3v4l.org

run code in 300+ PHP versions simultaneously
<?php //Source: https://bugs.php.net/bug.php?id=64896 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 < 1000; $i++) { //$deep_clone = unserialize(serialize($foo)); $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)
8.3.60.0130.01018.31
8.3.50.0280.00821.94
8.3.40.0140.00318.76
8.3.30.0180.00318.68
8.3.20.0090.00020.16
8.3.10.0030.00623.78
8.3.00.0030.00620.80
8.2.180.0100.00716.38
8.2.170.0130.00622.96
8.2.160.0100.00720.38
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0030.00626.16
8.2.120.0030.00619.23
8.2.110.0040.00722.14
8.2.100.0090.00317.91
8.2.90.0080.00019.13
8.2.80.0030.00617.97
8.2.70.0130.00017.50
8.2.60.0030.00617.93
8.2.50.0000.01218.07
8.2.40.0060.00319.95
8.2.30.0050.00518.23
8.2.20.0000.00817.67
8.2.10.0040.00418.04
8.2.00.0040.00417.77
8.1.280.0120.00325.92
8.1.270.0070.00423.96
8.1.260.0000.01026.35
8.1.250.0080.00028.09
8.1.240.0060.00323.98
8.1.230.0040.00819.01
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0070.00317.23
8.1.190.0060.00317.13
8.1.180.0060.00318.10
8.1.170.0040.00418.50
8.1.160.0040.00421.82
8.1.150.0030.00518.49
8.1.140.0040.00417.40
8.1.130.0050.00317.87
8.1.120.0030.00617.37
8.1.110.0030.00617.26
8.1.100.0050.00317.33
8.1.90.0000.00817.29
8.1.80.0040.00417.36
8.1.70.0070.00017.36
8.1.60.0030.00617.60
8.1.50.0060.00317.48
8.1.40.0000.01317.49
8.1.30.0030.00617.66
8.1.20.0080.00017.64
8.1.10.0040.00417.49
8.1.00.0040.00417.50
8.0.300.0040.00418.77
8.0.290.0050.00516.63
8.0.280.0040.00418.37
8.0.270.0040.00417.18
8.0.260.0000.00917.18
8.0.250.0000.00716.93
8.0.240.0000.00816.77
8.0.230.0040.00416.88
8.0.220.0040.00416.84
8.0.210.0040.00416.81
8.0.200.0000.00716.86
8.0.190.0000.00816.85
8.0.180.0030.00616.84
8.0.170.0090.00016.82
8.0.160.0050.00316.73
8.0.150.0000.00816.73
8.0.140.0030.00616.75
8.0.130.0000.00713.28
8.0.120.0030.00516.68
8.0.110.0040.00416.87
8.0.100.0050.00316.85
8.0.90.0080.00016.67
8.0.80.0090.00916.76
8.0.70.0000.00916.84
8.0.60.0050.00316.93
8.0.50.0000.00816.64
8.0.30.0210.00917.02
8.0.20.0160.01017.40
8.0.10.0050.00316.76
8.0.00.0130.01216.79
7.4.330.0000.00715.00
7.4.320.0000.00816.34
7.4.300.0030.00316.63
7.4.290.0040.00416.58
7.4.280.0040.00416.48
7.4.270.0040.00416.51
7.4.260.0000.00816.50
7.4.250.0030.00616.60
7.4.240.0070.00116.62
7.4.230.0040.00416.66
7.4.220.0140.01016.55
7.4.210.0050.01416.62
7.4.200.0000.00816.59
7.4.160.0200.00816.56
7.4.150.0140.00917.40
7.4.140.0130.01217.86
7.4.130.0140.00916.46
7.4.120.0180.00316.60
7.4.110.0100.01316.59
7.4.100.0090.01516.32
7.4.90.0180.01316.59
7.4.80.0100.01519.39
7.4.70.0170.01316.52
7.4.60.0070.01716.52
7.4.50.0030.00616.27
7.4.40.0110.01116.36
7.4.30.0030.02016.50
7.4.00.0090.00614.79
7.3.330.0030.00313.16
7.3.320.0000.00713.09
7.3.310.0000.00716.30
7.3.300.0050.00316.16
7.3.290.0070.01016.27
7.3.280.0110.01016.25
7.3.270.0100.01417.40
7.3.260.0100.02016.43
7.3.250.0140.00916.49
7.3.240.0140.00816.38
7.3.230.0150.00916.39
7.3.210.0130.00916.15
7.3.200.0080.01219.39
7.3.190.0210.00916.48
7.3.180.0130.00616.58
7.3.170.0130.00716.43
7.3.160.0130.00716.28
7.3.120.0140.00414.87
7.2.330.0090.01316.54
7.2.320.0110.01116.44
7.2.310.0090.01216.67
7.2.300.0190.00316.73
7.2.290.0170.00316.45
7.2.60.0030.01016.81
7.2.00.0030.01319.50
7.1.200.0030.01415.75
7.1.100.0120.00018.17
7.1.70.0070.00717.25
7.1.60.0070.02019.70
7.1.50.0180.01116.92
7.1.00.0070.07722.45
7.0.200.0000.00816.55
7.0.140.0030.07322.09
7.0.100.0070.08719.96
7.0.90.0130.08019.93
7.0.80.0030.05319.87
7.0.70.0100.06019.90
7.0.60.0000.05019.93
7.0.50.0130.04020.34
7.0.40.0200.07320.11
7.0.30.0130.08320.14
7.0.20.0070.05719.95
7.0.10.0070.07320.02
7.0.00.0000.06320.16
5.6.280.0070.07321.16
5.6.250.0070.08320.73
5.6.240.0070.04020.77
5.6.230.0130.07720.51
5.6.220.0070.08320.62
5.6.210.0000.04720.69
5.6.200.0070.08021.05
5.6.190.0030.05321.05
5.6.180.0030.04321.06
5.6.170.0100.08021.02
5.6.160.0130.08021.05
5.6.150.0130.05721.14
5.6.140.0100.07321.00
5.6.130.0130.07321.08
5.6.120.0130.07321.18
5.6.110.0070.05021.11
5.6.100.0100.04321.13
5.6.90.0100.08721.06
5.6.80.0030.03720.42
5.6.70.0130.04020.45
5.6.60.0070.04020.48
5.6.50.0170.07720.32
5.6.40.0030.08720.53
5.6.30.0100.07320.39
5.6.20.0030.05720.41
5.6.10.0030.09320.38
5.6.00.0170.03720.38
5.5.380.0030.04720.33
5.5.370.0170.06720.45
5.5.360.0070.07720.35
5.5.350.0030.05320.43
5.5.340.0070.07320.91
5.5.330.0070.04020.65
5.5.320.0000.09320.93
5.5.310.0000.05720.89
5.5.300.0130.08020.92
5.5.290.0070.08720.76
5.5.280.0200.07020.78
5.5.270.0070.05020.92
5.5.260.0130.07720.63
5.5.250.0100.08320.64
5.5.240.0100.07720.03
5.5.230.0070.06320.25
5.5.220.0030.07720.25
5.5.210.0100.07020.26
5.5.200.0100.07320.26
5.5.190.0130.07020.22
5.5.180.0170.07320.26
5.5.160.0130.07320.18
5.5.150.0070.05720.17
5.5.140.0030.08320.11
5.5.130.0170.07320.18
5.5.120.0130.03720.15
5.5.110.0130.03720.14
5.5.100.0070.07320.10
5.5.90.0130.07720.17
5.5.80.0070.08019.96
5.5.70.0070.04020.16
5.5.60.0130.06020.07
5.5.50.0070.08020.02
5.5.40.0100.05320.11
5.5.30.0100.04320.16
5.5.20.0100.05720.00
5.5.10.0130.07020.02
5.5.00.0170.06720.12
5.4.450.0070.08019.56
5.4.440.0100.04719.23
5.4.430.0070.08319.44
5.4.420.0070.07719.46
5.4.410.0030.09319.32
5.4.400.0070.07719.05
5.4.390.0100.06719.18
5.4.380.0070.05719.21
5.4.370.0070.04319.23
5.4.360.0100.04318.95
5.4.350.0100.08019.03
5.4.340.0130.07319.12
5.4.320.0100.07719.04
5.4.310.0070.08019.13
5.4.300.0100.06719.17
5.4.290.0070.08019.04
5.4.280.0100.04718.94
5.4.270.0100.06319.17
5.4.260.0070.07318.84
5.4.250.0070.07318.90
5.4.240.0100.05719.02
5.4.230.0070.07319.22
5.4.220.0100.06319.04
5.4.210.0070.07718.93
5.4.200.0070.06019.04
5.4.190.0030.06019.09
5.4.180.0100.06319.08
5.4.170.0070.05018.87
5.4.160.0130.07719.19
5.4.150.0070.06019.21
5.4.140.0070.08016.40
5.4.130.0100.03716.50
5.4.120.0070.07316.48
5.4.110.0130.07316.46
5.4.100.0070.07316.50
5.4.90.0130.06716.47
5.4.80.0070.07316.49
5.4.70.0070.08016.45
5.4.60.0070.07016.41
5.4.50.0030.07716.54
5.4.40.0130.06716.53
5.4.30.0130.06316.46
5.4.20.0030.04716.48
5.4.10.0170.07316.44
5.4.00.0130.05715.86
5.3.290.0030.04014.79
5.3.280.0100.04014.52
5.3.270.0130.07314.54
5.3.260.0300.03014.61
5.3.250.0170.06314.75
5.3.240.0170.05714.56
5.3.230.0000.05014.60
5.3.220.0100.04014.63
5.3.210.0130.06014.56
5.3.200.0130.03714.50
5.3.190.0100.07314.58
5.3.180.0130.06014.56
5.3.170.0100.04314.66
5.3.160.0070.08014.63
5.3.150.0170.04314.60
5.3.140.0030.07014.58
5.3.130.0070.07314.53
5.3.120.0170.07314.61
5.3.110.0030.04714.53
5.3.100.0030.07014.01
5.3.90.0130.07013.95
5.3.80.0000.05714.09
5.3.70.0170.06713.93
5.3.60.0100.05013.98
5.3.50.0170.06013.96
5.3.40.0030.07714.04
5.3.30.0100.07013.83
5.3.20.0000.07713.62
5.3.10.0030.04713.63
5.3.00.0130.05013.56
5.2.170.0000.06711.26
5.2.160.0100.05711.16
5.2.150.0100.05311.20
5.2.140.0030.06711.05
5.2.130.0070.03011.10
5.2.120.0070.05311.25
5.2.110.0030.04011.17
5.2.100.0000.04311.20
5.2.90.0000.03011.14
5.2.80.0030.02710.99
5.2.70.0030.03011.19
5.2.60.0000.03011.14
5.2.50.0000.03010.93
5.2.40.0000.03711.11
5.2.30.0000.03010.98
5.2.20.0030.03010.98
5.2.10.0000.04710.88
5.2.00.0070.03010.78
5.1.60.0000.02710.11
5.1.50.0000.02710.08
5.1.40.0070.03710.10
5.1.30.0070.04710.37
5.1.20.0100.03710.38
5.1.10.0000.02310.14
5.1.00.0030.0409.96
5.0.50.0000.0478.79
5.0.40.0030.0478.79
5.0.30.0000.0638.79
5.0.20.0100.0178.79
5.0.10.0000.0278.79
5.0.00.0030.0308.79
4.4.90.0000.0178.79
4.4.80.0000.0178.79
4.4.70.0000.0178.79
4.4.60.0000.0178.79
4.4.50.0000.0138.79
4.4.40.0000.0238.79
4.4.30.0000.0138.79
4.4.20.0030.0238.79
4.4.10.0030.0178.79
4.4.00.0030.0508.79
4.3.110.0030.0278.79
4.3.100.0030.0278.79
4.3.90.0000.0138.79
4.3.80.0030.0308.79
4.3.70.0030.0178.79
4.3.60.0030.0138.79
4.3.50.0000.0308.79
4.3.40.0000.0238.79
4.3.30.0000.0178.79
4.3.20.0000.0178.79
4.3.10.0030.0208.79
4.3.00.0000.0208.79

preferences:
50.88 ms | 401 KiB | 5 Q