3v4l.org

run code in 300+ PHP versions simultaneously
<?php class bad { private $_private = array(); public function __construct() { $this->_private[] = 'oh noes'; } public function __destruct() { //echo "bad::destructor\n"; global $bar; $bar = $this->_private; } } $foo = new stdclass; $foo->foo = $foo; $foo->bad = new bad; print_r($foo); gc_disable(); for ($i=0; $i < 10; $i++) { $deep_clone = clone $foo; gc_collect_cycles(); var_dump($i); }

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
8.3.60.0070.01018.56
8.3.50.0080.01121.20
8.3.40.0070.00718.58
8.3.30.0100.00320.35
8.3.20.0050.00320.32
8.3.10.0040.00421.00
8.3.00.0000.00822.27
8.2.180.0070.00716.75
8.2.170.0060.00922.96
8.2.160.0100.00321.95
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00320.75
8.2.110.0070.00322.26
8.2.100.0090.00317.84
8.2.90.0080.00019.05
8.2.80.0040.00417.97
8.2.70.0050.00317.63
8.2.60.0040.00417.93
8.2.50.0000.00818.10
8.2.40.0000.00720.64
8.2.30.0000.00818.04
8.2.20.0050.00317.72
8.2.10.0000.00717.62
8.2.00.0030.00917.55
8.1.280.0040.01125.92
8.1.270.0040.00423.99
8.1.260.0030.00526.35
8.1.250.0000.00928.09
8.1.240.0070.01121.84
8.1.230.0080.00317.89
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0040.00417.36
8.1.190.0030.00617.10
8.1.180.0030.00618.10
8.1.170.0040.00418.50
8.1.160.0000.00722.17
8.1.150.0050.00318.57
8.1.140.0000.00817.30
8.1.130.0000.00717.92
8.1.120.0060.00617.30
8.1.110.0050.00217.28
8.1.100.0060.00317.41
8.1.90.0000.00717.41
8.1.80.0000.00717.40
8.1.70.0070.00017.41
8.1.60.0040.00417.54
8.1.50.0000.00817.52
8.1.40.0000.00817.56
8.1.30.0000.00817.66
8.1.20.0000.00817.69
8.1.10.0040.00417.44
8.1.00.0040.00417.28
8.0.300.0070.00018.77
8.0.290.0030.00616.63
8.0.280.0070.00018.33
8.0.270.0070.00017.19
8.0.260.0030.00316.69
8.0.250.0070.00016.88
8.0.240.0080.00016.95
8.0.230.0040.00716.84
8.0.220.0000.00716.84
8.0.210.0000.00816.83
8.0.200.0000.00616.84
8.0.190.0080.00016.81
8.0.180.0000.00816.86
8.0.170.0030.00516.75
8.0.160.0000.00716.70
8.0.150.0040.00416.75
8.0.140.0050.00216.77
8.0.130.0060.00013.30
8.0.120.0000.00816.77
8.0.110.0000.00816.86
8.0.100.0050.00316.62
8.0.90.0000.00716.71
8.0.80.0120.00316.78
8.0.70.0040.00316.86
8.0.60.0000.00716.64
8.0.50.0070.00016.77
8.0.30.0130.00517.09
8.0.20.0060.01217.40
8.0.10.0040.00416.88
8.0.00.0090.00916.76
7.4.330.0000.00516.81
7.4.320.0030.00316.34
7.4.300.0030.00316.47
7.4.290.0030.00316.53
7.4.280.0030.00316.50
7.4.270.0030.00516.48
7.4.260.0030.00313.29
7.4.250.0040.00416.47
7.4.240.0020.00616.56
7.4.230.0000.00716.55
7.4.220.0100.01016.70
7.4.210.0070.01016.58
7.4.200.0000.00716.49
7.4.190.0000.00716.56
7.4.160.0080.00816.45
7.4.150.0070.01317.40
7.4.140.0110.00617.86
7.4.130.0080.00816.45
7.4.120.0120.00616.41
7.4.110.0050.01316.41
7.4.100.0150.00616.51
7.4.90.0130.00416.46
7.4.80.0130.00519.39
7.4.70.0070.01016.53
7.4.60.0120.00616.32
7.4.50.0030.00716.18
7.4.40.0070.00722.77
7.4.30.0110.00716.37
7.4.00.0120.00314.82
7.3.330.0030.00313.29
7.3.320.0030.00313.16
7.3.310.0030.00316.19
7.3.300.0000.00716.18
7.3.290.0090.00616.28
7.3.280.0120.00816.30
7.3.270.0090.00917.40
7.3.260.0180.00318.24
7.3.250.0130.00516.51
7.3.240.0140.00316.42
7.3.230.0120.00616.50
7.3.210.0100.00716.40
7.3.200.0070.01419.39
7.3.190.0080.00816.51
7.3.180.0060.00916.59
7.3.170.0120.00916.59
7.3.160.0090.00916.37
7.3.120.0060.00614.63
7.2.330.0060.01316.73
7.2.320.0100.01016.50
7.2.310.0060.01816.63
7.2.300.0100.00616.45
7.2.290.0140.00316.46
7.2.60.0100.00616.78
7.2.00.0060.00919.46
7.1.200.0030.00715.93
7.1.100.0070.00717.95
7.1.70.0080.00617.27
7.1.60.0060.00617.37
7.1.50.0000.01116.97
7.1.00.0030.03322.27
7.0.200.0070.01016.87
7.0.140.0000.07022.18
7.0.70.4900.04019.88
7.0.60.0070.08019.93
7.0.50.0100.08017.97
7.0.40.0030.08720.18
7.0.30.0730.06320.10
7.0.20.0230.04320.26
7.0.10.0370.04320.20
7.0.00.0070.04320.06
5.6.280.0100.06721.13
5.6.210.0070.04020.53
5.6.200.0030.05718.27
5.6.190.0030.04720.41
5.6.180.0000.08320.59
5.6.170.0230.08020.53
5.6.160.0030.04320.54
5.6.150.0200.03318.18
5.6.140.0070.08018.15
5.6.130.0070.08718.17
5.6.120.0030.04021.05
5.6.110.0070.07321.05
5.6.100.0170.07721.09
5.6.90.0070.08721.08
5.6.80.0130.07020.49
5.6.70.0270.06720.45
5.5.350.0030.07720.38
5.5.340.0230.05317.95
5.5.330.0100.04320.13
5.5.320.0030.04320.29
5.5.310.0370.06320.35
5.5.300.0030.04017.94
5.5.290.0030.09017.97
5.5.280.0070.03720.85
5.5.270.0070.05320.65
5.5.260.0100.05020.85
5.5.250.0030.08320.69
5.5.240.0070.08020.28
5.4.450.0100.04319.51
5.4.440.0170.03719.64
5.4.430.0170.04019.33
5.4.420.0170.04319.41
5.4.410.0230.06019.14
5.4.400.0130.03719.09
5.4.390.0130.03719.22
5.4.380.0170.03319.09
5.4.370.0170.03319.13
5.4.360.0170.03318.88
5.4.350.0170.04719.15
5.4.340.0230.05019.32
5.4.320.0300.05719.10
5.4.310.0230.07018.95
5.4.300.0200.04718.87
5.4.290.0130.06019.24
5.4.280.0230.07719.21
5.4.270.0270.05718.99
5.4.260.0200.07719.16
5.4.250.0230.05319.15
5.4.240.0300.04318.84
5.4.230.0200.07319.23
5.4.220.0270.07719.21
5.4.210.0270.06719.13
5.4.200.0230.03719.07
5.4.190.0270.04718.84
5.4.180.0200.06319.18
5.4.170.0230.07018.95
5.4.160.0270.04018.96
5.4.150.0130.04319.22
5.4.140.0200.05316.52
5.4.130.0200.05016.28
5.4.120.0270.03716.32
5.4.110.0230.07016.48
5.4.100.0300.03016.61
5.4.90.0200.06716.28
5.4.80.0270.03716.25
5.4.70.0200.04316.25
5.4.60.0100.05016.56
5.4.50.0200.05716.37
5.4.40.0230.05016.35
5.4.30.0270.06716.37
5.4.20.0170.07716.48
5.4.10.0170.05016.48
5.4.00.0230.06715.80
5.3.290.0270.07314.57
5.3.280.0200.05014.57
5.3.270.0270.07014.53
5.3.260.0230.04014.59
5.3.250.0170.05714.58
5.3.240.0200.08314.61
5.3.230.0230.05314.62
5.3.220.0300.06714.62
5.3.210.0170.04714.73
5.3.200.0230.07714.54
5.3.190.0170.05314.57
5.3.180.0300.06714.59
5.3.170.0200.04714.58
5.3.160.0300.06314.54
5.3.150.0170.05014.57
5.3.140.0270.05014.58
5.3.130.0130.08014.46
5.3.120.0370.07714.56
5.3.110.0230.07314.45
5.3.100.0200.07314.26
5.3.90.0230.04313.95
5.3.80.0200.04014.02
5.3.70.0200.03714.03
5.3.60.0300.06313.91
5.3.50.0170.05314.00
5.3.40.0300.07013.88
5.3.30.0230.05013.98
5.3.20.0330.05013.72
5.3.10.0230.07013.57
5.3.00.0270.04713.57
5.2.170.0170.06012.04
5.2.160.0200.05712.04
5.2.150.0200.05712.04
5.2.140.0200.06012.04
5.2.130.0230.07312.04
5.2.120.0230.05012.04
5.2.110.0130.03312.04
5.2.100.0270.05312.04
5.2.90.0230.05712.04
5.2.80.0170.06012.04
5.2.70.0230.05312.04
5.2.60.0270.03712.04
5.2.50.0170.06012.04
5.2.40.0130.06012.04
5.2.30.0270.03012.04
5.2.20.0130.06312.04
5.2.10.0170.04312.04
5.2.00.0270.05012.04
5.1.60.0170.04312.04
5.1.50.0230.04712.04
5.1.40.0130.04012.04
5.1.30.0130.03712.04
5.1.20.0200.05012.04
5.1.10.0170.03712.04
5.1.00.0200.03312.04
5.0.50.0030.05012.04
5.0.40.0100.04312.04
5.0.30.0100.06712.04
5.0.20.0100.02712.04
5.0.10.0100.03012.04
5.0.00.0030.04712.04
4.4.90.0170.02312.04
4.4.80.0070.03312.04
4.4.70.0070.04012.04
4.4.60.0000.02012.04
4.4.50.0030.02312.04
4.4.40.0170.04312.04
4.4.30.0070.03712.04
4.4.20.0070.02712.04
4.4.10.0030.03312.04
4.4.00.0100.04312.04
4.3.110.0100.03312.04
4.3.100.0070.03312.04
4.3.90.0030.02712.04
4.3.80.0100.05012.04
4.3.70.0100.02012.04
4.3.60.0100.02012.04
4.3.50.0070.03712.04
4.3.40.0070.05012.04
4.3.30.0030.03312.04
4.3.20.0070.03712.04
4.3.10.0030.03012.04
4.3.00.0000.03712.04

preferences:
37.72 ms | 401 KiB | 5 Q