3v4l.org

run code in 300+ PHP versions simultaneously
<?php class ResourceType { public function __destruct() { echo "Resource is released.\n"; } } function get_callback() { $some_resource = new ResourceType(); $fn = function() use($some_resource) { // // why is my lock released? var_dump($some_resource); // "Free that resource" $some_resource = null; }; return $fn; } $fn = get_callback(); echo "Before callback\n"; $fn(); echo "After callback\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)
8.3.60.0100.00616.75
8.3.50.0150.00620.09
8.3.40.0120.00318.84
8.3.30.0090.00618.89
8.3.20.0030.00624.18
8.3.10.0000.00824.66
8.3.00.0040.00426.16
8.2.180.0070.00725.92
8.2.170.0090.00918.95
8.2.160.0180.00022.96
8.2.150.0040.00425.66
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0060.00320.56
8.2.110.0160.00322.20
8.2.100.0110.00017.91
8.2.90.0080.00017.84
8.2.80.0080.00017.97
8.2.70.0000.00817.63
8.2.60.0050.00317.93
8.2.50.0080.00018.07
8.2.40.0030.00518.16
8.2.30.0000.00717.95
8.2.20.0040.00420.47
8.2.10.0000.00718.05
8.2.00.0000.00819.28
8.1.280.0120.00625.92
8.1.270.0000.00723.99
8.1.260.0000.00926.35
8.1.250.0070.00028.09
8.1.240.0040.00422.54
8.1.230.0040.00820.74
8.1.220.0000.00817.79
8.1.210.0040.00418.85
8.1.200.0060.00317.35
8.1.190.0050.00317.22
8.1.180.0040.00418.10
8.1.170.0080.00018.64
8.1.160.0000.00718.88
8.1.150.0000.00718.68
8.1.140.0000.00717.52
8.1.130.0040.00417.36
8.1.120.0040.00417.35
8.1.110.0050.00317.46
8.1.100.0050.00217.40
8.1.90.0000.00817.43
8.1.80.0050.00217.45
8.1.70.0060.00717.41
8.1.60.0100.00517.51
8.1.50.0110.00517.44
8.1.40.0120.00417.43
8.1.30.0130.00417.54
8.1.20.0100.00617.52
8.1.10.0110.00617.46
8.1.00.0100.00617.40
8.0.300.0030.00519.86
8.0.290.0070.00016.75
8.0.280.0030.00318.45
8.0.270.0000.00716.82
8.0.260.0030.00316.68
8.0.250.0070.00016.95
8.0.240.0040.00416.91
8.0.230.0040.00416.82
8.0.220.0040.00416.84
8.0.210.0000.00716.88
8.0.200.0060.00516.84
8.0.190.0080.00616.79
8.0.180.0090.00516.74
8.0.170.0110.00316.76
8.0.160.0100.00516.75
8.0.150.0110.00416.71
8.0.140.0070.00816.73
8.0.130.0110.00416.76
8.0.120.0100.00416.75
8.0.110.0090.00516.75
8.0.100.0100.00516.72
8.0.90.0090.00616.68
8.0.80.0080.00616.65
8.0.70.0090.00516.71
8.0.60.0090.00516.70
8.0.50.0080.00716.69
8.0.30.0100.00516.74
8.0.20.0110.00416.80
8.0.10.0110.00416.85
7.4.330.0000.00515.55
7.4.320.0060.00016.51
7.4.300.0100.00416.47
7.4.290.0110.00316.41
7.4.280.0110.00416.44
7.4.270.0120.00416.42
7.4.260.0100.00516.47
7.4.250.0120.00416.39
7.4.240.0110.00516.35
7.4.230.0120.00416.46
7.4.220.0090.00516.41
7.4.210.0080.00616.33
7.4.200.0100.00516.36
7.4.190.0070.00616.46
7.4.180.0080.00416.31
7.4.160.0070.00416.35
7.4.150.0060.00616.32
7.4.140.0090.00416.21
7.4.130.0080.00416.25
7.4.120.0070.00516.32
7.4.110.0060.00616.28
7.4.100.0100.00316.35
7.4.90.0080.00516.26
7.4.80.0060.00616.33
7.4.70.0070.00416.27
7.4.60.0070.00416.33
7.4.50.0070.00516.23
7.4.40.0040.00616.26
7.4.30.0080.00316.29
7.4.20.0070.00416.33
7.4.10.0060.00516.34
7.4.00.0060.00616.35

preferences:
52.33 ms | 400 KiB | 5 Q