3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 0 => [ 1 => "Beanie", ], 1 => [ 2 => "Cap", ] , 2 => [ 1 => "Beanie with Logo", ], ]; print_r(array_merge(...$arr));die;

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)
8.4.140.0150.00817.60
8.4.130.0120.00717.88
8.4.120.0110.00820.49
8.4.110.0140.00718.64
8.4.100.0040.00617.74
8.4.90.0130.00720.19
8.4.80.0050.00418.66
8.4.70.0100.00920.21
8.4.60.0090.01220.55
8.4.50.0090.01118.39
8.4.40.0060.00319.35
8.4.30.0090.01120.55
8.4.20.0080.00820.55
8.4.10.0060.00319.58
8.3.270.0090.01016.45
8.3.260.0120.00716.68
8.3.250.0070.01118.72
8.3.240.0130.00616.73
8.3.230.0120.00616.38
8.3.220.0100.00720.72
8.3.210.0090.01016.43
8.3.200.0030.00616.55
8.3.190.0120.00516.74
8.3.180.0060.00318.74
8.3.170.0120.00617.01
8.3.160.0140.00318.86
8.3.150.0100.01016.64
8.3.140.0080.00016.70
8.3.130.0030.00616.50
8.3.120.0040.01118.57
8.3.110.0120.00320.94
8.3.100.0040.00424.06
8.3.90.0040.00426.77
8.3.80.0060.00316.38
8.3.70.0120.00316.63
8.3.60.0140.00318.30
8.3.50.0110.00716.47
8.3.40.0110.00318.70
8.3.30.0120.00918.77
8.3.20.0040.00420.75
8.3.10.0000.00819.19
8.3.00.0040.00421.72
8.2.290.0110.00817.24
8.2.280.0080.01018.31
8.2.270.0030.00716.34
8.2.260.0000.00816.94
8.2.250.0080.00018.17
8.2.240.0120.00318.93
8.2.230.0030.00622.58
8.2.220.0040.01237.54
8.2.210.0110.00426.77
8.2.200.0060.00316.75
8.2.190.0170.00316.58
8.2.180.0090.00925.92
8.2.170.0140.00322.96
8.2.160.0030.01020.55
8.2.150.0040.00424.18
8.2.140.0090.00024.66
8.2.130.0040.00426.16
8.2.120.0120.00320.88
8.2.110.0060.00322.30
8.2.100.0070.00317.85
8.2.90.0000.00818.09
8.2.80.0000.00818.82
8.2.70.0040.00418.04
8.2.60.0040.00418.09
8.2.50.0040.00418.10
8.2.40.0070.00019.22
8.2.30.0040.00419.12
8.2.20.0040.00417.87
8.2.10.0060.00318.92
8.2.00.0000.00719.30
8.1.330.0130.00616.09
8.1.320.0100.01016.01
8.1.310.0000.00816.90
8.1.300.0000.01016.08
8.1.290.0040.00818.88
8.1.280.0120.00625.92
8.1.270.0040.00422.21
8.1.260.0120.00326.35
8.1.250.0000.00728.09
8.1.240.0080.00023.96
8.1.230.0040.00720.95
8.1.220.0080.00017.74
8.1.210.0030.00518.77
8.1.200.0000.01217.35
8.1.190.0060.00317.10
8.1.180.0030.00618.10
8.1.170.0040.00418.54
8.1.160.0040.00418.86
8.1.150.0030.00518.76
8.1.140.0050.00218.83
8.1.130.0070.00020.02
8.1.120.0000.00817.41
8.1.110.0030.00617.40
8.1.100.0050.00517.32
8.1.90.0000.00717.39
8.1.80.0000.00717.36
8.1.70.0080.00017.31
8.1.60.0040.00417.52
8.1.50.0030.00517.52
8.1.40.0000.00817.55
8.1.30.0040.00417.63
8.1.20.0050.00317.70
8.1.10.0000.00817.34
8.1.00.0060.00317.43
8.0.300.0070.00020.16
8.0.290.0070.00016.75
8.0.280.0000.00718.38
8.0.270.0070.00016.89
8.0.260.0050.00320.22
8.0.250.0000.00616.96
8.0.240.0000.00716.90
8.0.230.0000.00716.93
8.0.220.0000.00716.88
8.0.210.0000.00716.75
8.0.200.0000.00716.98
8.0.190.0040.00416.84
8.0.180.0040.00416.93
8.0.170.0000.00816.89
8.0.160.0040.00416.97
8.0.150.0040.00416.85
8.0.140.0040.00416.88
8.0.130.0070.00013.27
8.0.120.0080.00016.87
8.0.110.0020.00516.88
8.0.100.0000.00816.78
8.0.90.0000.00716.86
8.0.80.0030.01016.93
8.0.70.0070.00016.91
8.0.60.0070.00016.72
8.0.50.0040.00416.94
8.0.30.0110.00716.84
8.0.20.0070.01017.11
8.0.10.0000.00716.95
8.0.00.0110.00916.92
7.4.330.0030.00315.55
7.4.320.0030.00316.45
7.4.300.0030.00316.54
7.4.290.0050.00316.54
7.4.280.0030.00616.51
7.4.270.0050.00316.53
7.4.260.0050.00316.43
7.4.250.0000.00716.52
7.4.240.0070.00016.33
7.4.230.0070.00016.32
7.4.220.0040.00416.48
7.4.210.0080.01016.47
7.4.200.0040.00416.54
7.4.160.0080.00916.41
7.4.140.0110.01117.86
7.4.130.0120.00616.34
7.4.120.0110.00316.51
7.4.110.0070.01016.41
7.4.100.0110.00716.64
7.4.90.0100.00716.62
7.4.80.0130.01019.39
7.4.70.0060.01816.48
7.4.60.0150.00716.21
7.4.50.0130.00316.42
7.4.40.0040.01216.44
7.4.00.0100.00614.87
7.3.330.0000.00513.09
7.3.320.0060.00013.07
7.3.310.0030.00315.99
7.3.300.0000.00616.26
7.3.290.0060.00016.25
7.3.280.0090.00716.19
7.3.260.0130.00516.24
7.3.230.0140.00316.31
7.3.210.0100.00616.18
7.3.200.0090.00916.30
7.3.190.0130.00316.25
7.3.180.0070.01416.42
7.3.170.0070.01016.29
7.3.160.0150.00616.34
7.3.120.0070.01114.55
7.3.110.0000.01814.52
7.3.100.0070.00714.38
7.3.90.0030.00914.63
7.3.80.0100.00714.54
7.3.70.0090.00914.70
7.3.60.0110.00814.51
7.3.50.0060.01014.74
7.3.40.0090.00914.65
7.3.30.0090.00314.70
7.3.20.0120.00515.50
7.3.10.0110.00815.54
7.3.00.0080.00715.65
7.2.330.0130.00316.48
7.2.320.0110.01116.24
7.2.310.0120.00316.37
7.2.300.0090.00616.34
7.2.290.0050.01116.43
7.2.250.0040.01514.66
7.2.240.0100.01014.87
7.2.230.0070.01114.81
7.2.220.0110.00714.88
7.2.210.0030.01414.61
7.2.200.0100.00714.56
7.2.190.0030.01214.93
7.2.180.0050.00814.82
7.2.170.0100.00714.61
7.2.160.0090.00614.69
7.2.150.0120.00614.77
7.2.140.0170.01014.92
7.2.130.0090.00514.75
7.2.120.0060.00714.98
7.2.110.0130.00015.03
7.2.100.0060.00814.69
7.2.90.0080.00814.82
7.2.80.0120.00414.79
7.2.70.0040.00814.78
7.2.60.0110.01114.98
7.2.50.0060.00815.07
7.2.40.0130.00315.01
7.2.30.0150.00914.93
7.2.20.0140.00315.11
7.2.10.0030.01514.88
7.2.00.0100.00814.94
7.1.330.0030.01315.71
7.1.320.0090.00015.82
7.1.310.0040.01115.43
7.1.300.0060.00615.63
7.1.290.0060.00615.71
7.1.280.0510.00314.74
7.1.270.0060.00614.73
7.1.260.0050.01314.80
7.1.250.0280.00313.98

preferences:
43.54 ms | 403 KiB | 5 Q