3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = ['foo' => [1, 2], 'bar' => 1]; $array2 = ['foo' => [3, 4], 'bar' => 2]; var_dump(array_merge_recursive($array1, $array2));

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)
8.3.60.0100.01018.30
8.3.50.0120.00316.47
8.3.40.0120.00318.59
8.3.30.0140.00318.54
8.3.20.0040.00418.80
8.3.10.0040.00420.77
8.3.00.0060.00317.64
8.2.180.0070.00718.18
8.2.170.0100.00322.96
8.2.160.0150.00018.74
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00019.82
8.2.120.0030.01026.35
8.2.110.0040.00421.91
8.2.100.0080.00317.59
8.2.90.0090.00017.75
8.2.80.0040.00418.83
8.2.70.0080.00017.93
8.2.60.0040.00417.93
8.2.50.0040.00418.10
8.2.40.0040.00720.92
8.2.30.0000.00719.23
8.2.20.0000.00717.86
8.2.10.0000.00718.05
8.2.00.0040.00419.40
8.1.280.0110.00725.92
8.1.270.0050.00322.06
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0110.00719.42
8.1.230.0040.00820.95
8.1.220.0060.00318.54
8.1.210.0040.00418.77
8.1.200.0040.00417.23
8.1.190.0050.00317.00
8.1.180.0030.00718.10
8.1.170.0000.00818.46
8.1.160.0030.00318.81
8.1.150.0000.00718.70
8.1.140.0000.00817.73
8.1.130.0040.00718.98
8.1.120.0000.00717.34
8.1.110.0040.00417.24
8.1.100.0040.00417.27
8.1.90.0040.00417.39
8.1.80.0040.00417.37
8.1.70.0030.00317.46
8.1.60.0030.00617.50
8.1.50.0050.00317.34
8.1.40.0000.00717.32
8.1.30.0000.00917.53
8.1.20.0040.00417.49
8.1.10.0000.00717.45
8.1.00.0060.00317.36
8.0.300.0060.00318.77
8.0.290.0000.00716.63
8.0.280.0020.00518.38
8.0.270.0070.00017.18
8.0.260.0060.00317.10
8.0.250.0000.00816.86
8.0.240.0000.00816.78
8.0.230.0000.00716.85
8.0.220.0040.00416.81
8.0.210.0040.00416.72
8.0.200.0000.00716.89
8.0.190.0050.00316.90
8.0.180.0030.00516.86
8.0.170.0000.00816.82
8.0.160.0040.00416.80
8.0.150.0070.00016.78
8.0.140.0000.00716.67
8.0.130.0030.00313.29
8.0.120.0040.00416.67
8.0.110.0000.00816.73
8.0.100.0020.00516.88
8.0.90.0000.00716.68
8.0.80.0140.00516.82
8.0.70.0050.00216.88
8.0.60.0000.00716.68
8.0.50.0020.00516.80
8.0.30.0100.00816.89
8.0.20.0160.00717.40
8.0.10.0000.00717.00
8.0.00.0100.00816.68
7.4.330.0050.00015.55
7.4.320.0030.00316.44
7.4.300.0000.00616.45
7.4.290.0070.00016.50
7.4.280.0040.00416.51
7.4.270.0040.00416.54
7.4.260.0030.00316.48
7.4.250.0030.00316.49
7.4.240.0000.00716.45
7.4.230.0030.00316.59
7.4.220.0030.00616.54
7.4.210.0050.00916.54
7.4.200.0000.00816.41
7.4.160.0080.01016.46
7.4.140.0110.00917.86
7.4.130.0130.00316.29
7.4.120.0120.00816.44
7.4.110.0110.00616.40
7.4.100.0130.00316.42
7.4.90.0140.00416.53
7.4.80.0040.01819.39
7.4.70.0030.01416.33
7.4.60.0070.01016.38
7.4.50.0030.01416.27
7.4.40.0120.01216.39
7.4.00.0090.00614.91
7.3.330.0030.00313.05
7.3.320.0060.00013.11
7.3.310.0030.00315.96
7.3.300.0030.00316.21
7.3.290.0070.00016.04
7.3.280.0110.00716.12
7.3.260.0100.01316.14
7.3.240.0110.00716.31
7.3.230.0100.00716.18
7.3.210.0150.00316.35
7.3.200.0130.00316.16
7.3.190.0110.00616.16
7.3.180.0090.01216.21
7.3.170.0140.00316.45
7.3.160.0040.01216.06
7.2.330.0050.01416.16
7.2.320.0050.01316.46
7.2.310.0060.01016.05
7.2.300.0130.00916.21
7.2.290.0030.02016.47
7.2.60.0130.01014.54
7.2.50.0360.01014.64
7.2.40.0110.01114.69
7.2.30.0110.01014.95
7.2.20.0290.00814.75
7.2.10.0890.00614.81
7.2.00.0150.00614.80
7.1.200.0000.01415.56
7.1.170.0180.00813.32
7.1.160.2580.01116.13
7.1.150.0160.00816.41
7.1.140.0160.00816.71
7.1.130.0260.00916.45
7.1.120.0330.00916.51
7.1.110.0110.01015.94
7.1.100.0170.01315.79
7.1.90.0110.01115.92
7.1.80.0110.01216.04
7.1.70.0110.01315.20
7.1.60.0400.01033.24
7.1.51.4580.01432.96
7.1.41.8160.01332.37
7.1.32.1660.01432.51
7.1.21.5500.02032.45
7.1.11.3600.01114.62
7.1.01.1430.00915.00

preferences:
71.07 ms | 400 KiB | 5 Q