3v4l.org

run code in 300+ PHP versions simultaneously
<?php $name = 'mickmackusa'; $dob = fn(?int $age): ?int => !$age ? null : ( fn($newAge) => (print "$name's age is $newAge\n") ? $newAge : null )(2021 - $age); var_export($dob(null)); echo "\n---\n"; var_export($dob(31));

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)
8.5.00.0070.01420.36
8.4.150.0080.00516.87
8.4.140.0120.00917.81
8.4.130.0140.00717.89
8.4.120.0140.00524.25
8.4.110.0120.00819.22
8.4.100.0130.00718.38
8.4.90.0070.01319.08
8.4.80.0060.00318.85
8.4.70.0140.01018.15
8.4.60.0120.00819.07
8.4.50.0110.01018.69
8.4.40.0090.00617.53
8.4.30.0130.00620.72
8.4.20.0060.01319.64
8.4.10.0150.00419.53
8.3.280.0020.00014.05
8.3.270.0120.00716.37
8.3.260.0130.00716.68
8.3.250.0110.00816.79
8.3.240.0120.00617.29
8.3.230.0100.00816.79
8.3.220.0110.00718.98
8.3.210.0130.00616.61
8.3.200.0040.00516.72
8.3.190.0070.00817.04
8.3.180.0080.00317.34
8.3.170.0030.00620.68
8.3.160.0030.01617.25
8.3.150.0130.00617.13
8.3.140.0040.00418.53
8.3.130.0030.00618.44
8.3.120.0080.00020.77
8.3.110.0060.00320.94
8.3.100.0080.00018.59
8.3.90.0080.00816.75
8.3.80.0040.00418.55
8.3.70.0060.00918.18
8.3.60.0130.00316.63
8.3.50.0100.01018.63
8.3.40.0030.01021.81
8.3.30.0070.00720.34
8.3.20.0130.00721.66
8.3.10.0110.00721.55
8.3.00.0070.01119.09
8.2.290.0050.00320.51
8.2.280.0080.00318.78
8.2.270.0070.01019.26
8.2.260.0120.00316.88
8.2.250.0070.01318.61
8.2.240.0110.00717.13
8.2.230.0090.00022.58
8.2.220.0100.01024.06
8.2.210.0110.00426.77
8.2.200.0090.00318.08
8.2.190.0140.00716.85
8.2.180.0100.00718.34
8.2.170.0080.00818.91
8.2.160.0040.01122.96
8.2.150.0130.00319.33
8.2.140.0140.00720.47
8.2.130.0150.00620.53
8.2.120.0080.00820.83
8.2.110.0130.00321.00
8.2.100.0140.00320.73
8.2.90.0160.00620.68
8.2.80.0040.01119.39
8.2.70.0150.00318.75
8.2.60.0090.00618.85
8.2.50.0090.00619.20
8.2.40.0120.00318.71
8.2.30.0150.00018.89
8.2.20.0070.00718.69
8.2.10.0030.01218.90
8.2.00.0110.00718.82
8.1.330.0140.00521.86
8.1.320.0100.01015.98
8.1.310.0080.00018.66
8.1.300.0060.00316.40
8.1.290.0030.00618.88
8.1.280.0110.00425.92
8.1.270.0100.00322.10
8.1.260.0150.00022.06
8.1.250.0100.00722.02
8.1.240.0120.00318.63
8.1.230.0110.00418.50
8.1.220.0070.01118.87
8.1.210.0060.00918.51
8.1.200.0140.00318.80
8.1.190.0080.00818.63
8.1.180.0120.00618.39
8.1.170.0140.00018.81
8.1.160.0110.00418.52
8.1.150.0100.00718.86
8.1.140.0120.00318.49
8.1.130.0080.00618.72
8.1.120.0040.01518.56
8.1.110.0090.00918.63
8.1.100.0100.00718.63
8.1.90.0030.01418.52
8.1.80.0040.01119.76
8.1.70.0130.00318.55
8.1.60.0120.00318.56
8.1.50.0170.00018.63
8.1.40.0030.01318.74
8.1.30.0100.00718.73
8.1.20.0130.00319.93
8.1.10.0070.01018.61
8.1.00.0160.00618.48
7.4.330.0320.00516.23

preferences:
84.6 ms | 403 KiB | 5 Q