3v4l.org

run code in 300+ PHP versions simultaneously
<?php $A = ["EUR"=>10, "USD"=>20]; $B = ["EUR"=>10, "JPY"=>20]; $result = $A; foreach ($B as $k => $v) { $result[$k] = ($result[$k] ?? 0) + $v; } var_export($result);

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)
8.4.130.0140.00717.55
8.4.120.0100.01020.67
8.4.110.0050.00522.39
8.4.100.0070.00517.77
8.4.90.0170.00618.61
8.4.80.0150.00617.73
8.4.70.0120.00919.51
8.4.60.0050.00321.27
8.4.50.0090.01017.54
8.4.40.0170.00317.73
8.4.30.0160.00318.91
8.4.20.0160.00319.54
8.4.10.0040.00419.39
8.3.250.0080.01018.75
8.3.240.0110.00916.37
8.3.230.0060.00218.28
8.3.220.0080.01016.97
8.3.210.0040.00518.38
8.3.200.0070.01216.70
8.3.190.0110.00816.39
8.3.180.0070.00118.53
8.3.170.0120.00618.91
8.3.160.0090.00917.08
8.3.150.0060.00317.16
8.3.140.0070.01117.16
8.3.130.0050.00518.36
8.3.120.0000.00720.79
8.3.110.0060.00320.94
8.3.100.0150.00016.37
8.3.90.0090.00626.77
8.3.80.0060.00317.97
8.3.70.0070.00716.38
8.3.60.0140.00716.39
8.3.50.0110.00716.79
8.3.40.0100.00321.74
8.3.30.0140.00420.33
8.3.20.0090.00921.57
8.3.10.0130.00721.81
8.3.00.0160.00318.71
8.2.290.0120.00720.55
8.2.280.0040.00418.42
8.2.270.0000.00719.07
8.2.260.0060.00316.39
8.2.250.0120.00318.41
8.2.240.0160.00319.05
8.2.230.0060.00322.58
8.2.220.0040.00424.06
8.2.210.0040.01126.77
8.2.200.0040.00816.38
8.2.190.0160.00016.58
8.2.180.0140.00716.38
8.2.170.0140.00319.00
8.2.160.0070.00722.96
8.2.150.0110.00819.28
8.2.140.0130.00620.55
8.2.130.0140.00720.43
8.2.120.0070.01419.39
8.2.110.0120.00319.45
8.2.100.0110.00719.20
8.2.90.0170.00018.86
8.2.80.0070.01019.30
8.2.70.0070.01018.75
8.2.60.0060.01318.95
8.2.50.0100.00719.00
8.2.40.0070.01018.96
8.2.30.0090.00918.66
8.2.20.0120.00618.82
8.2.10.0070.01118.74
8.2.00.0120.00618.69
8.1.330.0100.00822.04
8.1.320.0120.00815.96
8.1.310.0080.00018.23
8.1.300.0000.01518.00
8.1.290.0030.00530.84
8.1.280.0110.00725.92
8.1.270.0090.00622.14
8.1.260.0040.01122.12
8.1.250.0110.00422.10
8.1.240.0070.01018.73
8.1.230.0160.00318.70
8.1.220.0080.00618.99
8.1.210.0120.00618.56
8.1.200.0100.00318.79
8.1.190.0110.00318.63
8.1.180.0030.01318.38
8.1.170.0100.00718.69
8.1.160.0130.00618.56
8.1.150.0100.00718.77
8.1.140.0110.00418.49
8.1.130.0100.00318.75
8.1.120.0110.00418.57
8.1.110.0070.00718.50
8.1.100.0070.00718.55
8.1.90.0110.00718.56
8.1.80.0100.01019.75
8.1.70.0100.01018.50
8.1.60.0180.00018.81
8.1.50.0110.00418.73
8.1.40.0070.00718.75
8.1.30.0120.00318.74
8.1.20.0060.01019.92
8.1.10.0060.00918.50
8.1.00.0040.01218.47

preferences:
33.59 ms | 403 KiB | 5 Q