3v4l.org

run code in 300+ PHP versions simultaneously
<?php function test(?string $a = null):?string { return $a; } echo test('a'); echo test();

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)
8.3.60.0090.00618.28
8.3.50.0070.00717.75
8.3.40.0080.00818.48
8.3.30.0090.00618.62
8.3.20.0040.00418.60
8.3.10.0040.00423.63
8.3.00.0070.00020.52
8.2.180.0100.01018.06
8.2.170.0030.01722.96
8.2.160.0140.00019.45
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0080.00018.03
8.2.120.0080.00026.35
8.2.110.0000.00920.56
8.2.100.0030.01017.72
8.2.90.0000.01217.63
8.2.80.0000.00817.97
8.2.70.0000.00817.80
8.2.60.0000.00818.09
8.2.50.0000.00818.10
8.2.40.0060.00319.20
8.2.30.0070.00019.16
8.2.20.0030.00517.89
8.2.10.0040.00417.84
8.2.00.0030.00917.39
8.1.280.0030.01425.92
8.1.270.0050.00518.59
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00323.97
8.1.230.0110.00017.70
8.1.220.0060.00317.74
8.1.210.0080.00318.77
8.1.200.0040.00417.10
8.1.190.0080.00016.97
8.1.180.0000.00818.10
8.1.170.0030.00618.65
8.1.160.0070.00018.60
8.1.150.0040.00418.80
8.1.140.0040.00422.18
8.1.130.0030.00320.02
8.1.120.0030.00517.29
8.1.110.0020.00517.18
8.1.100.0040.00417.32
8.1.90.0080.00017.31
8.1.80.0030.00317.35
8.1.70.0090.00017.38
8.1.60.0080.00017.44
8.1.50.0040.00417.37
8.1.40.0090.00017.34
8.1.30.0040.00417.54
8.1.20.0050.00317.50
8.1.10.0040.00417.36
8.1.00.0000.00717.43
8.0.300.0000.00818.77
8.0.290.0030.00616.63
8.0.280.0000.00718.43
8.0.270.0050.00317.16
8.0.260.0090.00020.29
8.0.250.0060.00316.74
8.0.240.0030.00316.93
8.0.230.0000.00716.77
8.0.220.0000.00716.83
8.0.210.0040.00416.77
8.0.200.0040.00416.77
8.0.190.0080.00016.88
8.0.180.0040.00416.82
8.0.170.0030.00616.87
8.0.160.0000.00716.75
8.0.150.0040.00416.73
8.0.140.0040.00416.80
8.0.130.0050.00013.23
8.0.120.0000.00816.78
8.0.110.0050.00316.76
8.0.100.0070.00016.68
8.0.90.0000.00716.88
8.0.80.0110.00816.87
8.0.70.0030.00516.77
8.0.60.0000.00816.75
8.0.50.0000.00716.85
8.0.30.0090.00716.99
8.0.20.0110.00817.40
8.0.10.0040.00416.94
8.0.00.0070.01116.77
7.4.330.0000.00515.55
7.4.320.0030.00316.37
7.4.300.0020.00516.50
7.4.290.0030.00316.53
7.4.280.0030.00516.45
7.4.270.0000.00816.44
7.4.260.0030.00316.51
7.4.250.0000.00716.48
7.4.240.0020.00516.38
7.4.230.0070.00016.24
7.4.220.0040.00416.33
7.4.210.0060.00916.54
7.4.200.0050.00316.59
7.4.160.0060.01016.36
7.4.140.0110.00617.86
7.4.130.0140.00416.55
7.4.120.0120.00716.45
7.3.330.0050.00013.25
7.3.320.0030.00313.16
7.3.310.0030.00616.20
7.3.300.0030.00316.31
7.3.290.0000.00716.23
7.3.280.0120.00316.33
7.3.260.0140.00716.49
7.3.240.0110.00916.43
7.2.100.0270.01214.70

preferences:
55.53 ms | 401 KiB | 5 Q