3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function deleteMe(&$obj) { $obj = (unset) $obj; } } $foo = new Foo(); var_dump($foo); $foo->deleteMe($foo); var_dump($foo); debug_zval_dump($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)
8.3.60.0070.01118.43
8.3.50.0130.00721.20
8.3.40.0090.00618.79
8.3.30.0130.00018.84
8.3.20.0040.00420.21
8.3.10.0040.00422.05
8.3.00.0040.00422.43
8.2.180.0070.00716.37
8.2.170.0100.00322.96
8.2.160.0140.00018.96
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0070.01026.16
8.2.120.0030.00519.40
8.2.110.0080.00321.09
8.2.100.0110.00017.72
8.2.90.0030.00617.77
8.2.80.0040.00417.97
8.2.70.0040.00417.38
8.2.60.0000.00817.80
8.2.50.0030.00518.10
8.2.40.0030.00520.59
8.2.30.0050.00217.90
8.2.20.0040.00417.50
8.2.10.0040.00417.60
8.2.00.0000.01417.41
8.1.280.0040.01125.92
8.1.270.0040.00422.18
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0100.00722.27
8.1.230.0040.00820.95
8.1.220.0050.00217.74
8.1.210.0050.00319.81
8.1.200.0030.00617.22
8.1.190.0040.00417.53
8.1.180.0000.00818.10
8.1.170.0060.00318.59
8.1.160.0030.00522.25
8.1.150.0000.00818.49
8.1.140.0070.00017.19
8.1.130.0000.00717.70
8.1.120.0000.00817.32
8.1.110.0000.00817.29
8.1.100.0030.00317.35
8.1.90.0000.00717.28
8.1.80.0040.00417.20
8.1.70.0040.00417.30
8.1.60.0040.00417.43
8.1.50.0000.00817.27
8.1.40.0040.00417.27
8.1.30.0040.00417.32
8.1.20.0030.00517.52
8.1.10.0000.00717.29
8.1.00.0050.00317.36
8.0.300.0000.00720.07
8.0.290.0040.00416.63
8.0.280.0080.00018.21
8.0.270.0000.00717.00
8.0.260.0040.00416.65
8.0.250.0030.00316.86
8.0.240.0050.00316.86
8.0.230.0050.00316.77
8.0.220.0000.00616.84
8.0.210.0000.00716.86
8.0.200.0000.00816.78
8.0.190.0000.00816.91
8.0.180.0030.00316.80
8.0.170.0000.00816.86
8.0.160.0070.00016.80
8.0.150.0030.00316.84
8.0.140.0020.00516.78
8.0.130.0000.00813.13
8.0.120.0040.00416.77
8.0.110.0000.00816.64
8.0.100.0000.00716.80
8.0.90.0050.00216.80
8.0.80.0070.01016.81
8.0.70.0000.00716.80
8.0.60.0000.00716.71
8.0.50.0020.00516.77
8.0.30.0090.00917.03
8.0.20.0090.00917.40
8.0.10.0040.00416.75
8.0.00.0110.00716.63
7.4.330.0050.00016.84
7.4.320.0030.00316.59
7.4.300.0030.00316.59
7.4.290.0030.00316.43
7.4.280.0060.00016.46
7.4.270.0060.00016.42
7.4.260.0000.00716.59
7.4.250.0040.00416.60
7.4.240.0050.00216.58
7.4.230.0000.00716.62
7.4.220.0060.01316.70
7.4.210.0060.01016.57
7.4.200.0040.00416.49
7.4.190.0040.00416.67
7.4.160.0040.01316.34
7.4.150.0070.01017.40
7.4.140.0130.00517.86
7.4.130.0100.00916.43
7.4.120.0070.01116.47
7.4.110.0060.01216.45
7.4.100.0120.00616.58
7.4.90.0170.00016.55
7.4.80.0070.01119.39
7.4.70.0160.00716.47
7.4.60.0090.01416.43
7.4.50.0040.00416.42
7.4.40.0070.00722.77
7.4.30.0130.00316.58
7.4.00.0140.00314.97
7.3.330.0000.00513.10
7.3.320.0060.00013.25
7.3.310.0030.00316.08
7.3.300.0030.00316.24
7.3.290.0000.01416.28
7.3.280.0100.00916.29
7.3.270.0110.00517.40
7.3.260.0100.01016.50
7.3.250.0120.00616.35
7.3.240.0030.01416.31
7.3.230.0100.01016.39
7.3.210.0110.00716.29
7.3.200.0110.00519.39
7.3.190.0120.00916.24
7.3.180.0110.00616.57
7.3.170.0100.00616.34
7.3.160.0030.01316.30
7.3.120.0030.01314.59
7.2.330.0070.01116.72
7.2.320.0070.01016.35
7.2.310.0080.00816.41
7.2.300.0090.00916.82
7.2.290.0110.00916.72
7.2.60.0030.00916.59
7.2.00.0060.00919.43
7.1.200.0040.00815.69
7.1.100.0220.01117.79
7.1.70.0030.00917.09
7.1.60.0100.01319.82
7.1.50.0100.01416.72
7.1.00.0030.03322.33
7.0.200.0030.00316.74
7.0.140.0130.06021.92
7.0.60.0030.09019.77
7.0.50.0100.08017.87
7.0.40.0030.06720.03
7.0.30.0300.07720.23
7.0.20.0230.03320.06
7.0.10.0070.08720.33
7.0.00.0030.04320.06
5.6.280.0000.07321.16
5.6.210.0130.05720.63
5.6.200.0000.05318.16
5.6.190.0070.09320.51
5.6.180.0270.04320.39
5.6.170.0200.04320.50
5.6.160.0000.09320.43
5.6.150.0070.07718.14
5.6.140.0070.06318.18
5.6.130.0170.04318.13
5.6.120.0130.04720.99
5.6.110.0100.06721.01
5.6.100.0070.08721.14
5.6.90.0030.04720.98
5.6.80.0070.04020.52
5.5.350.0300.06320.29
5.5.340.0070.05017.95
5.5.330.0130.07720.40
5.5.320.0300.06320.33
5.5.310.0300.07720.34
5.5.300.0070.07017.97
5.5.290.0030.04318.01
5.5.280.0130.07720.86
5.5.270.0100.05020.78
5.5.260.0030.06020.80
5.5.250.0070.04020.68
5.5.240.0130.07020.28
5.4.450.0530.04319.55
5.4.440.0770.05319.46
5.4.430.0070.06319.55
5.4.420.0300.07719.50
5.4.410.0130.05319.27
5.4.400.1170.07318.63
5.4.390.0830.06718.75
5.4.380.0200.06318.54
5.4.370.0200.04718.50
5.4.360.0230.04318.59
5.4.350.0170.05318.50
5.4.340.0100.05718.81
5.4.320.0050.03712.50
5.4.310.0040.04512.50
5.4.300.0070.03312.50
5.4.290.0070.03712.50
5.4.280.0080.03412.39
5.4.270.0030.04312.39
5.4.260.0130.05318.57
5.4.250.0100.07018.89
5.4.240.0100.05018.87
5.4.230.0070.06018.86
5.4.220.0100.05018.70
5.4.210.0100.05018.95
5.4.200.0030.05318.98
5.4.190.0130.06318.87
5.4.180.0070.05018.93
5.4.170.0030.05318.73
5.4.160.0000.05718.79
5.4.150.0070.05318.79
5.4.140.0070.05316.58
5.4.130.0130.04316.42
5.4.120.0130.04316.50
5.4.110.0100.05016.30
5.4.100.0030.05316.50
5.4.90.0070.05016.47
5.4.80.0130.06016.30
5.4.70.0100.07716.38
5.4.60.0170.04716.32
5.4.50.0100.04316.38
5.4.40.0070.04716.34
5.4.30.0100.04316.49
5.4.20.0170.04316.30
5.4.10.0200.05016.29
5.4.00.0100.05015.98
5.3.290.0030.04212.80
5.3.280.0170.04014.56
5.3.270.0130.05714.74
5.3.260.0030.05314.50
5.3.250.0100.05014.57
5.3.240.0100.04714.68
5.3.230.0070.06714.42
5.3.220.0100.07314.56
5.3.210.0070.05314.39
5.3.200.0170.06714.64
5.3.190.0030.05714.63
5.3.180.0170.04014.54
5.3.170.0200.05314.55
5.3.160.0270.05014.64
5.3.150.0170.06714.52
5.3.140.0000.05714.53
5.3.130.0170.04314.61
5.3.120.0230.06314.55
5.3.110.0130.05314.51
5.3.100.0100.05713.93
5.3.90.0070.05013.91
5.3.80.0100.05313.92
5.3.70.0030.07014.03
5.3.60.0000.05314.06
5.3.50.0030.05713.92
5.3.40.0070.07714.13
5.3.30.0070.04713.91
5.3.20.0200.03313.78
5.3.10.0070.05313.55
5.3.00.0070.05013.70
5.2.170.0070.04011.23
5.2.160.0130.03311.21
5.2.150.0100.04711.15
5.2.140.0030.04311.37
5.2.130.0000.04311.16
5.2.120.0070.04311.26
5.2.110.0100.03311.28
5.2.100.0130.04011.28
5.2.90.0000.06311.18
5.2.80.0170.03310.92
5.2.70.0100.05311.25
5.2.60.0100.05311.13
5.2.50.0070.04311.11
5.2.40.0130.03311.08
5.2.30.0070.04710.88
5.2.20.0130.04710.91
5.2.10.0130.03310.70
5.2.00.0070.05710.80
5.1.60.0030.03310.20
5.1.50.0030.03710.05
5.1.40.0100.03310.05
5.1.30.0070.03310.50
5.1.20.0100.04310.44
5.1.10.0100.03010.26
5.1.00.0000.04010.14
5.0.50.0070.0278.54
5.0.40.0070.0238.47
5.0.30.0100.0538.44
5.0.20.0030.0408.39
5.0.10.0030.0308.23
5.0.00.0100.0508.21
4.4.90.0000.0236.67
4.4.80.0070.0176.67
4.4.70.0070.0176.67
4.4.60.0030.0306.67
4.4.50.0070.0276.67
4.4.40.0000.0476.67
4.4.30.0030.0236.67
4.4.20.0000.0236.67
4.4.10.0130.0206.67
4.4.00.0030.0436.67
4.3.110.0000.0236.67
4.3.100.0030.0236.67
4.3.90.0070.0176.67
4.3.80.0000.0336.67
4.3.70.0000.0236.67
4.3.60.0070.0176.67
4.3.50.0000.0336.67
4.3.40.0070.0336.67
4.3.30.0070.0206.67
4.3.20.0030.0206.67
4.3.10.0100.0206.67
4.3.00.0100.0207.63

preferences:
49.3 ms | 401 KiB | 5 Q