3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr1 = array(1, 2, 3, 4); $arr2 = array("a" => array(1, 2, 3)); $arr3 = array(); print_r(array_merge_recursive($arr3, $arr1, $arr2, $arr5));

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)
8.3.70.0110.00416.38
8.3.60.0070.00716.75
8.3.50.0100.00916.33
8.3.40.0140.00718.89
8.3.30.0090.00618.62
8.3.20.0040.00420.30
8.3.10.0040.00421.78
8.3.00.0000.00817.72
8.2.180.0100.00716.50
8.2.170.0070.01122.96
8.2.160.0030.01020.52
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0050.00320.97
8.2.120.0040.00426.35
8.2.110.0060.00319.45
8.2.100.0040.00818.03
8.2.90.0050.00319.22
8.2.80.0030.00517.97
8.2.70.0030.00717.48
8.2.60.0060.00317.80
8.2.50.0080.00018.10
8.2.40.0040.00420.42
8.2.30.0040.00419.18
8.2.20.0070.00018.09
8.2.10.0040.00417.96
8.2.00.0070.00018.17
8.1.280.0100.00725.92
8.1.270.0040.00423.96
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0070.00422.03
8.1.230.0080.00417.52
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.13
8.1.190.0040.00417.22
8.1.180.0000.00818.10
8.1.170.0000.00818.59
8.1.160.0000.00718.91
8.1.150.0070.00020.74
8.1.140.0000.00719.46
8.1.130.0030.00318.81
8.1.120.0030.00317.38
8.1.110.0000.00817.26
8.1.100.0000.00717.40
8.1.90.0000.01017.38
8.1.80.0030.00317.25
8.1.70.0050.00317.40
8.1.60.0030.00617.53
8.1.50.0040.00417.53
8.1.40.0070.00017.43
8.1.30.0040.00417.65
8.1.20.0000.00817.63
8.1.10.0050.00217.63
8.1.00.0000.00817.41
8.0.300.0030.00618.77
8.0.290.0000.00716.63
8.0.280.0030.00318.34
8.0.270.0000.00717.19
8.0.260.0030.00316.86
8.0.250.0060.00016.88
8.0.240.0040.00416.83
8.0.230.0030.00316.95
8.0.220.0030.00316.88
8.0.210.0000.00716.82
8.0.200.0030.00316.99
8.0.190.0040.00416.91
8.0.180.0040.00416.88
8.0.170.0080.00016.89
8.0.160.0040.00416.86
8.0.150.0040.00416.87
8.0.140.0000.00716.84
8.0.130.0050.00013.34
8.0.120.0000.00716.92
8.0.110.0000.00716.99
8.0.100.0040.00416.66
8.0.90.0040.00416.79
8.0.80.0100.01316.81
8.0.70.0050.00216.88
8.0.60.0040.00416.78
8.0.50.0070.00016.77
8.0.30.0120.00717.01
8.0.20.0120.00617.40
8.0.10.0050.00217.02
8.0.00.0100.00716.46
7.4.330.0050.00015.55
7.4.320.0000.00616.43
7.4.300.0030.00316.52
7.4.290.0070.00016.45
7.4.280.0040.00416.51
7.4.270.0000.00716.44
7.4.260.0000.00613.05
7.4.250.0030.00616.52
7.4.240.0000.00716.45
7.4.230.0040.00416.27
7.4.220.0120.00616.45
7.4.210.0050.01416.49
7.4.200.0000.00816.55
7.4.160.0020.01416.43
7.4.150.0110.00717.40
7.4.140.0130.01017.86
7.4.130.0200.00016.47
7.4.120.0160.00416.45
7.3.330.0030.00312.93
7.3.320.0050.00013.04
7.3.310.0080.00016.25
7.3.300.0000.00716.18
7.3.290.0030.00316.23
7.3.280.0070.01016.18
7.3.270.0180.00017.40
7.3.260.0100.01116.38
7.3.250.0100.00916.23
7.3.240.0110.00516.42

preferences:
42.83 ms | 401 KiB | 5 Q