3v4l.org

run code in 500+ PHP versions simultaneously
<?php class X { public static function test(X $x) { var_dump($x); if (version_compare(PHP_VERSION, '8.1') >= 0) { var_dump(serialize($x)); } } } class Y extends X { private $value = 1; private function __debugInfo() { return array('value' => $this->value); } private function __sleep() { return array('value'); } private function __destruct() {} } X::test(new X()); X::test(new Y());

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)
8.5.90.0070.00116.92
8.5.80.0120.00617.04
8.5.70.0110.00616.80
8.5.60.0100.00816.91
8.5.50.0110.00616.87
8.5.30.0140.00519.24
8.5.20.0100.00820.38
8.5.10.0090.00819.53
8.5.00.0140.00819.96
8.4.240.0110.00919.60
8.4.230.0080.00819.37
8.4.220.0070.01319.63
8.4.210.0080.01419.60
8.4.180.0120.00922.17
8.4.170.0120.01123.80
8.4.160.0180.00623.99
8.4.150.0060.00716.88
8.4.140.0100.01217.78
8.4.130.0140.00617.93
8.4.120.0100.01020.66
8.4.110.0110.00922.21
8.4.100.0130.00717.59
8.4.90.0090.01218.03
8.4.80.0050.00318.90
8.4.70.0060.00718.29
8.4.60.0130.00518.75
8.4.50.0140.00919.66
8.4.40.0070.01317.73
8.4.30.0130.00623.65
8.4.20.0120.00819.88
8.4.10.0030.00619.66
8.3.330.0050.00518.47
8.3.320.0140.00618.46
8.3.310.0140.00618.55
8.3.300.0110.00920.85
8.3.290.0130.00720.84
8.3.280.0080.01218.49
8.3.270.0100.01016.53
8.3.260.0150.00516.45
8.3.250.0110.00818.89
8.3.240.0080.01116.84
8.3.230.0130.00716.45
8.3.220.0120.00618.76
8.3.210.0120.00716.88
8.3.200.0050.00416.90
8.3.190.0100.00917.21
8.3.180.0120.00416.76
8.3.170.0070.01017.10
8.3.160.0120.00619.03
8.3.150.0060.00917.29
8.3.140.0110.00720.82
8.3.130.0060.00318.62
8.3.120.0190.00619.90
8.3.110.0140.00718.56
8.3.100.0170.01218.54
8.3.90.0170.00517.24
8.3.80.0220.00316.60
8.3.70.0200.00516.50
8.3.60.0180.00417.18
8.3.50.0180.00516.50
8.3.40.0220.00118.08
8.3.30.0160.00617.36
8.3.20.0190.00217.33
8.3.10.0150.00617.36
8.3.00.0060.00818.61
8.2.320.0110.01018.15
8.2.310.0080.00719.93
8.2.300.0090.01220.27
8.2.290.0040.00420.29
8.2.280.0120.00818.31
8.2.270.0160.00316.58
8.2.260.0070.01017.29
8.2.250.0080.00016.74
8.2.240.0100.00318.56
8.2.230.0150.00516.45
8.2.220.0140.00716.50
8.2.210.0160.00417.04
8.2.200.0150.00416.48
8.2.190.0160.00516.39
8.2.180.0150.00316.55
8.2.170.0160.00517.54
8.2.160.0160.00418.03
8.2.150.0140.00417.25
8.2.140.0160.00417.29
8.2.130.0160.00517.37
8.2.120.0250.00217.30
8.2.110.0190.00717.38
8.2.100.0160.00617.50
8.2.90.0160.00817.31
8.2.80.0170.00517.77
8.2.70.0200.00217.38
8.2.60.0190.00517.34
8.2.50.0200.00317.48
8.2.40.0190.00418.05
8.2.30.0160.00517.15
8.2.20.0150.00517.85
8.2.10.0130.00617.13
8.2.00.0130.00517.17
8.1.340.0120.00817.80
8.1.330.0120.00718.33
8.1.320.0100.00916.28
8.1.310.0090.00918.21
8.1.300.0050.00718.36
8.1.290.0120.00716.44
8.1.280.0120.00716.63
8.1.270.0190.00217.04
8.1.260.0150.00617.06
8.1.250.0160.00416.91
8.1.240.0100.00717.13
8.1.230.0160.00217.01
8.1.220.0150.00317.49
8.1.210.0160.00217.02
8.1.200.0140.00417.48
8.1.190.0140.00417.08
8.1.180.0140.00416.95
8.1.170.0140.00516.94
8.1.160.0100.00716.97
8.1.150.0130.00516.99
8.1.140.0160.00217.10
8.1.130.0110.00816.95
8.1.120.0160.00217.64
8.1.110.0140.00417.08
8.1.100.0120.00716.90
8.1.90.0170.00418.20
8.1.80.0110.00816.97
8.1.70.0150.00517.00
8.1.60.0170.00417.17
8.1.50.0140.00417.10
8.1.40.0130.00617.13
8.1.30.0140.00417.35
8.1.20.0120.00717.13
8.1.10.0140.00516.93
8.1.00.0160.00617.09

preferences:
45.44 ms | 1100 KiB | 5 Q