3v4l.org

run code in 300+ PHP versions simultaneously
<?php class P { static $a=9; function __get($var) { return self::$var; } function __isset($var) { return true; } } $P=new P; var_dump(isset($P->$az));

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)
8.3.40.0070.01118.61
8.3.30.0070.00720.17
8.3.20.0040.00420.16
8.3.10.0060.00321.04
8.3.00.0050.00322.43
8.2.170.0150.00022.96
8.2.160.0100.00320.39
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0070.00020.62
8.2.110.0060.00319.18
8.2.100.0040.00817.84
8.2.90.0000.00719.23
8.2.80.0000.00817.97
8.2.70.0060.00317.61
8.2.60.0040.00417.93
8.2.50.0050.00318.07
8.2.40.0090.00018.18
8.2.30.0000.00719.53
8.2.20.0030.00617.67
8.2.10.0000.00717.66
8.2.00.0070.00317.48
8.1.270.0040.00423.99
8.1.260.0050.00226.35
8.1.250.0070.00028.09
8.1.240.0000.00923.75
8.1.230.0070.00420.91
8.1.220.0080.00018.77
8.1.210.0090.00318.97
8.1.200.0050.00517.35
8.1.190.0080.00017.30
8.1.180.0070.00418.10
8.1.170.0040.00418.46
8.1.160.0030.00618.88
8.1.150.0040.00418.63
8.1.140.0040.00417.45
8.1.130.0000.00817.80
8.1.120.0000.00717.46
8.1.110.0040.00417.45
8.1.100.0040.00417.34
8.1.90.0030.00517.42
8.1.80.0040.00417.51
8.1.70.0030.00317.36
8.1.60.0030.00617.57
8.1.50.0070.00017.54
8.1.40.0040.00417.54
8.1.30.0040.00417.61
8.1.20.0000.00817.52
8.1.10.0020.00517.46
8.1.00.0070.00017.51
8.0.300.0030.00720.04
8.0.290.0040.00417.04
8.0.280.0000.00718.48
8.0.270.0030.00317.25
8.0.260.0000.00716.92
8.0.250.0070.00016.88
8.0.240.0080.00017.05
8.0.230.0000.00716.98
8.0.220.0040.00417.02
8.0.210.0070.00016.97
8.0.200.0040.00416.97
8.0.190.0030.00517.00
8.0.180.0000.00716.96
8.0.170.0030.00616.86
8.0.160.0000.00716.97
8.0.150.0000.00716.92
8.0.140.0070.00016.83
8.0.130.0030.00313.45
8.0.120.0030.00516.81
8.0.110.0050.00316.93
8.0.100.0050.00216.98
8.0.90.0000.00816.99
8.0.80.0110.00416.92
8.0.70.0020.00516.84
8.0.60.0040.00417.01
8.0.50.0000.00716.93
8.0.30.0100.01117.04
8.0.20.0160.00417.40
8.0.10.0050.00317.07
8.0.00.0170.01516.72
7.4.330.0050.00016.70
7.4.320.0030.00316.42
7.4.300.0000.00716.64
7.4.290.0070.00016.48
7.4.280.0060.00016.45
7.4.270.0030.00316.60
7.4.260.0030.00313.29
7.4.250.0040.00416.51
7.4.240.0000.00716.54
7.4.230.0030.00316.48
7.4.220.0090.00916.37
7.4.210.0090.00516.61
7.4.200.0070.00016.62
7.4.190.0030.00316.69
7.4.160.0060.00916.34
7.4.150.0030.01517.40
7.4.140.0120.00517.86
7.4.130.0080.00816.55
7.4.120.0080.01216.44
7.4.110.0080.00816.38
7.4.100.0150.00316.54
7.4.90.0110.00616.39
7.4.80.0060.01319.39
7.4.70.0080.00816.48
7.4.60.0070.01016.45
7.4.50.0000.00716.44
7.4.40.0060.00922.77
7.4.30.0070.01016.57
7.4.00.0070.01014.82
7.3.330.0000.00513.32
7.3.320.0060.00013.35
7.3.310.0030.00516.41
7.3.300.0060.00016.25
7.3.290.0120.00316.29
7.3.280.0060.01116.38
7.3.270.0120.00617.40
7.3.260.0100.00818.24
7.3.250.0090.00816.27
7.3.240.0030.01316.46
7.3.230.0140.00316.49
7.3.210.0060.01016.43
7.3.200.0070.01019.39
7.3.190.0140.00316.46
7.3.180.0100.00716.23
7.3.170.0150.00616.33
7.3.160.0070.01016.37
7.3.120.0040.01114.52
7.2.330.0170.00016.42
7.2.320.0100.00716.37
7.2.310.0070.01016.61
7.2.300.0180.00016.47
7.2.290.0160.00016.55
7.2.00.0040.01418.80
7.1.100.0130.00618.09
7.1.70.0040.00717.01
7.1.60.0090.01519.17
7.1.50.0090.00316.79
7.1.00.0030.04022.54
7.0.200.0030.00716.58
7.0.140.0070.07022.21
7.0.60.0030.04019.95
7.0.50.0070.06717.73
7.0.40.0130.04020.10
7.0.30.0500.05720.27
7.0.20.0100.05320.36
7.0.10.0300.05720.19
7.0.00.0030.07320.30
5.6.280.0100.06320.82
5.6.210.0130.06720.56
5.6.200.0070.03718.29
5.6.190.0070.04320.55
5.6.180.0030.04320.62
5.6.170.0200.03720.50
5.6.160.0130.06020.54
5.6.150.0070.08018.18
5.6.140.0030.04018.15
5.6.130.0030.05718.25
5.6.120.0070.08720.99
5.6.110.0030.07321.04
5.6.100.0130.08021.04
5.6.90.0070.08721.10
5.6.80.0130.06020.44
5.6.70.0130.03720.50
5.5.350.0400.05720.47
5.5.340.0070.03718.04
5.5.330.0130.06720.19
5.5.320.0000.04320.32
5.5.310.0270.08020.24
5.5.300.0100.07017.98
5.5.290.0030.04017.92
5.5.280.0130.07320.88
5.5.270.0130.04020.98
5.5.260.0130.06720.98
5.5.250.0200.06720.72
5.5.240.0070.03720.15
5.4.450.0400.07319.52
5.4.440.0430.07019.40
5.4.430.0270.05319.40
5.4.420.0170.07019.51
5.4.410.0270.06319.14
5.4.400.0200.04318.95
5.4.390.0300.05319.08
5.4.380.0470.06719.15
5.4.370.0230.07019.21
5.4.360.0400.06719.22
5.4.350.0030.06719.01
5.4.340.0200.03718.99
5.4.320.0170.03718.95
5.4.310.0170.06718.84
5.4.300.0130.04018.98
5.4.290.0130.06019.06
5.4.280.0170.03718.99
5.4.270.0230.03718.83
5.4.260.0170.05719.14
5.4.250.0170.04019.30
5.4.240.0130.04018.96
5.4.230.0170.05018.98
5.4.220.0200.08019.22
5.4.210.0170.04719.18
5.4.200.0170.03719.07
5.4.190.0170.05719.15
5.4.180.0230.04319.15
5.4.170.0230.07019.13
5.4.160.0170.07319.12
5.4.150.0230.07019.05
5.4.140.0200.03316.50
5.4.130.0470.06016.28
5.4.120.0130.06316.34
5.4.110.0270.06016.36
5.4.100.0630.05716.36
5.4.90.0230.03716.40
5.4.80.0130.04016.38
5.4.70.0270.05716.26
5.4.60.0170.04016.51
5.4.50.0170.03716.42
5.4.40.0230.04316.33
5.4.30.0200.03316.52
5.4.20.0270.03016.48
5.4.10.0200.06016.37
5.4.00.0170.03715.89
5.3.290.0330.07714.64
5.3.280.0230.03714.71
5.3.270.0400.06314.75
5.3.260.0170.05714.66
5.3.250.0430.07014.69
5.3.240.0130.04714.58
5.3.230.0070.04714.71
5.3.220.0200.04014.48
5.3.210.0330.08014.79
5.3.200.0400.06014.57
5.3.190.0230.06314.79
5.3.180.0570.06014.55
5.3.170.0170.06314.79
5.3.160.0230.06014.57
5.3.150.0400.06714.54
5.3.140.0130.04014.67
5.3.130.0170.07314.52
5.3.120.0130.04014.56
5.3.110.0230.04714.54
5.3.100.0200.03314.18
5.3.90.0370.07314.17
5.3.80.0230.04713.95
5.3.70.0270.04014.14
5.3.60.0130.04313.91
5.3.50.0200.03713.96
5.3.40.0230.04014.18
5.3.30.0200.05713.93
5.3.20.0270.06713.64
5.3.10.0370.07013.67
5.3.00.0200.03313.57
5.2.170.0130.06711.08
5.2.160.0200.02711.16
5.2.150.0130.04011.08
5.2.140.0100.03711.30
5.2.130.0270.02311.09
5.2.120.0130.02711.12
5.2.110.0030.03711.25
5.2.100.0130.04711.02
5.2.90.0130.03311.11
5.2.80.0170.04711.18
5.2.70.0070.03311.02
5.2.60.0230.04310.98
5.2.50.0130.03010.94
5.2.40.0100.03011.01
5.2.30.0100.03010.90
5.2.20.0130.03310.93
5.2.10.0070.03710.77
5.2.00.0100.03010.94
5.1.60.0130.02710.09
5.1.50.0100.0309.89
5.1.40.0030.03310.11
5.1.30.0100.03010.27
5.1.20.0130.02310.43
5.1.10.0070.03010.22
5.1.00.0130.02310.23
5.0.50.0070.0308.64
5.0.40.0030.0238.42
5.0.30.0070.0308.22
5.0.20.0070.0238.22
5.0.10.0070.0238.22
5.0.00.0100.0378.22
4.4.90.0030.0178.22
4.4.80.0030.0178.22
4.4.70.0100.0108.22
4.4.60.0070.0138.22
4.4.50.0030.0178.22
4.4.40.0070.0238.22
4.4.30.0100.0138.22
4.4.20.0030.0178.22
4.4.10.0030.0178.22
4.4.00.0100.0208.22
4.3.110.0070.0178.22
4.3.100.0070.0138.22
4.3.90.0070.0208.22
4.3.80.0100.0208.22
4.3.70.0070.0138.22
4.3.60.0100.0138.22
4.3.50.0100.0138.22
4.3.40.0100.0238.22
4.3.30.0030.0238.22
4.3.20.0030.0208.22
4.3.10.0030.0208.22
4.3.00.0030.0138.22

preferences:
42.41 ms | 400 KiB | 5 Q