3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); function foo(string $a = null) { return $a; } 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)
8.3.40.0100.00618.58
8.3.30.0110.00318.35
8.3.20.0000.00720.09
8.3.10.0080.00021.77
8.3.00.0040.00420.95
8.2.170.0090.00922.96
8.2.160.0070.00722.21
8.2.150.0030.00624.18
8.2.140.0040.00424.66
8.2.130.0000.00722.25
8.2.120.0040.00426.35
8.2.110.0070.00320.35
8.2.100.0090.00317.34
8.2.90.0000.00819.11
8.2.80.0040.00417.97
8.2.70.0050.00317.50
8.2.60.0050.00317.68
8.2.50.0030.00618.10
8.2.40.0070.00022.27
8.2.30.0040.00420.89
8.2.20.0000.00817.93
8.2.10.0050.00217.91
8.2.00.0000.00917.96
8.1.270.0040.00422.05
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0080.00020.69
8.1.230.0040.00718.88
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0060.00317.10
8.1.190.0000.00817.00
8.1.180.0080.00018.10
8.1.170.0080.00018.52
8.1.160.0070.00018.89
8.1.150.0080.00020.65
8.1.140.0000.00719.43
8.1.130.0030.00518.68
8.1.120.0030.00517.36
8.1.110.0030.00617.30
8.1.100.0040.00417.38
8.1.90.0030.00617.25
8.1.80.0050.00317.31
8.1.70.0000.00717.34
8.1.60.0080.00017.54
8.1.50.0000.00817.27
8.1.40.0040.00417.49
8.1.30.0080.00017.49
8.1.20.0000.00817.61
8.1.10.0050.00317.27
8.1.00.0040.00417.29
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0030.00318.35
8.0.270.0030.00317.17
8.0.260.0000.00716.75
8.0.250.0030.00316.84
8.0.240.0050.00316.76
8.0.230.0040.00416.80
8.0.220.0000.00716.64
8.0.210.0030.00316.79
8.0.200.0030.00316.82
8.0.190.0030.00616.83
8.0.180.0000.00716.69
8.0.170.0000.00716.80
8.0.160.0030.00316.75
8.0.150.0050.00316.70
8.0.140.0030.00316.68
8.0.130.0060.00013.20
8.0.120.0000.00816.73
8.0.110.0040.00416.77
8.0.100.0000.00816.70
8.0.90.0000.00716.70
8.0.80.0030.01916.68
8.0.70.0000.00716.78
8.0.60.0070.00016.76
8.0.50.0020.00516.84
8.0.30.0100.01016.99
8.0.20.0110.01117.40
8.0.10.0080.00016.83
8.0.00.0100.01316.47
7.4.330.0050.00015.55
7.4.320.0000.00616.49
7.4.300.0030.00316.58
7.4.290.0030.00316.34
7.4.280.0080.00016.42
7.4.270.0030.00316.45
7.4.260.0000.00613.19
7.4.250.0070.00016.46
7.4.240.0060.00316.46
7.4.230.0030.00316.31
7.4.220.0070.01016.30
7.4.210.0090.00916.48
7.4.200.0000.00716.32
7.4.160.0070.00916.38
7.4.150.0100.00717.40
7.4.140.0120.01317.86
7.4.130.0090.00916.42
7.4.120.0120.00916.50
7.4.110.0050.01416.52
7.4.100.0090.01616.65
7.4.90.0100.00716.39
7.4.80.0140.00719.39
7.4.70.0100.01216.52
7.4.60.0060.00916.38
7.4.50.0080.00516.24
7.4.40.0060.01616.25
7.4.30.0110.00616.48
7.4.00.0070.00714.77
7.3.330.0000.00613.09
7.3.320.0000.00512.95
7.3.310.0000.00716.25
7.3.300.0000.00616.10
7.3.290.0070.00716.18
7.3.280.0110.00516.23
7.3.270.0100.00717.40
7.3.260.0150.00416.31
7.3.250.0120.00816.38
7.3.240.0150.00316.26
7.3.230.0120.00816.47
7.3.210.0140.00316.16
7.3.200.0090.00616.16
7.3.190.0070.01016.41
7.3.180.0090.01016.23
7.3.170.0030.01216.28
7.3.160.0030.01316.26
7.2.330.0090.00916.23
7.2.320.0100.00716.09
7.2.310.0100.00716.43
7.2.300.0070.01116.38
7.2.290.0120.00416.33
7.2.60.0040.00816.80
7.2.00.0130.00719.07
7.1.200.0100.00315.35
7.1.100.0030.00918.06
7.1.70.0000.00716.98
7.1.60.0770.01333.14
7.1.50.0670.01733.03
7.1.40.0670.01032.59
7.1.30.0230.00732.53
7.1.20.0170.02332.68
7.1.10.0470.01314.51
7.1.00.0530.00714.55
7.0.200.0730.00314.68
7.0.190.0670.01014.52
7.0.180.0130.01314.51
7.0.170.0530.00714.27
7.0.160.0500.01014.25
7.0.150.0500.00714.24
7.0.140.0000.01314.24
7.0.130.0430.01014.67
7.0.120.0530.00714.56
7.0.110.0470.01014.22
7.0.100.0570.00714.29
7.0.90.0600.00714.38
7.0.80.0630.01014.45
7.0.70.0570.00714.10
7.0.60.0400.00714.16
7.0.50.0770.00314.43
7.0.40.1070.00714.38
7.0.30.0470.01314.52
7.0.20.0500.01014.43
7.0.10.0030.01014.53
7.0.00.0070.00714.39

preferences:
53.84 ms | 400 KiB | 5 Q