3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); ini_set('display_errors', 1); $a = null; echo $a;

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)
8.3.40.0040.01118.65
8.3.30.0120.00318.74
8.3.20.0090.00018.77
8.3.10.0040.00421.78
8.3.00.0050.00319.41
8.2.170.0040.01122.96
8.2.160.0110.00718.99
8.2.150.0050.00224.18
8.2.140.0050.00324.66
8.2.130.0080.00022.20
8.2.120.0040.00426.35
8.2.110.0040.00721.97
8.2.100.0090.00318.16
8.2.90.0040.00419.08
8.2.80.0000.00817.97
8.2.70.0080.00617.36
8.2.60.0050.00317.93
8.2.50.0000.00718.10
8.2.40.0000.00720.30
8.2.30.0040.00420.92
8.2.20.0000.00718.04
8.2.10.0060.00318.09
8.2.00.0030.00317.96
8.1.270.0040.00422.05
8.1.260.0020.00526.35
8.1.250.0040.00428.09
8.1.240.0000.00823.92
8.1.230.0070.00417.42
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0040.00417.11
8.1.180.0000.00818.10
8.1.170.0080.00018.46
8.1.160.0040.00418.88
8.1.150.0050.00220.66
8.1.140.0000.00819.55
8.1.130.0000.00918.73
8.1.120.0000.00717.41
8.1.110.0070.00017.29
8.1.100.0050.00317.38
8.1.90.0030.00517.30
8.1.80.0020.00517.29
8.1.70.0030.00317.36
8.1.60.0040.00417.55
8.1.50.0070.00017.48
8.1.40.0070.00417.43
8.1.30.0070.00017.62
8.1.20.0000.00817.43
8.1.10.0060.00317.54
8.1.00.0040.00417.43
8.0.300.0000.00818.77
8.0.290.0050.00216.75
8.0.280.0000.00718.48
8.0.270.0070.00017.31
8.0.260.0030.00316.75
8.0.250.0030.00316.98
8.0.240.0000.00816.82
8.0.230.0030.00316.85
8.0.220.0030.00316.87
8.0.210.0030.00316.77
8.0.200.0060.00016.94
8.0.190.0000.00716.85
8.0.180.0050.00316.86
8.0.170.0000.00716.82
8.0.160.0000.00716.79
8.0.150.0030.00516.80
8.0.140.0000.00716.66
8.0.130.0040.00413.21
8.0.120.0000.00716.73
8.0.110.0070.00016.86
8.0.100.0050.00316.78
8.0.90.0030.00316.86
8.0.80.0090.00616.77
8.0.70.0020.00516.70
8.0.60.0040.00316.61
8.0.50.0040.00416.61
8.0.30.0090.00817.16
8.0.20.0100.00817.40
8.0.10.0040.00416.80
8.0.00.0000.01716.73
7.4.330.0020.00215.55
7.4.320.0060.00016.44
7.4.300.0040.00416.32
7.4.290.0100.00016.42
7.4.280.0080.00016.50
7.4.270.0060.00016.30
7.4.260.0030.00316.41
7.4.250.0030.00316.38
7.4.240.0030.00616.43
7.4.230.0030.00316.55
7.4.220.0110.00916.38
7.4.210.0050.01216.55
7.4.200.0000.00716.17
7.4.160.0100.00916.43
7.4.150.0060.01217.40
7.4.140.0070.01117.86
7.4.130.0070.01716.39
7.4.120.0100.01016.41
7.3.330.0000.00513.02
7.3.320.0000.00613.11
7.3.310.0040.00416.13
7.3.300.0000.00716.18
7.3.290.0040.00416.03
7.3.280.0100.00716.19
7.3.270.0100.00717.40
7.3.260.0060.00916.23
7.3.250.0080.01016.20
7.3.240.0060.00916.38

preferences:
45.81 ms | 400 KiB | 5 Q