3v4l.org

run code in 300+ PHP versions simultaneously
<?php class SomethingBuilder { private $name; private $super; function __construct($name){ $this->name = $name; } function setSuper($super){ $this->super = $super; } function getSuper(){ return $this->super; } function copy($whatToCopy = null, $copyOfwhatToCopy = null){ if($this !== $whatToCopy){ $copy = new SomethingBuilder($this->name); if($this->super){ $copy->setSuper($this->super->copy( $whatToCopy ?? $this, $copyOfwhatToCopy ?? $copy )); } return $copy; }else{ return $copyOfwhatToCopy; } } } echo "No circular dependency:\n"; $a = new SomethingBuilder("A"); $b = new SomethingBuilder("B"); $a->setSuper($b); echo "ORIGINAL:\n"; var_dump($a); echo "COPY:\n"; var_dump($a->copy()); echo "\n----------\n\n"; echo "Self circular dependency:\n"; $a = new SomethingBuilder("A"); $a->setSuper($a); echo "ORIGINAL:\n"; var_dump($a); echo "COPY:\n"; var_dump($a->copy()); echo "\n----------\n\n"; echo "Two items circular dependency:\n"; $a = new SomethingBuilder("A"); $b = new SomethingBuilder("B"); $b->setSuper($a); $a->setSuper($b); echo "ORIGINAL:\n"; var_dump($a); echo "COPY:\n"; var_dump($a->copy()); echo "\n----------\n\n"; echo "Three items circular dependency:\n"; $a = new SomethingBuilder("A"); $b = new SomethingBuilder("B"); $c = new SomethingBuilder("C"); $a->setSuper($c); $b->setSuper($a); $c->setSuper($b); echo "ORIGINAL:\n"; var_dump($a); echo "COPY:\n"; var_dump($a->copy());

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)
8.3.60.0090.00918.43
8.3.50.0110.01121.21
8.3.40.0160.00618.63
8.3.30.0120.00318.69
8.3.20.0060.00320.32
8.3.10.0060.00323.35
8.3.00.0000.00820.76
8.2.180.0120.00616.50
8.2.170.0120.00622.96
8.2.160.0070.00719.29
8.2.150.0070.00724.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0070.00417.50
8.2.110.0040.00419.05
8.2.100.0120.00017.75
8.2.90.0080.00019.21
8.2.80.0060.00317.97
8.2.70.0040.00417.50
8.2.60.0030.00517.80
8.2.50.0090.00318.07
8.2.40.0080.00021.19
8.2.30.0040.00417.95
8.2.20.0030.00617.63
8.2.10.0040.00418.18
8.2.00.0040.00418.14
8.1.280.0090.01225.92
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0000.00922.14
8.1.230.0060.00617.42
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00717.35
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0000.00818.68
8.1.160.0050.00521.93
8.1.150.0070.00018.89
8.1.140.0030.00617.37
8.1.130.0090.00017.59
8.1.120.0040.00417.38
8.1.110.0000.00717.41
8.1.100.0000.00817.29
8.1.90.0000.00717.43
8.1.80.0030.00617.45
8.1.70.0000.00717.34
8.1.60.0040.00417.57
8.1.50.0000.00817.60
8.1.40.0000.00817.56
8.1.30.0030.00517.78
8.1.20.0040.00417.64
8.1.10.0070.00017.61
8.1.00.0000.00817.50
8.0.300.0000.00718.77
8.0.290.0040.00416.88
8.0.280.0000.00718.43
8.0.270.0050.00317.25
8.0.260.0030.00317.31
8.0.250.0030.00616.85
8.0.240.0040.00416.95
8.0.230.0040.00416.96
8.0.220.0030.00316.89
8.0.210.0000.00716.79
8.0.200.0030.00316.98
8.0.190.0040.00417.00
8.0.180.0030.00616.80
8.0.170.0070.00016.82
8.0.160.0030.00316.80
8.0.150.0000.00716.72
8.0.140.0000.00816.89
8.0.130.0030.00713.23
8.0.120.0060.00316.87
8.0.110.0040.00416.95
8.0.100.0000.00716.98
8.0.90.0040.00417.01
8.0.80.0130.01016.85
8.0.70.0030.00516.88
8.0.60.0040.00416.67
8.0.50.0070.00016.84
8.0.30.0100.00917.05
8.0.20.0130.01217.40
8.0.10.0040.00416.90
8.0.00.0130.00816.73
7.4.330.0030.00315.08
7.4.320.0000.00716.71
7.4.300.0000.00616.71
7.4.290.0070.00016.58
7.4.280.0060.00316.67
7.4.270.0000.00716.68
7.4.260.0050.00216.41
7.4.250.0040.00416.65
7.4.240.0030.00316.56
7.4.230.0040.00416.69
7.4.220.0100.01016.69
7.4.210.0040.01116.55
7.4.200.0030.00316.61
7.4.160.0110.00616.33
7.4.150.0110.00917.40
7.4.140.0080.01517.86
7.4.130.0110.00816.52
7.4.120.0070.01616.55
7.4.110.0120.00616.61
7.4.100.0150.00616.43
7.4.90.0150.00616.51
7.4.80.0070.01419.39
7.4.70.0090.01016.55
7.4.60.0100.00616.51
7.4.50.0000.00716.47
7.4.40.0000.01716.75
7.4.30.0080.01116.53
7.4.00.0130.00615.19
7.3.330.0040.00413.12
7.3.320.0030.00313.31
7.3.310.0000.00716.15
7.3.300.0000.00716.24
7.3.290.0110.00616.29
7.3.280.0050.01116.34
7.3.270.0160.00517.40
7.3.260.0140.01416.56
7.3.250.0090.01016.48
7.3.240.0200.00416.39
7.3.230.0070.01116.48
7.3.210.0030.01416.54
7.3.200.0140.00316.52
7.3.190.0070.01116.39
7.3.180.0090.00616.43
7.3.170.0140.00716.27
7.3.160.0120.00616.55
7.2.330.0060.01216.57
7.2.320.0190.00316.72
7.2.310.0160.00816.82
7.2.300.0100.01016.87
7.2.290.0140.00716.66
7.2.60.0000.01416.80
7.2.00.0060.01019.68
7.1.200.0030.01315.71
7.1.100.0000.01818.26
7.1.70.0060.00617.24
7.1.60.0040.02220.03
7.1.50.0110.00016.96
7.1.00.0070.07322.45
7.0.200.0060.00615.02
7.0.60.0030.08320.04
7.0.50.0030.04017.99
7.0.40.0200.04320.23
7.0.30.0200.04320.06
7.0.20.0200.04720.44
7.0.10.0270.05320.07
7.0.00.0070.07020.16
5.6.280.0000.05021.00
5.6.210.0030.05020.70
5.6.200.0100.04318.16
5.6.190.0000.05020.61
5.6.180.2930.04720.77
5.6.170.0230.04320.55
5.6.160.0000.04320.54
5.6.150.0000.06718.17
5.6.140.0100.08018.28
5.6.130.0070.08318.21
5.6.120.0170.07721.01
5.6.110.0000.09021.01
5.6.100.0030.04320.99
5.6.90.0170.07721.09
5.6.80.0000.04320.49
5.5.350.0030.08720.47
5.5.340.0130.05717.93
5.5.330.0070.09020.27
5.5.320.1570.06020.29
5.5.310.0130.04720.27
5.5.300.0100.04017.92
5.5.290.0100.05318.07
5.5.280.0100.07720.90
5.5.270.0070.04020.63
5.5.260.0030.09020.88
5.5.250.0030.06720.59
5.5.240.0000.08320.23
5.4.450.0930.05719.61
5.4.440.0870.05019.61
5.4.430.0670.06319.73
5.4.420.0930.04719.16
5.4.410.0870.06019.00
5.4.400.0670.06019.26
5.4.390.0630.06719.15
5.4.380.1000.07019.03
5.4.370.1030.05019.14
5.4.360.0870.06018.87
5.4.350.1130.05019.29
5.4.340.0770.05718.88
5.4.320.0800.06719.28
5.4.310.1000.05319.30
5.4.300.1000.05019.30
5.4.290.0970.04719.15
5.4.280.0800.06319.01
5.4.270.0800.06019.28
5.4.260.0630.06019.21
5.4.250.0800.06019.22
5.4.240.0770.04718.84
5.4.230.0930.05019.22
5.4.220.0730.07319.15
5.4.210.1000.05719.03
5.4.200.0870.06316.80
5.4.190.0730.06719.09
5.4.180.0870.04319.02
5.4.170.0800.06319.13
5.4.160.0930.06718.97
5.4.150.0830.04318.96
5.4.140.0700.05716.57
5.4.130.0730.05316.72
5.4.120.0770.04716.72
5.4.110.0700.05316.56
5.4.100.0700.04716.55
5.4.90.0800.05016.44
5.4.80.0670.05316.31
5.4.70.0300.06316.36
5.4.60.0300.05316.26
5.4.50.0000.04316.56
5.4.40.0330.05016.55
5.4.30.0070.04716.51
5.4.20.0330.06716.51
5.4.10.0270.04016.43

preferences:
55.17 ms | 404 KiB | 6 Q