3v4l.org

run code in 300+ PHP versions simultaneously
<?php function acquire_some_resource() { return new class { public function __construct() { echo "<locked>\n"; } public function __destruct() { echo "</locked>\n"; } }; } echo "acquire some_resource\n"; $some_resource = acquire_some_resource(); echo "create fn capturing some_resource by reference\n"; $fn = function () use (&$some_resource) { $some_resource = null; // this line has an effect }; echo "call fn\n"; $fn(); echo "unset fn\n"; $fn = null; echo "unset some_resource\n"; $some_resource = null; echo "DONE.\n";

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)
8.4.120.0110.00922.16
8.4.110.0130.00422.59
8.4.100.0040.00518.79
8.4.90.0100.00919.09
8.4.80.0130.00518.87
8.4.70.0110.01117.89
8.4.60.0100.00618.70
8.4.50.0130.00824.07
8.4.40.0120.00819.49
8.4.30.0060.00920.57
8.4.20.0130.00620.67
8.4.10.0100.01021.99
8.3.250.0110.00719.15
8.3.240.0130.00616.97
8.3.230.0110.00816.68
8.3.220.0110.00718.88
8.3.210.0110.00918.34
8.3.200.0050.00416.47
8.3.190.0100.00916.56
8.3.180.0090.01018.33
8.3.170.0070.00016.64
8.3.160.0040.00416.73
8.3.150.0130.00617.12
8.3.140.0070.00316.63
8.3.130.0060.00318.58
8.3.120.0000.00818.73
8.3.110.0030.00616.77
8.3.100.0090.00316.77
8.3.90.0150.00326.77
8.3.80.0090.00016.47
8.3.70.0090.00916.58
8.3.60.0120.00616.63
8.3.50.0110.00720.07
8.3.40.0150.00318.72
8.3.30.0100.00618.71
8.3.20.0050.00224.18
8.3.10.0050.00324.66
8.3.00.0040.00426.16
8.2.290.0110.00522.19
8.2.280.0090.00818.18
8.2.270.0160.00316.46
8.2.260.0090.00918.72
8.2.250.0060.00318.45
8.2.240.0060.00318.44
8.2.230.0050.00320.94
8.2.220.0050.00324.06
8.2.210.0040.00426.77
8.2.200.0040.00716.48
8.2.190.0090.00616.88
8.2.180.0060.00925.92
8.2.170.0140.00718.82
8.2.160.0070.00722.96
8.2.150.0040.00425.66
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0070.00021.02
8.2.110.0060.00322.26
8.2.100.0000.00822.20
8.1.330.0120.00621.91
8.1.320.0090.01116.04
8.1.310.0030.00618.54
8.1.300.0100.00618.34
8.1.290.0090.00030.84
8.1.280.0110.00425.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0040.00720.11
8.1.230.0060.00320.25
8.1.70.0090.00217.30

preferences:
13.84 ms | 403 KiB | 5 Q