3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = null; var_dump($x); unset($x); var_dump($x);

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)
8.3.60.0080.00816.50
8.3.50.0090.00616.48
8.3.40.0040.01118.79
8.3.30.0070.00718.67
8.3.20.0040.00420.29
8.3.10.0030.00523.53
8.3.00.0030.00519.38
8.2.180.0210.00016.50
8.2.170.0210.00022.96
8.2.160.0100.00320.39
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0040.00419.36
8.2.110.0060.00321.13
8.2.100.0040.00817.72
8.2.90.0040.00417.97
8.2.80.0080.00018.22
8.2.70.0080.00017.62
8.2.60.0070.00317.50
8.2.50.0030.00517.63
8.2.40.0080.00018.00
8.2.30.0070.00019.16
8.2.20.0070.00018.05
8.2.10.0000.00717.86
8.2.00.0040.00417.92
8.1.280.0070.01425.92
8.1.270.0040.00423.84
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0040.00422.25
8.1.230.0080.00321.02
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0000.00917.13
8.1.190.0080.00016.86
8.1.180.0040.00418.10
8.1.170.0000.00817.62
8.1.160.0040.00419.04
8.1.150.0080.00020.72
8.1.140.0040.00417.48
8.1.130.0070.00018.79
8.1.120.0000.00717.48
8.1.110.0000.00817.40
8.1.100.0070.00017.28
8.1.90.0000.00817.38
8.1.80.0040.00417.45
8.1.70.0000.00717.40
8.1.60.0070.00017.40
8.1.50.0080.00017.45
8.1.40.0030.00617.50
8.1.30.0060.00317.40
8.1.20.0070.00417.57
8.1.10.0000.00817.48
8.1.00.0040.00417.51
8.0.300.0000.00719.98
8.0.290.0040.00416.63
8.0.280.0030.00318.38
8.0.270.0080.00016.86
8.0.260.0000.00716.85
8.0.250.0000.00716.92
8.0.240.0050.00216.94
8.0.230.0040.00416.92
8.0.220.0000.00716.88
8.0.210.0070.00016.75
8.0.200.0000.00616.92
8.0.190.0040.00416.92
8.0.180.0040.00416.91
8.0.170.0070.00016.79
8.0.160.0050.00216.88
8.0.150.0050.00316.84
8.0.140.0000.00716.77
8.0.130.0000.00513.20
8.0.120.0050.00216.92
8.0.110.0000.00716.87
8.0.100.0040.00416.75
8.0.90.0000.00816.87
8.0.80.0170.00316.89
8.0.70.0040.00416.83
8.0.60.0070.00016.86
8.0.50.0040.00416.95
8.0.30.0100.00717.07
8.0.20.0120.00817.40
8.0.10.0030.00516.89
8.0.00.0150.00316.99
7.4.330.0020.00215.55
7.4.320.0040.00416.54
7.4.300.0030.00316.54
7.4.290.0060.00316.36
7.4.280.0000.01116.53
7.4.270.0030.00316.46
7.4.260.0040.00416.43
7.4.250.0000.00816.40
7.4.240.0030.00316.48
7.4.230.0030.00316.24
7.4.220.0100.01616.60
7.4.210.0070.00716.57
7.4.200.0030.00316.25
7.4.160.0120.00616.45
7.4.150.0100.00717.40
7.4.140.0070.01217.86
7.4.130.0180.00316.55
7.4.120.0090.01216.49
7.4.110.0150.00616.42
7.4.100.0070.01816.36
7.4.90.0090.00616.35
7.4.80.0130.01019.39
7.4.70.0110.00816.50
7.4.60.0060.01116.33
7.4.50.0100.00316.52
7.4.40.0070.01016.41
7.4.30.0110.00516.54
7.4.00.0050.01115.00
7.3.330.0000.00513.13
7.3.320.0050.00012.99
7.3.310.0040.00416.15
7.3.300.0000.00616.13
7.3.290.0100.00416.16
7.3.280.0070.00916.19
7.3.270.0080.01117.40
7.3.260.0080.01216.24
7.3.250.0080.00916.16
7.3.240.0080.00816.23
7.3.230.0090.00916.24
7.3.210.0130.00416.35
7.3.200.0070.01016.22
7.3.190.0090.00916.21
7.3.180.0130.00316.28
7.3.170.0060.01116.35
7.3.160.0100.00616.18
7.3.120.0140.00314.32
7.3.110.0070.01014.89
7.3.100.0000.01214.68
7.3.90.0000.01114.74
7.3.80.0090.00614.61
7.3.70.0080.00814.77
7.3.60.0030.00914.80
7.3.50.0090.00614.48
7.3.40.0060.00314.57
7.3.30.0040.00814.37
7.3.20.0070.00716.36
7.3.10.0080.00316.59
7.3.00.0060.00616.71
7.2.330.0060.01116.23
7.2.320.0060.01516.51
7.2.310.0000.01616.20
7.2.300.0110.00616.40
7.2.290.0100.01016.57
7.2.250.0070.01114.91
7.2.240.0060.01214.99
7.2.230.0090.00314.93
7.2.220.0000.01914.85
7.2.210.0000.01514.97
7.2.200.0030.01414.69
7.2.190.0070.00714.56
7.2.180.0090.00614.53
7.2.170.0090.00614.95
7.2.60.0110.01116.64
7.2.50.0100.00316.62
7.1.330.0030.01215.70
7.1.320.0040.01115.41
7.1.310.0070.01015.93
7.1.300.0070.00315.58
7.1.290.0090.00615.61
7.1.280.0030.01415.32
7.1.270.0000.01515.76
7.1.260.0040.00815.73
7.1.200.0070.00715.70
7.1.70.0350.00617.18
7.1.60.0370.01034.95
7.1.50.0490.01333.07
7.1.40.0660.00732.44
7.1.30.0290.01934.20
7.1.20.0470.02832.57
7.1.10.0110.00716.55
7.1.00.0030.01716.59
7.0.200.0100.01516.87
7.0.190.0270.01014.91
7.0.180.0090.01416.09
7.0.170.0300.01514.53
7.0.160.0350.00814.42
7.0.150.0510.01314.36
7.0.140.0070.01816.52
7.0.130.0030.01616.42
7.0.120.0110.00816.46
7.0.110.0060.01316.25
7.0.100.0030.01616.25
7.0.90.0060.00916.23
7.0.80.0050.01416.32
7.0.70.0060.01516.37
7.0.60.0000.01816.28
7.0.50.0060.01116.54
7.0.40.0090.00916.49
7.0.30.0080.01216.45
7.0.20.0030.01616.37
7.0.10.0100.00716.68
7.0.00.0060.01516.47

preferences:
39.12 ms | 400 KiB | 5 Q