3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = [['a' => 1, 'b' => 2], ['a' => 3, 'b' => 4], ['a' => 5, 'b' => 6]]; $arr2 = [ 'c' => 'd', ...$arr1 ]; var_dump($arr2);

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)
8.4.120.0050.00420.59
8.4.110.0160.00422.32
8.4.100.0060.00417.58
8.4.90.0140.00822.26
8.4.80.0090.00917.78
8.4.70.0090.00717.89
8.4.60.0130.00818.62
8.4.50.0090.00817.44
8.4.40.0060.01317.58
8.4.30.0130.00622.39
8.4.20.0170.00318.11
8.4.10.0030.00619.11
8.3.250.0100.00820.86
8.3.240.0120.00916.48
8.3.230.0150.00516.14
8.3.220.0110.00819.02
8.3.210.0100.01018.54
8.3.200.0050.00416.43
8.3.190.0100.00416.97
8.3.180.0100.00916.69
8.3.170.0040.00417.13
8.3.160.0090.00916.57
8.3.150.0040.00418.63
8.3.140.0080.00816.53
8.3.130.0060.00316.50
8.3.120.0100.00620.45
8.3.110.0120.00420.94
8.3.100.0170.00324.06
8.3.90.0030.00626.77
8.3.80.0030.00619.36
8.3.70.0060.01016.75
8.3.60.0110.01116.32
8.3.50.0110.00824.46
8.3.40.0100.01018.90
8.3.30.0060.01318.41
8.3.20.0020.00524.18
8.3.10.0040.00424.66
8.3.00.0070.00026.16
8.2.290.0070.00720.28
8.2.280.0120.00818.50
8.2.270.0070.01118.52
8.2.260.0000.01120.88
8.2.250.0040.00418.54
8.2.240.0040.00416.49
8.2.230.0050.00322.58
8.2.220.0040.00437.54
8.2.210.0000.00926.77
8.2.200.0130.00018.88
8.2.190.0120.00318.33
8.2.180.0120.00625.92
8.2.170.0060.00918.66
8.2.160.0140.00022.96
8.2.150.0080.00025.66
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00421.12
8.2.110.0030.00722.20
8.2.100.0080.00419.51
8.2.90.0070.00417.93
8.2.80.0040.00418.77
8.2.70.0040.00418.05
8.2.60.0050.00218.16
8.2.50.0060.00318.10
8.2.40.0000.00821.21
8.2.30.0040.00419.18
8.2.20.0060.00317.99
8.2.10.0040.00419.30
8.2.00.0060.00319.17
8.1.330.0110.00821.85
8.1.320.0100.00916.17
8.1.310.0110.00416.51
8.1.300.0100.01018.45
8.1.290.0100.00030.84
8.1.280.0130.00925.92
8.1.270.0060.00323.91
8.1.260.0130.00726.35
8.1.250.0000.00828.09
8.1.240.0070.00420.36
8.1.230.0040.00717.89
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00617.36
8.1.190.0040.00417.10
8.1.180.0060.00318.10
8.1.170.0050.00318.50
8.1.160.0040.00418.93
8.1.150.0040.00418.80
8.1.140.0000.00718.84
8.1.130.0070.00020.13
8.1.120.0040.00417.46
8.1.110.0000.00817.44
8.1.100.0030.00617.48
8.1.90.0030.00617.42
8.1.80.0000.01017.27
8.1.70.0070.00017.41
8.1.60.0060.00317.48
8.1.50.0000.01017.48
8.1.40.0040.00417.45
8.1.30.0000.00817.48
8.1.20.0050.00517.54
8.1.10.0060.00317.62
8.1.00.0030.00617.46
8.0.300.0040.00418.77
8.0.290.0080.00016.75
8.0.280.0030.00318.50
8.0.270.0030.00316.71
8.0.260.0060.00018.61
8.0.250.0000.00716.93
8.0.240.0040.00417.02
8.0.230.0030.00316.93
8.0.220.0000.00716.78
8.0.210.0030.00316.89
8.0.200.0040.00416.95
8.0.190.0040.00416.98
8.0.180.0000.00716.82
8.0.170.0040.00416.73
8.0.160.0070.00016.88
8.0.150.0050.00216.68
8.0.140.0050.00316.74
8.0.130.0050.00013.24
8.0.120.0040.00416.86
8.0.110.0040.00416.87
8.0.100.0040.00417.00
8.0.90.0050.00216.93
8.0.80.0120.00416.89
8.0.70.0000.00816.70
8.0.60.0000.00716.92
8.0.50.0000.00716.72
8.0.30.0030.01317.07
8.0.20.0170.00316.79
8.0.10.0070.00016.91
8.0.00.0140.01016.81
7.4.330.0050.00015.55
7.4.320.0030.00316.43
7.4.300.0070.00016.43
7.4.290.0000.00716.44
7.4.280.0040.00416.37
7.4.270.0050.00216.43
7.4.260.0000.00613.13
7.4.250.0070.00016.48
7.4.240.0000.00716.53
7.4.230.0000.00716.39
7.4.220.0040.00316.45
7.4.210.0110.00516.56
7.4.200.0030.00316.34
7.4.130.0070.01716.39
7.4.120.0000.02116.44
7.4.110.0150.00916.39
7.4.100.0100.01016.34
7.4.90.0070.01016.20
7.4.80.0050.01816.33
7.4.70.0000.02416.42
7.4.60.0120.01216.49
7.4.50.0110.00716.29
7.4.40.0100.00716.46
7.4.30.0120.00616.21
7.4.20.0130.00616.46
7.4.10.0070.01016.20
7.4.00.0140.00316.54
7.3.330.0070.00016.02
7.3.320.0050.00012.96
7.3.310.0040.00416.01
7.3.300.0030.00316.08
7.3.290.0090.00916.12
7.3.260.0120.00916.13
7.3.250.0160.00616.09
7.3.240.0150.00316.41
7.3.230.0130.00916.10
7.3.220.0150.00316.07
7.3.210.0040.01516.20
7.3.200.0100.01316.19
7.3.190.0110.00616.26
7.3.180.0090.00916.38
7.3.170.0140.00416.12
7.3.160.0120.00616.11
7.3.150.0130.00316.03
7.3.140.0030.01316.14
7.3.130.0110.00616.34
7.3.120.0060.01216.22
7.3.110.0090.00916.23
7.3.100.0120.00616.25
7.3.90.0200.00516.29
7.3.80.0000.01716.23
7.3.70.0130.00416.24
7.3.60.0120.00616.17
7.3.50.0130.01016.23
7.3.40.0090.00916.16
7.3.30.0130.01016.23
7.3.20.0090.00916.13
7.3.10.0160.00616.11
7.3.00.0030.01416.19

preferences:
27.89 ms | 403 KiB | 5 Q