.40.0090.00017.52
8.1.30.0060.00317.63
8.1.20.0030.00517.54
8.1.10.0000.00717.58
8.1.00.0000.00717.50
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.29
8.0.270.0030.00317.28
8.0.260.0030.00316.74
8.0.250.0030.00316.90
8.0.240.0050.00316.96
8.0.230.0000.00716.93
8.0.220.0000.00716.84
8.0.210.0030.00316.86
8.0.200.0030.00516.90
8.0.190.0050.00316.77
8.0.180.0040.00416.71
8.0.170.0080.00016.76
8.0.160.0030.00616.75
8.0.150.0060.00316.80
8.0.140.0080.00016.70
8.0.130.0030.00313.27
8.0.120.0000.00716.84
8.0.110.0050.00216.83
8.0.100.0000.00716.88
8.0.90.0000.00716.84
8.0.80.0060.00916.81
8.0.70.0040.00416.88
8.0.60.0000.00816.81
8.0.50.0040.00416.73
8.0.30.0090.01017.04
8.0.20.0140.00517.40
8.0.10.0050.00316.75
8.0.00.0130.00816.73
7.4.330.0050.00015.00
7.4.320.0000.00716.49
7.4.300.0000.00616.52
7.4.290.0000.00916.50
7.4.280.0040.00416.64
7.4.270.0000.00716.52
7.4.260.0070.00016.45
7.4.250.0070.00016.43
7.4.240.0070.00016.52
7.4.230.0070.00016.58
7.4.220.0030.01616.64
7.4.210.0090.00916.45
7.4.200.0000.00816.68
7.4.160.0120.00416.50
7.4.150.0130.00317.40
7.4.140.0100.00917.86
7.4.130.0090.00916.38
7.4.120.0080.00916.44
7.4.110.0060.01216.63
7.4.100.0100.00716.66
7.4.90.0130.00316.28
7.4.80.0120.00619.39
7.4.70.0000.01916.51
7.4.60.0090.00916.48
7.4.50.0000.00916.53
7.4.40.0100.00716.48
7.4.30.0030.01716.60
7.4.00.0130.00015.05
7.3.330.0000.00513.31
7.3.320.0040.00413.27
7.3.310.0050.00316.30
7.3.300.0030.00316.07
7.3.290.0060.01416.26
7.3.280.0070.00916.21
7.3.270.0120.00617.40
7.3.260.0130.00416.30
7.3.250.0080.01016.13
7.3.240.0070.01116.12
7.3.230.0090.01216.39
7.3.210.0040.01416.15
7.3.200.0190.00319.39
7.3.190.0100.00616.36
7.3.180.0110.00516.18
7.3.170.0110.00516.43
7.3.160.0080.00816.17
7.2.330.0070.01016.49
7.2.320.0080.01116.39
7.2.310.0070.01416.44
7.2.300.0110.00716.69
7.2.290.0160.00616.35
7.2.00.0100.00319.24
7.1.100.0060.00917.67
7.1.70.0000.00716.98
7.1.60.0070.01519.32
7.1.50.0100.01616.95
7.1.00.0000.08022.44
7.0.200.0000.01016.37
7.0.140.0030.07321.97
7.0.60.0000.04319.97
7.0.50.0070.08017.94
7.0.40.0100.04320.20
7.0.30.0230.03320.17
7.0.20.0230.05020.24
7.0.10.0030.08320.07
7.0.00.0070.06320.33
5.6.280.0070.07020.90
5.6.210.0030.07020.54
5.6.200.0070.08718.19
5.6.190.0070.04020.61
5.6.180.0230.04320.46
5.6.170.0270.07320.55
5.6.160.0070.08320.50
5.6.150.0070.06018.14
5.6.140.0130.06718.30
5.6.130.0100.05318.20
5.6.120.0130.07321.06
5.6.110.0070.05321.14
5.6.100.0170.06021.02
5.6.90.0100.05721.14
5.6.80.0100.08020.38
5.5.350.0200.08320.50
5.5.340.0070.06317.98
5.5.330.0030.04320.38
5.5.320.0430.07020.35
5.5.310.0230.05020.26
5.5.300.0170.07017.96
5.5.290.0100.03718.02
5.5.280.0170.07320.66
5.5.270.0070.07020.78
5.5.260.0070.07720.88
5.5.250.0070.03720.56
5.5.240.0000.08020.16
5.4.450.0270.04319.64
5.4.440.0300.07319.45
5.4.430.0200.05019.54
5.4.420.0270.04319.31
5.4.410.0170.04319.25
5.4.400.0170.04319.09
5.4.390.0330.04719.09
5.4.380.0230.03719.24
5.4.370.0270.03319.18
5.4.360.0370.03719.16
5.4.350.0300.03019.01
5.4.340.0270.03319.09
5.4.320.0270.03318.95
5.4.310.0200.03718.87
5.4.300.0200.04019.34
5.4.290.0200.03719.19
5.4.280.0230.03719.08
5.4.270.0300.07019.09
5.4.260.0230.04019.21
5.4.250.0230.04718.93
5.4.240.0230.04718.97
5.4.230.0370.06719.14
5.4.220.0330.03019.16
5.4.210.0300.03018.94
5.4.200.0330.04718.99
5.4.190.0200.04018.86
5.4.180.0370.04719.12
5.4.170.0170.04319.21
5.4.160.0270.03719.17
5.4.150.0300.06319.15
5.4.140.0270.03316.41
5.4.130.0400.03016.34
5.4.120.0230.03316.49
5.4.110.0230.03716.54
5.4.100.0230.03316.45
5.4.90.0200.03716.54
5.4.80.0170.04016.54
5.4.70.0300.05716.52
5.4.60.0370.05716.56
5.4.50.0230.04316.42
5.4.40.0300.03716.43
5.4.30.0330.03316.38
5.4.20.0270.03016.43
5.4.10.0330.03716.42
5.4.00.0270.05015.82
5.3.290.0200.05014.75
5.3.280.0370.06714.61
5.3.270.0300.05714.52
5.3.260.0300.05014.51
5.3.250.0230.04314.57
5.3.240.0300.06014.70
5.3.230.0430.06014.52
5.3.220.0300.06714.68
5.3.210.0330.06714.73
5.3.200.0300.04314.43
5.3.190.0370.06714.79
5.3.180.0330.05314.64
5.3.170.0200.04714.57
5.3.160.0330.06314.48
5.3.150.0270.06714.57
5.3.140.0430.04014.46
5.3.130.0400.05714.52
5.3.120.0300.04014.48
5.3.110.0330.07314.42
5.3.100.0200.04314.35
5.3.90.0430.05014.35
5.3.80.0270.03714.35
5.3.70.0270.06314.35
5.3.60.0370.06014.35
5.3.50.0230.04014.35
5.3.40.0270.07314.35
5.3.30.0300.07014.35
5.3.20.0400.06314.35
5.3.10.0370.06714.35
5.3.00.0330.06714.35
5.2.170.0200.03314.35
5.2.160.0300.05314.35
5.2.150.0300.04314.35
5.2.140.0300.03314.35
5.2.130.0230.05014.35
5.2.120.0300.05714.35
5.2.110.0300.03014.35
5.2.100.0170.03014.35
5.2.90.0170.03014.35
5.2.80.0230.05714.35
5.2.70.0200.02714.35
5.2.60.0170.03014.35
5.2.50.0170.03014.35
5.2.40.0300.02014.35
5.2.30.0170.02714.35
5.2.20.0130.03014.35
5.2.10.0130.03014.35
5.2.00.0200.02314.35
5.1.60.0130.02314.35
5.1.50.0130.02714.35
5.1.40.0130.02714.35
5.1.30.0230.02314.35
5.1.20.0130.02714.35
5.1.10.0130.02714.35
5.1.00.0130.02714.35
5.0.50.0130.01714.35
5.0.40.0070.02014.35
5.0.30.0070.03314.35
5.0.20.0100.01714.35
5.0.10.0100.03714.35
5.0.00.0070.03014.35
4.4.90.0100.01714.35
4.4.80.0070.01714.35
4.4.70.0030.01714.35
4.4.60.0000.02014.35
4.4.50.0070.02014.35
4.4.40.0100.02014.35
4.4.30.0070.01314.35
4.4.20.0100.01014.35
4.4.10.0100.01714.35
4.4.00.0070.02714.35
4.3.110.0070.02014.35
4.3.100.0100.01314.35
4.3.90.0100.01014.35
4.3.80.0070.02314.35
4.3.70.0130.01314.35
4.3.60.0030.02014.35
4.3.50.0070.02014.35
4.3.40.0070.02314.35
4.3.30.0030.01314.35
4.3.20.0030.01714.35
4.3.10.0000.02014.35
4.3.00.0030.01314.35

preferences:
47.85 ms | 401 KiB | 5 Q