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run code in 300+ PHP versions simultaneously
<?php class SessionTest implements \SessionHandlerInterface { public function __construct() { session_set_save_handler($this, true); } public function open(string $save_path, string $name): bool { return true; } public function close(): bool { return true; } public function read(string $session_id): string { return ''; } public function write(string $session_id, string $session_data): bool { return true; } public function destroy(string $session_id): bool { return true; } public function gc(int $maxlifetime): bool { return true; } } $SessionTest = new SessionTest();

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)
8.3.60.0120.00316.63
8.3.50.0080.00618.35
8.3.40.0040.01221.65
8.3.30.0040.01118.54
8.3.20.0060.00324.18
8.3.10.0030.00624.66
8.3.00.0060.00326.16
8.2.180.0130.00725.92
8.2.170.0060.01519.00
8.2.160.0160.00322.96
8.2.150.0070.00025.66
8.2.140.0000.00724.66
8.2.130.0030.00626.16
8.2.120.0050.00319.64
8.2.110.0090.00020.52
8.2.100.0000.01217.91
8.2.90.0060.00317.75
8.2.80.0040.00418.77
8.2.70.0060.00317.63
8.2.60.0040.00417.93
8.2.50.0060.00318.07
8.2.40.0050.00318.35
8.2.30.0030.00618.11
8.2.20.0000.00717.93
8.2.10.0040.00419.29
8.2.00.0000.00719.13
8.1.280.0110.00725.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00318.93
8.1.230.0060.00617.83
8.1.220.0030.00617.79
8.1.210.0060.00318.77
8.1.200.0030.00617.22
8.1.190.0000.00817.35
8.1.180.0070.00318.10
8.1.170.0030.00618.66
8.1.160.0000.00818.89
8.1.150.0070.00018.93
8.1.140.0040.00418.84
8.1.130.0000.00817.41
8.1.120.0080.00017.48
8.1.110.0030.00517.43
8.1.100.0040.00417.43
8.1.90.0030.00317.40
8.1.80.0080.00017.39
8.1.70.0000.00717.48
8.1.60.0030.00617.62
8.1.50.0040.00417.56
8.1.40.0030.00517.43
8.1.30.0000.00817.64
8.1.20.0040.00417.66
8.1.10.0000.00817.42
8.1.00.0040.00417.48
8.0.300.0000.00918.77
8.0.290.0000.00816.75
8.0.280.0030.00518.38
8.0.270.0000.00718.01
8.0.260.0030.00316.80
8.0.250.0030.00316.90
8.0.240.0040.00416.87
8.0.230.0020.00516.83
8.0.220.0000.00716.95
8.0.210.0030.00316.79
8.0.200.0070.00016.97
8.0.190.0070.00016.96
8.0.180.0030.00516.91
8.0.170.0030.00516.92
8.0.160.0040.00416.93
8.0.150.0040.00416.79
8.0.140.0000.00716.81
8.0.130.0030.00313.29
8.0.120.0000.00716.77
8.0.110.0070.00016.88
8.0.100.0020.00616.93
8.0.90.0040.00416.77
8.0.80.0070.00616.88
8.0.70.0030.00416.85
8.0.60.0000.00816.89
8.0.50.0020.00516.85
8.0.30.0120.00016.92
8.0.20.0090.00816.97
8.0.10.0040.00416.98
8.0.00.0060.00817.00
7.4.330.0050.00015.55
7.4.320.0030.00316.55
7.4.300.0060.00016.54
7.4.290.0000.00816.43
7.4.280.0000.00916.58
7.4.270.0000.00716.55
7.4.260.0030.00213.25
7.4.250.0040.00416.37
7.4.240.0030.00316.39
7.4.230.0020.00516.37
7.4.220.0050.00216.59
7.4.210.0070.00616.46
7.4.200.0020.00616.58
7.4.190.0030.00316.41
7.4.180.0000.00816.69
7.4.160.0000.00716.71
7.4.150.0040.00316.25
7.4.140.0050.00316.39
7.4.130.0020.01116.37
7.4.120.0130.00316.34
7.4.110.0040.00916.32
7.4.100.0090.00416.41
7.4.90.0080.00516.40
7.4.80.0080.00516.30
7.4.70.0060.00716.50
7.4.60.0050.00716.31
7.4.50.0080.00516.42
7.4.40.0040.00916.33
7.4.30.0060.00716.24
7.4.20.0040.00916.28
7.4.10.0060.00716.47
7.4.00.0090.00316.35
7.3.330.0070.00016.22
7.3.320.0000.00613.21
7.3.310.0000.00716.30
7.3.300.0070.00016.19
7.3.290.0060.00816.21
7.3.280.0000.00916.18
7.3.270.0040.00416.24
7.3.260.0050.00916.28
7.3.250.0040.01016.34
7.3.240.0050.00816.36
7.3.230.0110.00416.21
7.3.220.0070.00516.28
7.3.210.0040.00816.13
7.3.200.0080.00516.26
7.3.190.0060.00616.29
7.3.180.0080.00416.20
7.3.170.0070.00716.28
7.3.160.0090.00416.29
7.3.150.0070.00516.25
7.3.140.0040.00916.28
7.3.130.0090.00316.31
7.3.120.0060.00616.21
7.3.110.0070.00716.19
7.3.100.0090.00516.12
7.3.90.0060.00916.38
7.3.80.0070.00616.21
7.3.70.0090.00716.30
7.3.60.0120.00516.27
7.3.50.0080.00916.26
7.3.40.0050.00716.33
7.3.30.0050.00816.28
7.3.20.0060.00817.31
7.3.10.0020.01117.20
7.3.00.0090.00617.29

preferences:
56.76 ms | 400 KiB | 5 Q