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run code in 300+ PHP versions simultaneously
<?php namespace Generics; class CollectionᐸTᐳ implements \Countable { private $items = []; public function add(T $item) { $this->items[] = $item; } public function count() { return count($this->items); } } $dates = new CollectionᐸDateTimeᐳ(); $dates->add(new DateTime('yesterday')); $dates->add(new DateTime('today')); $dates->add(new DateTime('tomorrow')); echo count($dates); class T extends \DateTime {} class DateTime extends T {}; class CollectionᐸDateTimeᐳ extends CollectionᐸTᐳ {}

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)
8.3.60.0130.01016.59
8.3.50.0000.01416.35
8.3.40.0170.00318.57
8.3.30.0090.00618.85
8.3.20.0040.00420.30
8.3.10.0040.00423.50
8.3.00.0080.00017.78
8.2.180.0000.02116.88
8.2.170.0150.00622.96
8.2.160.0070.01020.34
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0070.00020.90
8.2.120.0080.00026.35
8.2.110.0100.00020.57
8.2.100.0030.00917.91
8.2.90.0040.00419.22
8.2.80.0000.00817.97
8.2.70.0090.00317.63
8.2.60.0060.00318.04
8.2.50.0050.00318.10
8.2.40.0040.00420.43
8.2.30.0030.00621.14
8.2.20.0070.00317.94
8.2.10.0000.00717.94
8.2.00.0040.00418.12
8.1.280.0100.00725.92
8.1.270.0040.00423.97
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0000.00823.89
8.1.230.0070.00417.64
8.1.220.0060.00317.74
8.1.210.0060.00318.77
8.1.200.0030.00617.23
8.1.190.0040.00417.36
8.1.180.0050.00318.10
8.1.170.0060.00318.66
8.1.160.0050.00218.95
8.1.150.0030.00520.52
8.1.140.0050.00219.43
8.1.130.0070.00018.74
8.1.120.0050.00317.46
8.1.110.0000.01017.40
8.1.100.0070.00417.40
8.1.90.0000.00817.43
8.1.80.0040.00417.30
8.1.70.0040.00417.43
8.1.60.0030.00517.36
8.1.50.0080.00017.46
8.1.40.0040.00417.45
8.1.30.0000.00717.61
8.1.20.0040.00417.61
8.1.10.0050.00317.49
8.1.00.0080.00017.48
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0030.00318.33
8.0.270.0100.00017.14
8.0.260.0000.00716.83
8.0.250.0030.00317.07
8.0.240.0040.00417.01
8.0.230.0070.00317.06
8.0.220.0070.00016.98
8.0.210.0070.00016.93
8.0.200.0030.00317.00
8.0.190.0030.00617.06
8.0.180.0000.00716.99
8.0.170.0030.00317.00
8.0.160.0040.00417.08
8.0.150.0030.00316.96
8.0.140.0000.00717.01
8.0.130.0030.00413.39
8.0.120.0070.00017.04
8.0.110.0000.00717.03
8.0.100.0000.00716.84
8.0.90.0040.00416.84
8.0.80.0120.00316.91
8.0.70.0070.00016.95
8.0.60.0000.00816.81
8.0.50.0050.00316.87
8.0.30.0070.00917.16
8.0.20.0140.00617.40
8.0.10.0040.00416.84
8.0.00.0090.00916.68
7.4.330.0030.00315.55
7.4.320.0070.00016.54
7.4.300.0060.00016.57
7.4.290.0060.00316.44
7.4.280.0040.00416.52
7.4.270.0030.00316.37
7.4.260.0040.00416.57
7.4.250.0000.00816.39
7.4.240.0040.00416.44
7.4.230.0040.00416.20
7.4.220.0060.01516.48
7.4.210.0080.00616.51
7.4.200.0030.00316.54
7.4.160.0090.00616.49
7.4.150.0070.01017.40
7.4.140.0080.01217.86
7.4.130.0130.00616.61
7.4.120.0080.00916.61
7.4.110.0140.00316.51
7.4.100.0150.00716.56
7.4.90.0060.01216.37
7.4.80.0030.01319.39
7.4.70.0070.01016.39
7.4.60.0090.00616.46
7.4.50.0080.00816.39
7.4.40.0130.00316.50
7.4.30.0130.00316.65
7.4.00.0080.00814.80
7.3.330.0000.00513.21
7.3.320.0000.00613.35
7.3.310.0050.00316.39
7.3.300.0000.00716.30
7.3.290.0070.00916.30
7.3.280.0100.00716.33
7.3.270.0160.00017.40
7.3.260.0100.00816.49
7.3.250.0140.00516.38
7.3.240.0100.00916.51
7.3.230.0100.00716.45
7.3.210.0000.01716.42
7.3.200.0060.00916.63
7.3.190.0110.00616.35
7.3.180.0100.00616.46
7.3.170.0130.00316.48
7.3.160.0100.00616.46
7.3.120.0040.01114.93
7.3.110.0030.01414.92
7.3.100.0130.00014.84
7.3.90.0090.00614.43
7.3.80.0060.00914.80
7.3.70.0030.01014.88
7.3.60.0000.01115.02
7.3.50.0030.01314.68
7.3.40.0100.00314.68
7.3.30.0040.00714.79
7.3.20.0030.01016.61
7.3.10.0070.00716.69
7.3.00.0030.01216.59
7.2.330.0110.00716.47
7.2.320.0120.00416.63
7.2.310.0070.01016.58
7.2.300.0150.00716.27
7.2.290.0100.00716.52
7.2.240.0030.00914.71
7.2.230.0040.00914.99
7.2.220.0100.00714.72
7.2.210.0040.01114.91
7.2.200.0030.00614.96
7.2.190.0060.00915.07
7.2.180.0060.00615.04
7.2.170.0070.00315.10
7.2.160.0060.00914.77
7.2.150.0090.00616.82
7.2.140.0130.00016.84
7.2.130.0040.01116.63
7.2.120.0060.00916.77
7.2.110.0080.00816.84
7.2.100.0030.01416.56
7.2.90.0040.01116.84
7.2.80.0030.00916.66
7.2.70.0070.01116.89
7.2.60.0080.00716.84
7.2.50.0070.00716.80
7.2.40.0070.01016.92
7.2.30.0070.00717.03
7.2.20.0030.00616.86
7.2.10.0000.01316.46
7.2.00.0050.00818.04
7.1.330.0000.01415.84
7.1.320.0070.00715.82
7.1.310.0040.01115.48
7.1.300.0070.00715.82
7.1.290.0110.00315.68
7.1.280.0040.01115.54
7.1.270.0110.00415.48
7.1.260.0060.01015.72
7.1.250.0070.00415.64
7.1.200.0000.01015.67
7.1.100.0080.00418.01
7.1.70.0030.01016.97
7.1.60.0200.01334.88
7.1.50.0270.00734.75
7.1.40.0290.00634.32
7.1.30.0170.01034.41
7.1.20.0130.01334.60
7.1.10.0030.01116.38
7.1.00.0030.01416.49
7.0.200.0080.00816.71
7.0.190.0090.00616.78
7.0.180.0090.00716.12
7.0.170.0090.00316.07
7.0.160.0070.00516.10
7.0.150.0030.00916.25
7.0.140.0060.00816.00
7.0.130.0000.01816.68
7.0.120.0000.01716.68
7.0.110.0000.01616.12
7.0.100.0060.01016.21
7.0.90.0040.01116.02
7.0.80.0060.00916.20
7.0.70.0000.01316.29
7.0.60.0060.00916.19
7.0.50.0060.00716.24
7.0.40.0060.00816.33
7.0.30.0080.00616.29
7.0.20.0080.00816.26
7.0.10.0060.00916.50
7.0.00.0030.01316.35

preferences:
64.66 ms | 400 KiB | 5 Q