3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $bar = ""; } $fooArr = [new Foo()]; function modifiesLocallyClonedFoo($fooArr) { $fooArr[0] = clone $fooArr[0]; $fooArr[0]->bar = "bar"; } modifiesLocallyClonedFoo($fooArr); var_dump($fooArr[0]); // Creating a reference to an array item changes the way the array behaves?!?!?!? $bar = &$fooArr[0]; modifiesLocallyClonedFoo($fooArr); var_dump($fooArr[0]);

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)
8.3.70.0110.00716.58
8.3.60.0070.01316.63
8.3.50.0150.00319.77
8.3.40.0140.00020.46
8.3.30.0070.00718.71
8.3.20.0050.00324.18
8.3.10.0040.00424.66
8.3.00.0000.00826.16
8.2.190.0070.00716.58
8.2.180.0060.00925.92
8.2.170.0090.00918.79
8.2.160.0070.00722.96
8.2.150.0000.00825.66
8.2.140.0080.00024.66
8.2.130.0050.00326.16
8.2.120.0070.00026.16
8.2.110.0060.00319.23
8.2.100.0100.00317.75
8.2.90.0030.00517.63
8.2.80.0050.00318.77
8.2.70.0030.00517.75
8.2.60.0000.00817.50
8.2.50.0050.00317.98
8.2.40.0000.00817.91
8.2.30.0030.00518.10
8.2.20.0030.00520.32
8.2.10.0050.00217.88
8.2.00.0080.00019.30
8.1.280.0160.00025.92
8.1.270.0030.00524.02
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00319.13
8.1.230.0080.00317.77
8.1.220.0050.00317.74
8.1.210.0030.00618.77
8.1.200.0040.00417.35
8.1.190.0040.00417.35
8.1.180.0030.00618.10
8.1.170.0050.00317.62
8.1.160.0060.00318.84
8.1.150.0040.00418.70
8.1.140.0040.00417.46
8.1.130.0000.00718.85
8.1.120.0000.00717.44
8.1.110.0040.00417.50
8.1.100.0000.00817.46
8.1.90.0000.00817.37
8.1.80.0030.00617.41
8.1.70.0000.00717.36
8.1.60.0030.00517.61
8.1.50.0000.00817.47
8.1.40.0040.00417.45
8.1.30.0030.00517.67
8.1.20.0050.00317.58
8.1.10.0090.00017.54
8.1.00.0030.00617.54
8.0.300.0060.00318.77
8.0.290.0040.00416.75
8.0.280.0000.00718.34
8.0.270.0030.00316.84
8.0.260.0000.00618.42
8.0.250.0050.00416.87
8.0.240.0040.00417.01
8.0.230.0030.00717.02
8.0.220.0030.00316.92
8.0.210.0070.00016.95
8.0.200.0030.00316.95
8.0.190.0060.00316.93
8.0.180.0040.00416.93
8.0.170.0030.00616.83
8.0.160.0080.00416.94
8.0.150.0040.00416.86
8.0.140.0050.00216.90
8.0.130.0000.00816.82
8.0.120.0000.00816.75
8.0.110.0040.00416.87
8.0.100.0040.00416.82
8.0.90.0080.00016.86
8.0.80.0020.00516.89
8.0.70.0030.00316.80
8.0.60.0070.00016.81
8.0.50.0040.00416.94
8.0.30.0070.00016.76
8.0.20.0000.00716.87
8.0.10.0040.00416.89
7.4.330.0030.00315.55
7.4.320.0000.00716.50
7.4.300.0000.00716.52
7.4.290.0000.00716.57
7.4.280.0040.00416.64
7.4.270.0000.00816.46
7.4.260.0000.00716.42
7.4.250.0030.00316.57
7.4.240.0030.00316.49
7.4.230.0050.00216.41
7.4.220.0030.00316.51
7.4.210.0000.00716.52
7.4.200.0070.00016.39
7.4.190.0070.00016.55
7.4.180.0030.00316.64
7.4.160.0040.00416.72
7.4.150.0040.00416.48
7.4.140.0070.00016.45
7.4.130.0040.00416.47
7.4.120.0000.00716.46
7.4.110.0030.00316.43
7.4.100.0040.00416.52
7.4.90.0040.00416.44
7.4.80.0070.00016.45
7.4.70.0000.00716.44
7.4.60.0040.00416.40
7.4.50.0070.00016.34
7.4.40.0070.00016.27
7.4.30.0030.00316.34
7.4.20.0030.00316.37
7.4.10.0000.00816.39
7.4.00.0030.00316.55

preferences:
46.87 ms | 401 KiB | 5 Q