3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); // so only PHP 7 will show up class FooBar { private $x; public function __construct() { var_dump($this); unset($this->x); // I can remove a property! var_dump($this); // It's gone! $this->x = 2; // I can recreate a property! var_dump($this); // The "new" property retains the "old" property's visibilty. Good job. } } $foobar = new Foobar;

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)
8.3.60.0150.00416.63
8.3.50.0060.00918.05
8.3.40.0100.00718.68
8.3.30.0060.00918.54
8.3.20.0070.00020.16
8.3.10.0110.00423.70
8.3.00.0090.00019.25
8.2.180.0110.00416.50
8.2.170.0040.01122.96
8.2.160.0120.00620.46
8.2.150.0200.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0080.00418.63
8.2.110.0090.00019.16
8.2.100.0090.00317.50
8.2.90.0000.00819.09
8.2.80.0030.00517.97
8.2.70.0000.00817.63
8.2.60.0040.00417.91
8.2.50.0030.00518.07
8.2.40.0060.00319.52
8.2.30.0070.00020.62
8.2.20.0030.00717.49
8.2.10.0050.00318.04
8.2.00.0050.00218.00
8.1.280.0070.01125.92
8.1.270.0090.00023.91
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0000.00923.92
8.1.230.0120.00017.53
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0030.00617.36
8.1.190.0000.00917.13
8.1.180.0030.00618.10
8.1.170.0040.00418.47
8.1.160.0000.00721.86
8.1.150.0000.00718.82
8.1.140.0000.00819.45
8.1.130.0030.00317.63
8.1.120.0000.00717.45
8.1.110.0050.00317.44
8.1.100.0000.00817.45
8.1.90.0000.00817.45
8.1.80.0070.00017.39
8.1.70.0000.00817.41
8.1.60.0110.00017.58
8.1.50.0030.00617.47
8.1.40.0000.00817.46
8.1.30.0030.00617.65
8.1.20.0030.00517.58
8.1.10.0040.00417.35
8.1.00.0050.00217.43
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0070.00018.28
8.0.270.0000.00817.09
8.0.260.0000.00617.14
8.0.250.0000.00716.86
8.0.240.0000.00716.78
8.0.230.0030.00416.92
8.0.220.0070.00016.73
8.0.210.0040.00416.80
8.0.200.0000.00616.84
8.0.190.0000.00816.84
8.0.180.0040.00416.90
8.0.170.0040.00416.75
8.0.160.0000.00816.87
8.0.150.0000.00716.84
8.0.140.0000.00716.73
8.0.130.0000.00613.26
8.0.120.0030.00516.83
8.0.110.0040.00416.79
8.0.100.0000.00716.69
8.0.90.0040.00416.69
8.0.80.0090.00916.71
8.0.70.0050.00216.88
8.0.60.0040.00416.64
8.0.50.0000.00716.69
8.0.30.0100.00717.25
8.0.20.0130.01017.40
8.0.10.0000.00716.84
8.0.00.0120.00516.65
7.4.330.0000.00516.67
7.4.320.0060.00016.57
7.4.300.0030.00316.41
7.4.290.0000.00716.58
7.4.280.0030.00616.38
7.4.270.0030.00316.56
7.4.260.0060.00316.62
7.4.250.0030.00716.54
7.4.240.0020.00516.49
7.4.230.0030.00316.50
7.4.220.0150.00916.51
7.4.210.0030.01116.54
7.4.200.0040.00416.24
7.4.160.0090.00616.46
7.4.150.0120.01517.40
7.4.140.0090.01117.86
7.4.130.0130.00516.29
7.4.120.0080.01316.54
7.4.110.0160.00316.47
7.4.100.0180.00416.49
7.4.90.0060.01216.55
7.4.80.0090.01319.39
7.4.70.0100.00716.45
7.4.60.0060.01216.59
7.4.50.0060.01016.36
7.4.40.0120.00616.50
7.4.30.0030.01416.57
7.4.10.0100.01014.79
7.4.00.0070.00914.90
7.3.330.0000.00613.13
7.3.320.0030.00313.11
7.3.310.0030.00316.11
7.3.300.0000.00716.21
7.3.290.0030.00416.19
7.3.280.0060.00916.29
7.3.270.0080.01517.40
7.3.260.0150.00416.47
7.3.250.0120.00716.39
7.3.240.0120.00616.40
7.3.230.0120.00616.59
7.3.210.0190.00916.38
7.3.200.0060.01116.30
7.3.190.0080.00816.27
7.3.180.0100.00716.44
7.3.170.0140.00716.35
7.3.160.0060.00916.58
7.3.130.0100.01014.68
7.3.120.0060.01314.75
7.3.110.0060.01114.63
7.3.100.0070.00714.85
7.3.90.0100.00514.80
7.3.80.0080.00614.80
7.3.70.0090.00314.67
7.3.60.0060.00914.80
7.3.50.0070.00514.80
7.3.40.0030.01014.78
7.3.30.0100.00314.70
7.3.20.0080.00616.60
7.3.10.0090.00716.50
7.3.00.0100.00416.43
7.2.330.0090.00916.79
7.2.320.0090.00916.36
7.2.310.0090.00916.72
7.2.300.0070.01416.52
7.2.290.0060.01016.62
7.2.260.0090.00615.02
7.2.250.0050.01214.86
7.2.240.0070.00715.03
7.2.230.0060.00814.89
7.2.220.0060.00614.88
7.2.210.0080.00615.06
7.2.200.0020.00815.05
7.2.190.0030.01214.91
7.2.180.0040.00914.96
7.2.170.0060.00514.87
7.2.160.0060.00614.50
7.2.150.0070.01016.30
7.2.140.0130.00716.63
7.2.130.0110.00316.73
7.2.120.0040.00916.80
7.2.110.0100.00216.78
7.2.100.0070.01016.69
7.2.90.0080.00816.93
7.2.80.0110.00616.95
7.2.70.0140.00516.77
7.2.60.0040.00916.92
7.2.50.0070.00916.63
7.2.40.0070.01016.87
7.2.30.0030.01216.76
7.2.20.0070.01016.88
7.2.10.0080.00816.78
7.2.00.0060.00917.46
7.1.330.0080.00615.85
7.1.320.0070.00515.58
7.1.310.0060.00615.81
7.1.300.0050.00515.58
7.1.290.0050.00515.81
7.1.280.0090.00315.64
7.1.270.0070.00615.68
7.1.260.0080.00715.64
7.1.250.0070.01015.48
7.1.240.0120.00015.08
7.1.230.0050.00315.70
7.1.220.0030.01315.56
7.1.210.0060.00615.25
7.1.200.0080.00315.71
7.1.190.0030.01015.53
7.1.180.0030.00615.64
7.1.170.0040.01115.49
7.1.160.0100.00315.61
7.1.150.0030.01015.78
7.1.140.0030.01315.21
7.1.130.0070.00715.07
7.1.120.0000.01415.64
7.1.110.0030.00815.47
7.1.100.0060.00616.80
7.1.90.0030.00915.43
7.1.80.0090.00315.22
7.1.70.0050.00916.14
7.1.60.0060.01317.58
7.1.50.0070.00816.34
7.1.40.0040.00815.64
7.1.30.0000.01515.69
7.1.20.0040.00815.48
7.1.10.0000.01215.69
7.1.00.0060.03818.96
7.0.330.0030.00715.13
7.0.320.0040.00415.27
7.0.310.0090.00614.82
7.0.300.0060.00315.00
7.0.290.0000.01215.09
7.0.280.0030.00915.37
7.0.270.0000.01414.78
7.0.260.0090.00315.43
7.0.250.0070.00715.29
7.0.240.0030.01315.52
7.0.230.0120.00015.35
7.0.220.0040.01115.16
7.0.210.0030.01014.76
7.0.200.0050.00416.10
7.0.190.0120.00015.36
7.0.180.0070.00715.34
7.0.170.0030.00615.26
7.0.160.0030.00915.15
7.0.150.0050.00515.43
7.0.140.0030.01215.43
7.0.130.0030.01315.31
7.0.120.0030.01015.14
7.0.110.0030.00715.30
7.0.100.0030.00915.18
7.0.90.0000.01315.31
7.0.80.0080.00515.21
7.0.70.0090.00315.30
7.0.60.0080.01917.65
7.0.50.0070.04316.57
7.0.40.0060.04616.78
7.0.30.0320.03416.53
7.0.20.0260.04316.90
7.0.10.0000.02916.59
7.0.00.0050.04716.77
5.6.400.0040.00814.57
5.6.390.0080.00414.03
5.6.380.0100.00314.05
5.6.370.0030.00913.82
5.6.360.0070.00714.10
5.6.350.0000.01313.87
5.6.340.0000.01014.20
5.6.330.0070.00714.37
5.6.320.0090.00614.23
5.6.310.0060.00614.15
5.6.300.0060.00614.50
5.6.290.0050.00514.11
5.6.280.0050.04017.75
5.6.270.0130.00014.50
5.6.260.0090.00014.17
5.6.250.0110.00713.85
5.6.240.0060.00914.04
5.6.230.0030.01214.26
5.6.220.0040.00714.10
5.6.210.0080.02417.40
5.6.200.0050.02816.01
5.6.190.0050.03017.24
5.6.180.0300.03717.12
5.6.170.0200.04217.34
5.6.160.0100.04517.28
5.6.150.0090.03016.36
5.6.140.0100.02016.19
5.6.130.0100.03216.38
5.6.120.0050.04517.42
5.6.110.0100.04317.66
5.6.100.0060.04817.58
5.6.90.0080.04517.59
5.6.80.0070.04017.24
5.6.70.0090.00314.34
5.6.60.0000.01314.24
5.6.50.0000.00914.23
5.6.40.0000.01114.05
5.6.30.0050.00314.13
5.6.20.0080.00814.05
5.6.10.0060.00614.52
5.6.00.0040.00714.33
5.5.380.0030.01014.31
5.5.370.0040.00814.31
5.5.360.0060.00613.83
5.5.350.0180.03817.40
5.5.340.0070.04016.13
5.5.330.0060.04117.05
5.5.320.0250.02817.10
5.5.310.0120.04617.29
5.5.300.0090.03815.90
5.5.290.0060.04316.24
5.5.280.0140.03717.40
5.5.270.0100.02817.61
5.5.260.0110.03817.58
5.5.250.0050.04517.48
5.5.240.0080.03517.14
5.5.230.0070.00414.16
5.5.220.0030.01014.34
5.5.210.0110.00414.07
5.5.200.0030.01014.30
5.5.190.0030.01214.31
5.5.180.0110.00414.07
5.5.170.0030.01014.23
5.5.160.0140.00314.33
5.5.150.0080.00413.91
5.5.140.0000.01914.05
5.5.130.0060.00614.05
5.5.120.0070.01114.38
5.5.110.0120.00314.37
5.5.100.0060.01414.26
5.5.90.0070.01014.32
5.5.80.0110.00413.85
5.5.70.0160.00014.40
5.5.60.0100.00814.20
5.5.50.0060.00914.22
5.5.40.0100.00314.38
5.5.30.0000.01314.34
5.5.20.0070.00714.28
5.5.10.0120.00014.00
5.5.00.0000.01414.16

preferences:
63.6 ms | 400 KiB | 5 Q