3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $hello; public function deleteMe(&$obj) { $obj = (unset) $obj; unset($obj); } public function hello() { echo 'hello from foo'; } public function __unset($unset) { echo 'I been called'; } } $foo = new Foo(); var_dump($foo); $foo->deleteMe($foo); var_dump($foo);

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)
8.3.60.0120.00318.43
8.3.50.0050.01221.92
8.3.40.0120.00318.55
8.3.30.0100.00719.04
8.3.20.0040.00420.34
8.3.10.0040.00422.14
8.3.00.0000.00722.46
8.2.180.0110.00416.63
8.2.170.0090.00622.96
8.2.160.0110.00419.15
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0030.01426.16
8.2.120.0000.00819.54
8.2.110.0060.00320.30
8.2.100.0110.00017.59
8.2.90.0000.00917.50
8.2.80.0040.00417.97
8.2.70.0000.00817.93
8.2.60.0000.00717.92
8.2.50.0000.00818.10
8.2.40.0040.00420.44
8.2.30.0000.00717.92
8.2.20.0000.00817.52
8.2.10.0020.00517.56
8.2.00.0040.00417.34
8.1.280.0150.00025.92
8.1.270.0040.00422.24
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0030.00623.88
8.1.230.0100.00319.17
8.1.220.0060.00317.74
8.1.210.0030.00618.77
8.1.200.0060.00317.23
8.1.190.0080.00318.76
8.1.180.0080.00018.10
8.1.170.0040.00418.66
8.1.160.0080.00022.18
8.1.150.0000.00718.50
8.1.140.0000.00817.32
8.1.130.0030.00317.66
8.1.120.0000.00717.23
8.1.110.0040.00417.32
8.1.100.0030.00317.28
8.1.90.0080.00017.27
8.1.80.0000.00817.36
8.1.70.0030.00317.20
8.1.60.0000.00917.43
8.1.50.0020.00517.45
8.1.40.0000.00817.29
8.1.30.0040.00417.49
8.1.20.0080.00017.57
8.1.10.0060.00317.34
8.1.00.0050.00217.36
8.0.300.0050.00519.52
8.0.290.0060.00316.63
8.0.280.0040.00418.32
8.0.270.0030.00317.00
8.0.260.0040.00416.71
8.0.250.0070.00016.87
8.0.240.0000.00916.85
8.0.230.0000.00616.86
8.0.220.0030.00316.82
8.0.210.0050.00216.77
8.0.200.0030.00316.89
8.0.190.0000.00816.77
8.0.180.0000.00716.77
8.0.170.0060.00316.83
8.0.160.0040.00416.80
8.0.150.0030.00516.83
8.0.140.0040.00416.72
8.0.130.0000.00713.29
8.0.120.0050.00316.77
8.0.110.0060.00316.78
8.0.100.0070.00016.85
8.0.90.0000.00716.70
8.0.80.0090.01016.79
8.0.70.0040.00416.67
8.0.60.0050.00316.80
8.0.50.0030.00416.86
8.0.30.0130.00917.00
8.0.20.0140.00517.40
8.0.10.0000.00716.99
8.0.00.0110.00716.58
7.4.330.0000.00515.01
7.4.320.0030.00316.60
7.4.300.0000.00716.47
7.4.290.0030.00316.40
7.4.280.0030.00316.39
7.4.270.0030.00316.53
7.4.260.0050.00216.59
7.4.250.0060.00316.44
7.4.240.0020.00516.52
7.4.230.0050.00316.62
7.4.220.0190.00316.61
7.4.210.0060.01016.54
7.4.200.0030.00316.44
7.4.190.0040.00416.72
7.4.160.0060.01216.68
7.4.150.0080.00917.40
7.4.140.0150.01117.86
7.4.130.0100.00816.50
7.4.120.0070.01116.47
7.4.110.0170.00016.63
7.4.100.0070.01416.52
7.4.90.0120.00616.48
7.4.80.0060.01219.39
7.4.70.0100.01116.39
7.4.60.0090.00816.32
7.4.50.0030.00516.37
7.4.40.0040.00822.77
7.4.30.0060.01016.66
7.4.00.0120.00414.84
7.3.330.0030.00213.16
7.3.320.0050.00013.36
7.3.310.0070.00016.35
7.3.300.0070.00016.33
7.3.290.0030.01016.29
7.3.280.0080.00816.31
7.3.270.0090.01517.40
7.3.260.0060.00916.41
7.3.250.0100.01316.31
7.3.240.0110.00516.28
7.3.230.0090.00916.39
7.3.210.0100.00716.51
7.3.200.0060.00919.39
7.3.190.0060.01516.27
7.3.180.0180.00016.39
7.3.170.0070.01016.59
7.3.160.0090.00616.32
7.3.120.0100.00614.68
7.2.330.0190.00016.81
7.2.320.0060.01116.84
7.2.310.0030.01316.80
7.2.300.0070.01116.65
7.2.290.0090.00616.71
7.2.60.0100.00616.52
7.2.00.0000.01319.36
7.1.200.0040.01215.63
7.1.100.0230.01217.19
7.1.70.0120.00317.11
7.1.60.0160.00719.82
7.1.50.0100.01017.04
7.1.00.0000.03722.44
7.0.200.0030.00616.41
7.0.140.0000.07722.07
7.0.60.0030.08720.05
7.0.50.0030.06017.84
7.0.40.0170.08320.18
7.0.30.0330.03320.10
7.0.20.0270.04320.30
7.0.10.0270.04020.33
7.0.00.0100.04720.19
5.6.280.0100.06321.03
5.6.210.0030.08320.56
5.6.200.0100.04018.19
5.6.190.0000.05020.55
5.6.180.3130.04020.57
5.6.170.0270.04020.39
5.6.160.0030.06720.57
5.6.150.0100.04318.27
5.6.140.0130.06718.11
5.6.130.0000.04718.28
5.6.120.0200.07021.02
5.6.110.0000.07721.12
5.6.100.0130.04721.00
5.6.90.0030.08721.11
5.6.80.0100.07720.45
5.6.70.0170.05320.50
5.5.350.0000.07720.45
5.5.340.0030.05017.99
5.5.330.0100.07020.35
5.5.320.0270.07720.20
5.5.310.0370.06720.41
5.5.300.0030.03717.98
5.5.290.0030.05717.98
5.5.280.0130.05020.88
5.5.270.0130.07020.87
5.5.260.0130.07720.77
5.5.250.0070.04320.47
5.5.240.0070.08320.25
5.4.450.0730.05719.59
5.4.440.0730.05319.17
5.4.430.0830.05319.61
5.4.420.0170.04719.62
5.4.410.0670.05719.39
5.4.400.1100.06718.79
5.4.390.4070.06018.56
5.4.380.0330.04718.64
5.4.370.0170.05018.76
5.4.360.0100.05318.50
5.4.350.0230.04718.59
5.4.340.0170.05018.47
5.4.320.0040.03712.50
5.4.310.0070.03812.50
5.4.300.0070.03812.50
5.4.290.0060.03912.50
5.4.280.0060.03512.40
5.4.270.0080.03812.40
5.4.260.0030.06019.06
5.4.250.0100.05318.95
5.4.240.0130.05318.96
5.4.230.0130.04718.74
5.4.220.0170.04718.73
5.4.210.0030.08318.76
5.4.200.0030.05318.86
5.4.190.0170.04318.61
5.4.180.0100.07018.61
5.4.170.0130.07718.88
5.4.160.0130.07318.74
5.4.150.0100.05018.75
5.4.140.0100.06016.56
5.4.130.0030.05016.55
5.4.120.0030.05316.31
5.4.110.0070.05016.51
5.4.100.0070.05016.30
5.4.90.0030.05016.45
5.4.80.0030.05316.31
5.4.70.0000.06016.46
5.4.60.0130.04016.30
5.4.50.0030.05016.42
5.4.40.0070.05316.63
5.4.30.0100.04716.43
5.4.20.0100.04716.33
5.4.10.0100.05016.34
5.4.00.0100.04715.76
5.3.290.0040.04112.80
5.3.280.0000.05714.68
5.3.270.0070.06314.75
5.3.260.0030.06314.67
5.3.250.0070.07014.69
5.3.240.0030.05314.69
5.3.230.0000.05714.71
5.3.220.0000.05714.73
5.3.210.0130.04314.73
5.3.200.0000.05714.70
5.3.190.0070.06314.65
5.3.180.0100.05314.57
5.3.170.0100.04714.56
5.3.160.0200.05714.53
5.3.150.0130.04314.73
5.3.140.0100.05014.57
5.3.130.0230.06314.73
5.3.120.0030.07014.63
5.3.110.0030.06014.71
5.3.100.0070.05014.12
5.3.90.0030.05714.18
5.3.80.0130.04314.24
5.3.70.0030.05314.02
5.3.60.0030.07314.08
5.3.50.0000.05713.94
5.3.40.0000.05714.11
5.3.30.0000.05713.98
5.3.20.0000.07313.67
5.3.10.0200.08313.73
5.3.00.0100.07313.70
5.2.170.0070.04311.31
5.2.160.0100.03311.15
5.2.150.0030.05311.21
5.2.140.0070.04311.21
5.2.130.0070.04011.09
5.2.120.0100.03711.18
5.2.110.0030.04311.01
5.2.100.0100.05711.20
5.2.90.0130.03311.27
5.2.80.0070.04010.92
5.2.70.0000.06711.17
5.2.60.0000.05011.27
5.2.50.0000.05011.09
5.2.40.0100.03311.00
5.2.30.0030.04311.14
5.2.20.0030.04011.02
5.2.10.0070.05010.93
5.2.00.0030.04010.79
5.1.60.0070.0339.99
5.1.50.0070.03310.07
5.1.40.0070.0379.82
5.1.30.0030.05310.56
5.1.20.0030.04010.43
5.1.10.0000.03710.13
5.1.00.0100.03310.06
5.0.50.0030.0308.75
5.0.40.0030.0278.50
5.0.30.0000.0438.27
5.0.20.0030.0278.15
5.0.10.0030.0278.41
5.0.00.0070.0508.08
4.4.90.0100.0207.53
4.4.80.0070.0237.53
4.4.70.0070.0177.53
4.4.60.0000.0237.53
4.4.50.0000.0237.53
4.4.40.0070.0407.53
4.4.30.0000.0237.53
4.4.20.0000.0237.53
4.4.10.0000.0237.53
4.4.00.0030.0437.53
4.3.110.0070.0207.53
4.3.100.0030.0207.53
4.3.90.0000.0237.53
4.3.80.0130.0207.53
4.3.70.0000.0237.53
4.3.60.0070.0177.53
4.3.50.0030.0237.53
4.3.40.0100.0237.53
4.3.30.0000.0237.53
4.3.20.0000.0237.53
4.3.10.0030.0177.53
4.3.00.0030.0207.07

preferences:
41.16 ms | 401 KiB | 5 Q