3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = ['a' => 1]; $bar = ['a' => 2]; $baz = ['a' => 3]; var_dump($foo + $bar + $baz); var_dump(array_merge($foo, $bar, $baz));

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)
8.3.60.0070.01516.63
8.3.50.0170.00318.30
8.3.40.0130.00620.29
8.3.30.0030.01020.64
8.3.20.0060.00324.18
8.3.10.0070.00024.66
8.3.00.0080.00026.16
8.2.180.0120.00616.50
8.2.170.0120.00318.79
8.2.160.0060.00922.96
8.2.150.0040.00425.66
8.2.140.0080.00024.66
8.2.130.0030.00526.16
8.2.120.0040.00419.36
8.2.110.0060.00320.58
8.2.100.0070.00417.84
8.2.90.0040.00418.03
8.2.80.0040.00419.05
8.2.70.0100.00425.13
8.2.60.0140.00425.10
8.2.50.0140.00525.10
8.2.40.0130.00425.06
8.2.30.0110.00525.09
8.2.20.0090.00625.20
8.2.10.0120.00425.08
8.2.00.0110.00525.11
8.1.280.0090.00625.92
8.1.270.0080.00024.66
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.21
8.1.230.0120.00022.72
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0120.00524.83
8.1.190.0110.00524.72
8.1.180.0110.00624.80
8.1.170.0140.00324.82
8.1.160.0110.00524.75
8.1.150.0140.00424.80
8.1.140.0130.00424.83
8.1.130.0140.00324.82
8.1.120.0140.00424.90
8.1.110.0100.00624.90
8.1.100.0110.00624.91
8.1.90.0120.00524.93
8.1.80.0100.00624.95
8.1.70.0120.00524.93
8.1.60.0130.00625.08
8.1.50.0140.00425.01
8.1.40.0120.00625.08
8.1.30.0140.00525.03
8.1.20.0150.00425.15
8.1.10.0120.00624.93
8.1.00.0120.00624.87
8.0.300.0070.00020.10
8.0.290.0120.00324.45
8.0.280.0110.00624.45
8.0.270.0130.00424.45
8.0.260.0140.00324.44
8.0.250.0130.00324.45
8.0.240.0140.00324.45
8.0.230.0140.00424.49
8.0.220.0150.00224.43
8.0.210.0120.00624.45
8.0.200.0120.00524.46
8.0.190.0110.00624.47
8.0.180.0130.00424.44
8.0.170.0100.00624.45
8.0.160.0130.00424.50
8.0.150.0120.00424.44
8.0.140.0110.00624.46
8.0.130.0130.00424.44
8.0.120.0120.00524.45
8.0.110.0110.00524.42
8.0.100.0110.00524.45
8.0.90.0110.00524.47
8.0.80.0110.00524.47
8.0.70.0120.00424.45
8.0.60.0120.00424.43
8.0.50.0100.00624.44
8.0.30.0120.00424.44
8.0.20.0120.00424.45
8.0.10.0140.00224.47

preferences:
29.58 ms | 400 KiB | 5 Q