3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $b = false; function __construct(&$oB) { $this->b = $oB; } } class B { public $a = false; function __construct(&$oA) { $this->a = $oA; } } $aDepends = false; //$pLink = &$aDepends; $oB = new B(false); $oA = new A($oB); //$aDepends=$oA; $oB->a = $oA; var_dump($oA); var_dump($oB);

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)
8.3.40.0150.00618.54
8.3.30.0070.00718.84
8.3.20.0040.00420.05
8.3.10.0040.00423.65
8.3.00.0070.00023.48
8.2.170.0120.00618.86
8.2.160.0070.01022.96
8.2.150.0030.00624.18
8.2.140.0080.00024.66
8.2.130.0060.00319.64
8.2.120.0040.00426.35
8.2.110.0120.00021.18
8.2.100.0070.00417.91
8.2.90.0000.00919.05
8.2.80.0080.00017.97
8.2.70.0030.00717.35
8.2.60.0000.00817.55
8.2.50.0030.00618.07
8.2.40.0000.00822.28
8.2.30.0070.00020.64
8.2.20.0070.00017.62
8.2.10.0000.00718.08
8.2.00.0040.00418.12
8.1.270.0080.00022.13
8.1.260.0080.00028.09
8.1.250.0000.00828.09
8.1.240.0040.00421.29
8.1.230.0110.00017.42
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0000.00917.23
8.1.190.0070.00218.98
8.1.180.0050.00218.10
8.1.170.0030.00518.49
8.1.160.0070.00020.80
8.1.150.0000.00718.88
8.1.140.0080.00019.52
8.1.130.0030.00317.59
8.1.120.0000.00717.44
8.1.110.0000.00717.34
8.1.100.0000.00717.43
8.1.90.0040.00417.42
8.1.80.0050.00317.31
8.1.70.0030.00317.40
8.1.60.0000.00717.49
8.1.50.0000.00917.46
8.1.40.0030.00517.42
8.1.30.0000.00817.64
8.1.20.0050.00317.71
8.1.10.0000.00817.50
8.1.00.0100.00017.42
8.0.300.0000.00718.77
8.0.290.0040.00416.75
8.0.280.0030.00318.28
8.0.270.0000.00717.27
8.0.260.0000.00617.15
8.0.250.0000.00716.95
8.0.240.0080.00416.89
8.0.230.0000.00816.95
8.0.220.0070.00016.95
8.0.210.0070.00016.88
8.0.200.0030.00316.98
8.0.190.0000.00816.98
8.0.180.0040.00416.89
8.0.170.0080.00016.83
8.0.160.0000.00716.94
8.0.150.0040.00416.86
8.0.140.0090.00016.84
8.0.130.0060.00013.39
8.0.120.0040.00416.77
8.0.110.0040.00416.86
8.0.100.0030.00516.88
8.0.90.0050.00216.89
8.0.80.0090.01216.94
8.0.70.0000.00716.79
8.0.60.0030.00516.76
8.0.50.0090.00016.77
8.0.30.0140.00916.95
8.0.20.0130.00917.40
8.0.10.0000.00716.89
8.0.00.0080.01016.69
7.4.330.0020.00216.79
7.4.320.0030.00316.58
7.4.300.0030.00316.41
7.4.290.0040.00416.52
7.4.280.0030.00616.52
7.4.270.0000.00716.52
7.4.260.0060.00316.61
7.4.250.0050.00316.58
7.4.240.0020.00516.57
7.4.230.0000.00716.64
7.4.220.0150.00416.52
7.4.210.0070.01016.62
7.4.200.0050.00216.44
7.4.160.0040.01416.48
7.4.150.0060.01217.40
7.4.140.0120.00917.86
7.4.130.0100.01116.54
7.4.120.0030.01316.51
7.4.110.0160.00316.53
7.4.100.0090.00916.47
7.4.90.0120.00616.51
7.4.80.0090.01319.39
7.4.70.0150.00916.43
7.4.60.0070.01016.64
7.4.50.0120.00316.57
7.4.40.0100.00716.36
7.4.30.0070.01016.41
7.4.00.0060.01015.05
7.3.330.0000.00513.14
7.3.320.0000.00613.37
7.3.310.0000.00716.41
7.3.300.0070.00016.22
7.3.290.0070.00016.41
7.3.280.0080.00816.36
7.3.270.0070.01017.40
7.3.260.0090.01616.46
7.3.250.0130.00616.32
7.3.240.0110.00616.46
7.3.230.0120.00416.39
7.3.210.0080.00816.47
7.3.200.0000.01619.39
7.3.190.0060.01116.39
7.3.180.0000.01516.30
7.3.170.0130.00616.32
7.3.160.0080.01216.43
7.3.10.0040.00916.46
7.3.00.0040.00816.61
7.2.330.0120.00616.28
7.2.320.0120.00616.56
7.2.310.0130.00316.66
7.2.300.0070.01116.60
7.2.290.0080.01516.64
7.2.130.0100.00616.76
7.2.120.0080.00416.47
7.2.110.0040.00716.86
7.2.100.0070.01016.92
7.2.90.0100.00316.49
7.2.80.0070.00316.89
7.2.70.0110.00016.83
7.2.60.0050.01016.63
7.2.50.0070.00416.54
7.2.40.0040.01116.62
7.2.30.0000.01016.85
7.2.20.0100.00316.90
7.2.10.0090.00616.64
7.2.00.0040.00718.06
7.1.250.0080.00415.41
7.1.200.0040.00815.52
7.1.100.0000.01217.87
7.1.70.0040.00417.05
7.1.60.0000.01819.20
7.1.50.0060.00616.54
7.1.00.0000.08022.51
7.0.200.0080.00414.92
7.0.60.0070.07021.67
7.0.50.0030.04017.88
7.0.40.0100.05719.96
7.0.30.0230.03720.09
7.0.20.0300.03720.27
7.0.10.0130.08320.15
7.0.00.0130.07020.12
5.6.280.0000.03321.12
5.6.210.0070.03720.47
5.6.200.0170.07318.23
5.6.190.0030.08720.41
5.6.180.0330.07020.61
5.6.170.0270.05320.47
5.6.160.0070.08720.42
5.6.150.0030.06018.17
5.6.140.0100.06018.18
5.6.130.0200.07318.15
5.6.120.0100.04721.16
5.6.110.0070.08021.14
5.6.100.0170.06320.98
5.6.90.0100.06720.98
5.6.80.0100.08020.41
5.5.350.0330.07020.41
5.5.340.0100.04018.05
5.5.330.0000.05720.41
5.5.320.0230.04720.33
5.5.310.0100.04720.27
5.5.300.0100.04017.97
5.5.290.0030.08717.95
5.5.280.0100.03720.91
5.5.270.0030.07720.64
5.5.260.0170.07020.87
5.5.250.0130.06320.58
5.5.240.0170.07320.36

preferences:
47.52 ms | 400 KiB | 5 Q