3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Test { private $a; public function __construct($a) { $this->a = $a; } } $b = new Test(1); $a = $b; $b = null; var_dump($b); var_dump($a);

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)
8.3.60.0120.00318.28
8.3.50.0100.00718.20
8.3.40.0060.01018.40
8.3.30.0150.00018.59
8.3.20.0000.00719.20
8.3.10.0030.00623.50
8.3.00.0040.00420.39
8.2.180.0180.00318.41
8.2.170.0140.00422.96
8.2.160.0030.01222.17
8.2.150.0040.00425.66
8.2.140.0080.00024.66
8.2.130.0040.00417.97
8.2.120.0040.00426.35
8.2.110.0030.00620.57
8.2.100.0040.00817.59
8.2.90.0120.00017.63
8.2.80.0040.00418.96
8.2.70.0080.00017.80
8.2.60.0040.00418.09
8.2.50.0080.00018.10
8.2.40.0040.00419.34
8.2.30.0070.00019.05
8.2.20.0060.00318.05
8.2.10.0000.00817.96
8.2.00.0080.00017.52
8.1.280.0070.01425.92
8.1.270.0040.00420.48
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0040.00423.84
8.1.230.0070.00419.16
8.1.220.0060.00317.77
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0040.00417.23
8.1.180.0000.00918.10
8.1.170.0050.00318.52
8.1.160.0040.00418.77
8.1.150.0070.00018.73
8.1.140.0030.00322.05
8.1.130.0030.00320.32
8.1.120.0040.00417.34
8.1.110.0080.00017.45
8.1.100.0040.00417.44
8.1.90.0000.00817.38
8.1.80.0050.00217.43
8.1.70.0030.00317.45
8.1.60.0030.00517.46
8.1.50.0030.00617.52
8.1.40.0040.00417.52
8.1.30.0050.00317.63
8.1.20.0090.00017.65
8.1.10.0000.00817.52
8.1.00.0030.00517.47
8.0.300.0000.00719.68
8.0.290.0030.00516.63
8.0.280.0030.00318.39
8.0.270.0000.00717.18
8.0.260.0050.00218.38
8.0.250.0040.00416.77
8.0.240.0000.00816.87
8.0.230.0040.00416.81
8.0.220.0000.00716.72
8.0.210.0030.00316.86
8.0.200.0050.00316.81
8.0.190.0080.00016.88
8.0.180.0080.00016.93
8.0.170.0000.00916.86
8.0.160.0080.00016.77
8.0.150.0040.00416.79
8.0.140.0000.00716.71
8.0.130.0030.00313.28
8.0.120.0000.00716.77
8.0.110.0000.00816.73
8.0.100.0040.00416.67
8.0.90.0040.00416.70
8.0.80.0090.00816.80
8.0.70.0050.00216.69
8.0.60.0080.00016.75
8.0.50.0040.00416.77
8.0.30.0130.00517.20
8.0.20.0090.00917.40
8.0.10.0040.00416.86
8.0.00.0130.00616.76
7.4.330.0020.00215.55
7.4.320.0060.00016.46
7.4.300.0000.00716.62
7.4.290.0070.00016.59
7.4.280.0090.00016.50
7.4.270.0050.00316.60
7.4.260.0000.00816.50
7.4.250.0030.00516.39
7.4.240.0070.00016.61
7.4.230.0000.00716.36
7.4.220.0030.00616.54
7.4.210.0090.00816.53
7.4.200.0040.00416.38
7.4.160.0100.00716.51
7.4.140.0080.01217.86
7.4.130.0070.01016.47
7.4.120.0100.00916.47
7.3.330.0000.00513.08
7.3.320.0060.00013.30
7.3.310.0040.00416.33
7.3.300.0030.00316.26
7.3.290.0040.00416.21
7.3.280.0070.00916.24
7.3.260.0100.01016.34
7.3.240.0080.01216.42
7.2.100.0270.00714.72

preferences:
56.79 ms | 401 KiB | 5 Q