3v4l.org

run code in 300+ PHP versions simultaneously
<?php class VarStorage { protected $_property; public function setProperty($value) { $this->_property = $value; } public function getProperty() { return $this->_property; } } function mem_print($message, $before, $after) { $difference = ($after - $before) / 1000000; echo sprintf($message, sprintf('%.2fM', $difference)); echo "\n"; } echo "Testing class in a PHP script\n\n"; // Create massive variable $mBeforeA = memory_get_usage(); $a1 = str_repeat('a', 3000000); $mAfterA = memory_get_usage(); mem_print('Creating $a1: %s', $mBeforeA, $mAfterA); // Refcount increases $a2 = str_repeat('a', 3000000); $mBeforeB = memory_get_usage(); $b = $a2; $mAfterB = memory_get_usage(); mem_print('$b = $a2: %s', $mBeforeB, $mAfterB); // Separation $mBeforeSeparation = memory_get_usage(); $b .= 'data'; $mAfterSeparation = memory_get_usage(); mem_print('$b .= \'data\': %s', $mBeforeSeparation, $mAfterSeparation); // Setting to a class property $a4 = str_repeat('a', 3000000); $class = new VarStorage; $mBeforeStorageSet = memory_get_usage(); $class->setProperty($a4); $mAfterStorageSet = memory_get_usage(); mem_print('$class->setProperty($a4): %s', $mBeforeStorageSet, $mAfterStorageSet); // Getting from a class property $mBeforeStorageGet = memory_get_usage(); $result = $class->getProperty(); $mAfterStorageGet = memory_get_usage(); mem_print('$result = $class->getProperty(): %s', $mBeforeStorageGet, $mAfterStorageGet); $mBeforeSeparationFromStorage = memory_get_usage(); $result .= 'data'; $mAfterSeparationFromStorage = memory_get_usage(); mem_print('$result .= \'data\': %s', $mBeforeSeparationFromStorage, $mAfterSeparationFromStorage);

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)
7.1.70.0080.00431.00
7.1.60.0130.01931.65
7.1.50.0060.01931.27
7.1.00.0070.07736.36
7.0.200.2120.01330.96
7.0.140.0070.07736.02
7.0.100.0100.05334.25
7.0.90.0170.07734.18
7.0.80.0200.08034.10
7.0.70.2270.08034.22
7.0.60.1630.05034.27
7.0.50.1330.08034.50
7.0.40.1670.04334.30
7.0.30.1700.06334.35
7.0.20.2000.05334.32
7.0.10.0700.06734.31
7.0.00.1530.08734.32
5.6.280.0100.07335.29
5.6.250.0170.08034.73
5.6.240.0070.09734.95
5.6.230.0100.08334.74
5.6.220.0230.05334.75
5.6.210.0230.08034.95
5.6.200.0170.07735.21
5.6.190.0070.05735.16
5.6.180.0170.08035.32
5.6.170.0100.04335.23
5.6.160.0200.04035.30
5.6.150.0130.08335.15
5.6.140.0130.04035.16
5.6.130.0170.08035.30
5.6.120.0130.07035.23
5.6.110.0070.04735.13
5.6.100.0200.07335.27
5.6.90.0130.08035.20
5.6.80.0170.08034.57
5.6.70.0170.07034.62
5.6.60.0270.07034.74
5.6.50.0130.08334.75
5.6.40.0170.07034.57
5.6.30.0200.07334.57
5.6.20.0170.08334.65
5.6.10.0170.08334.69
5.6.00.0170.04334.49
5.5.380.0200.08334.64
5.5.370.0200.07734.55
5.5.360.0030.08734.56
5.5.350.0170.08034.53
5.5.340.0100.08734.84
5.5.330.0100.08334.91
5.5.320.0230.07035.07
5.5.310.0270.07335.06
5.5.300.0130.06734.97
5.5.290.0100.08335.02
5.5.280.0200.08035.12
5.5.270.0130.09335.10
5.5.260.0070.05334.98
5.5.250.0130.06734.88
5.5.240.0100.08334.49
5.5.230.0100.08734.37
5.5.220.0170.07034.48
5.5.210.0200.07334.50
5.5.200.0130.07734.42
5.5.190.0170.08334.37
5.5.180.0170.08334.37
5.5.160.0130.04734.47
5.5.150.0070.06334.27
5.5.140.0270.07034.45
5.5.130.0130.07734.18
5.5.120.0170.08034.36
5.5.110.0170.07734.31
5.5.100.0170.04334.14
5.5.90.0200.07734.26
5.5.80.0170.07034.24
5.5.70.0100.08334.23
5.5.60.0030.08034.35
5.5.50.0130.07334.16
5.5.40.0100.06034.29
5.5.30.0100.08034.19
5.5.20.0070.08034.25
5.5.10.0130.07734.17
5.5.00.0130.07734.31
5.4.450.0130.08033.47
5.4.440.0200.08033.56
5.4.430.0070.08333.52
5.4.420.0070.04333.56
5.4.410.0100.08033.37
5.4.400.0230.06033.22
5.4.390.0170.04033.13
5.4.380.0170.08033.11
5.4.370.0170.07333.03
5.4.360.0170.06733.16
5.4.350.0130.08333.30
5.4.340.0130.08033.12
5.4.320.0200.07033.18
5.4.310.0100.05033.12
5.4.300.0200.06733.17
5.4.290.0100.08033.07
5.4.280.0100.06033.24
5.4.270.0230.07033.17
5.4.260.0170.06333.23
5.4.250.0130.07733.23
5.4.240.0230.07033.23
5.4.230.0230.07333.14
5.4.220.0100.09733.00
5.4.210.0130.07333.23
5.4.200.0130.07733.16
5.4.190.0130.07733.23
5.4.180.0200.06733.30
5.4.170.0130.08333.14
5.4.160.0170.07033.13
5.4.150.0130.08733.15
5.4.140.0100.04330.54
5.4.130.0130.06030.47
5.4.120.0070.06330.50
5.4.110.0270.06030.60
5.4.100.0170.06730.69
5.4.90.0170.07030.53
5.4.80.0170.07330.63
5.4.70.0200.06030.66
5.4.60.0070.08330.65
5.4.50.0100.07030.61
5.4.40.0130.04330.43
5.4.30.0170.07330.54
5.4.20.0130.07330.45
5.4.10.0130.07330.43
5.4.00.0070.08030.02
5.3.290.0100.06728.79
5.3.280.0300.06328.60
5.3.270.0100.07728.66
5.3.260.0130.08028.57
5.3.250.0170.07028.73
5.3.240.0170.06028.62
5.3.230.0170.06728.60
5.3.220.0130.07328.60
5.3.210.0200.06328.56
5.3.200.0170.07328.56
5.3.190.0100.05728.54
5.3.180.0100.07728.68
5.3.170.0130.07328.70
5.3.160.0100.08328.52
5.3.150.0030.07328.64
5.3.140.0170.07028.59
5.3.130.0170.07728.58
5.3.120.0100.07028.61
5.3.110.0230.05728.62
5.3.100.0200.04727.99
5.3.90.0230.07028.09
5.3.80.0230.06727.98
5.3.70.0130.07027.92
5.3.60.0200.06327.92
5.3.50.0100.06727.91
5.3.40.0130.07327.99
5.3.30.0130.04027.88
5.3.20.0230.03027.71
5.3.10.0170.06327.58
5.3.00.0170.06727.57
5.2.170.0070.03725.05
5.2.160.0070.03324.88
5.2.150.0130.06025.11
5.2.140.0170.05324.96
5.2.130.0230.05325.11
5.2.120.0170.06024.98
5.2.110.0070.05724.99
5.2.100.0100.03724.95
5.2.90.0200.05025.02
5.2.80.0130.05325.05
5.2.70.0170.05325.05
5.2.60.0200.06024.96
5.2.50.0170.05724.91
5.2.40.0100.06324.86
5.2.30.0270.04724.83
5.2.20.0170.06025.04
5.2.10.0130.05724.87
5.2.00.0000.04011.48
5.1.60.0100.04311.48
5.1.50.0030.03311.48
5.1.40.0030.04711.48
5.1.30.0030.05311.48
5.1.20.0100.05311.48
5.1.10.0070.05011.48
5.1.00.0030.05711.48
5.0.50.0070.04711.48
5.0.40.0030.04311.48
5.0.30.0030.06711.48
5.0.20.0030.04011.48
5.0.10.0000.03311.48
5.0.00.0030.06011.48
4.4.90.0070.03311.48
4.4.80.0030.03711.48
4.4.70.0100.03011.48
4.4.60.0000.03311.48
4.4.50.0030.03311.48
4.4.40.0000.03011.48
4.4.30.0100.02711.48
4.4.20.0000.03711.48
4.4.10.0030.03311.48
4.4.00.0030.05311.48
4.3.110.0000.03711.48
4.3.100.0130.02711.48
4.3.90.0030.03311.48
4.3.80.0030.05711.48
4.3.70.0100.02011.48
4.3.60.0000.04011.48
4.3.50.0000.03011.48
4.3.40.0030.02711.48
4.3.30.0070.03011.48
4.3.20.0000.03711.48
4.3.10.0030.03311.48
4.3.00.0000.03711.48

preferences:
28.93 ms | 401 KiB | 5 Q