3v4l.org

run code in 300+ PHP versions simultaneously
<?php $existing = ["president" => "trump"]; $new = ["president" => "anybody else"]; var_dump($existing + $new);

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)
8.3.60.0150.00316.38
8.3.50.0170.00316.15
8.3.40.0090.00618.63
8.3.30.0090.00618.45
8.3.20.0070.00024.18
8.3.10.0070.00024.66
8.3.00.0040.00426.16
8.2.180.0100.00625.92
8.2.170.0090.00622.96
8.2.160.0070.00722.96
8.2.150.0000.00925.66
8.2.140.0070.00024.66
8.2.130.0000.00726.16
8.2.120.0000.00821.06
8.2.110.0000.00820.43
8.2.100.0110.00019.57
8.2.90.0060.00317.75
8.2.80.0000.00917.97
8.2.70.0030.00517.63
8.2.60.0000.00717.93
8.2.50.0090.00018.07
8.2.40.0080.00017.97
8.2.30.0000.00918.04
8.2.20.0040.00417.98
8.2.10.0000.00719.16
8.2.00.0040.00419.10
8.1.280.0100.00725.92
8.1.270.0040.00423.99
8.1.260.0030.00526.35
8.1.250.0080.00028.09
8.1.240.0040.00422.23
8.1.230.0080.00317.68
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0000.00817.21
8.1.190.0040.00417.23
8.1.180.0080.00018.10
8.1.170.0050.00318.53
8.1.160.0040.00418.86
8.1.150.0000.00718.81
8.1.140.0040.00418.92
8.1.130.0030.00320.05
8.1.120.0000.00817.37
8.1.110.0040.00417.34
8.1.100.0000.00817.27
8.1.90.0080.00017.41
8.1.80.0040.00417.32
8.1.70.0100.00017.35
8.1.60.0030.00617.57
8.1.50.0000.00717.35
8.1.40.0060.00317.34
8.1.30.0000.00817.41
8.1.20.0040.00417.59
8.1.10.0090.00417.35
8.1.00.0000.00817.25
8.0.300.0060.00318.77
8.0.290.0040.00416.63
8.0.280.0000.00818.37
8.0.270.0070.00017.87
8.0.260.0030.00318.37
8.0.250.0040.00416.88
8.0.240.0030.00316.93
8.0.230.0040.00416.87
8.0.220.0080.00016.77
8.0.210.0000.00716.77
8.0.200.0070.00016.93
8.0.190.0050.00316.91
8.0.180.0040.00416.79
8.0.170.0080.00016.90
8.0.160.0050.00316.93
8.0.150.0000.00716.75
8.0.140.0050.00216.77
8.0.130.0000.00513.18
8.0.120.0060.00316.75
8.0.110.0000.00716.78
8.0.100.0000.00716.84
8.0.90.0000.00816.77
8.0.80.0110.00616.87
8.0.70.0050.00216.81
8.0.60.0040.00416.81
8.0.50.0030.00516.89
8.0.30.0120.00617.26
8.0.20.0040.01317.18
8.0.10.0000.00816.91
8.0.00.0060.01216.68
7.4.330.0000.00415.55
7.4.320.0040.00416.44
7.4.300.0060.00316.38
7.4.290.0030.00316.34
7.4.280.0030.00616.52
7.4.270.0000.00716.48
7.4.260.0110.00016.55
7.4.250.0050.00216.32
7.4.240.0030.00316.38
7.4.230.0000.00816.54
7.4.220.0020.00516.46
7.4.210.0090.00516.48
7.4.200.0030.00316.22
7.4.130.0110.00816.55
7.4.120.0170.00716.34
7.4.110.0070.01016.45
7.4.100.0110.00616.36
7.4.90.0080.00816.24
7.4.80.0070.01019.39
7.4.70.0090.00716.41
7.4.60.0050.01516.34
7.4.50.0190.00316.25
7.4.40.0150.00816.35
7.4.30.0110.01116.20
7.4.20.0140.00516.16
7.4.10.0150.01016.14
7.4.00.0100.00716.31
7.3.330.0040.00416.23
7.3.320.0000.00613.06
7.3.310.0070.00016.26
7.3.300.0050.00216.14
7.3.290.0090.00816.23
7.3.260.0090.00916.33
7.3.240.0090.00816.28
7.3.230.0030.01316.54
7.3.210.0090.00916.25
7.3.200.0110.00616.22
7.3.190.0130.00516.15
7.3.180.0060.01216.34
7.3.170.0100.01016.23
7.3.160.0070.01416.14
7.3.150.0050.01616.37
7.3.140.0140.00716.29
7.3.130.0090.01216.00
7.3.120.0170.00516.21
7.3.110.0160.00916.32
7.3.100.0170.00316.26
7.3.90.0130.01016.23
7.3.80.0200.00316.16
7.3.70.0200.00916.32
7.3.60.0140.00816.18
7.3.50.0100.01016.13
7.3.40.0170.00316.12
7.3.30.0150.01016.13
7.3.20.0170.00616.17
7.3.10.0170.00916.07
7.3.00.0170.01316.20
7.2.330.0080.00916.40
7.2.310.0150.00516.23
7.2.300.0110.01116.21
7.2.290.0130.00816.42
7.2.280.0110.00816.29
7.2.270.0120.00916.41
7.2.260.0090.00916.24
7.2.250.0060.01516.19
7.2.240.0050.01616.39
7.2.230.0080.01216.37
7.2.220.0130.01116.41
7.2.210.0090.01316.26
7.2.200.0110.01316.31
7.2.190.0200.00516.27
7.2.180.0160.00516.36
7.2.170.0110.01116.37
7.2.160.0140.01116.32
7.2.150.0070.01316.32
7.2.140.0130.01416.31
7.2.130.0150.01516.25
7.2.120.0150.01316.39
7.2.110.0120.01716.34
7.2.100.0150.01016.48
7.2.90.0210.00716.52
7.2.80.0160.00816.64
7.2.70.0190.00316.55
7.2.60.0150.00516.24
7.2.50.0100.01716.18
7.2.40.0140.00916.56
7.2.30.0130.01016.54
7.2.20.0120.00816.17
7.2.10.0070.01216.32
7.2.00.0130.00516.37

preferences:
48.55 ms | 400 KiB | 5 Q