3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array1 = array( 'group 1' => array( 'test 1', 'test 2', 'test 3' ) ); $array2 = array( 'group 1' => array( 'test 1', 'test 4' ), 'group 2' => array( 'test2 1', 'test2 2', 'test 4' ) ); $merged = array_merge($array1, $array2); print_r($merged, true);

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)
8.3.60.0100.00318.18
8.3.50.0110.00822.05
8.3.40.0180.00018.46
8.3.30.0060.01218.82
8.3.20.0040.00420.07
8.3.10.0030.00620.52
8.3.00.0000.00819.66
8.2.180.0150.00716.48
8.2.170.0100.00322.96
8.2.160.0080.00620.45
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00022.19
8.2.110.0060.00621.12
8.2.100.0090.00317.78
8.2.90.0040.00419.28
8.2.80.0030.00517.97
8.2.70.0040.00417.38
8.2.60.0040.00417.80
8.2.50.0030.00518.07
8.2.40.0000.00918.09
8.2.30.0080.00019.22
8.2.20.0070.00017.65
8.2.10.0050.00217.92
8.2.00.0080.00017.52
8.1.280.0120.00325.92
8.1.270.0040.00423.87
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0060.00321.28
8.1.230.0110.00019.48
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.22
8.1.190.0000.00817.22
8.1.180.0020.00518.10
8.1.170.0040.00418.65
8.1.160.0050.00221.86
8.1.150.0000.00718.86
8.1.140.0050.00217.27
8.1.130.0000.00717.82
8.1.120.0070.00017.36
8.1.110.0030.00617.35
8.1.100.0030.00517.26
8.1.90.0080.00017.32
8.1.80.0030.00317.27
8.1.70.0000.00717.25
8.1.60.0080.00017.41
8.1.50.0040.00417.35
8.1.40.0070.00317.30
8.1.30.0000.00817.57
8.1.20.0000.00717.55
8.1.10.0000.00817.41
8.1.00.0030.00517.39
8.0.300.0070.00018.77
8.0.290.0060.00316.63
8.0.280.0000.00718.35
8.0.270.0040.00417.16
8.0.260.0000.00717.23
8.0.250.0070.00016.76
8.0.240.0040.00416.84
8.0.230.0070.00016.88
8.0.220.0030.00316.80
8.0.210.0030.00316.72
8.0.200.0000.00616.85
8.0.190.0030.00616.75
8.0.180.0040.00416.83
8.0.170.0000.00816.84
8.0.160.0000.00816.83
8.0.150.0030.00316.79
8.0.140.0040.00816.67
8.0.130.0030.00313.20
8.0.120.0040.00416.68
8.0.110.0070.00016.83
8.0.100.0040.00316.63
8.0.90.0040.00416.82
8.0.80.0030.01016.83
8.0.70.0040.00416.86
8.0.60.0050.00216.69
8.0.50.0000.00816.84
8.0.30.0100.01116.90
8.0.20.0130.00517.40
8.0.10.0040.00416.91
8.0.00.0090.00816.82
7.4.330.0030.00315.00
7.4.320.0030.00316.59
7.4.300.0000.00616.34
7.4.290.0040.00416.53
7.4.280.0030.00316.51
7.4.270.0040.00416.53
7.4.260.0030.00316.48
7.4.250.0080.00016.41
7.4.240.0050.00216.55
7.4.230.0030.00316.27
7.4.220.0100.01016.46
7.4.210.0040.01116.63
7.4.200.0000.00716.24
7.4.160.0030.01416.33
7.4.150.0140.00317.40
7.4.140.0120.00517.86
7.4.130.0110.00716.46
7.4.120.0070.01016.39
7.4.110.0070.01716.52
7.4.100.0150.00316.49
7.4.90.0100.00716.30
7.4.80.0100.00616.52
7.4.70.0130.00316.39
7.4.60.0000.01616.48
7.4.50.0080.00016.28
7.4.40.0060.00916.32
7.4.30.0060.00916.52
7.4.00.0040.01214.71
7.3.330.0060.00013.07
7.3.320.0000.00512.98
7.3.310.0020.00516.09
7.3.300.0040.00416.18
7.3.290.0070.00716.17
7.3.280.0090.00916.15
7.3.270.0060.01217.40
7.3.260.0090.00916.38
7.3.250.0070.01016.38
7.3.240.0080.00816.09
7.3.230.0060.01116.39
7.3.210.0100.01516.48
7.3.200.0100.01319.39
7.3.190.0090.01116.31
7.3.180.0090.00616.09
7.3.170.0100.00716.34
7.3.160.0080.01116.39
7.3.120.0110.00414.58
7.3.110.0100.00714.62
7.3.100.0070.00714.72
7.3.90.0000.00914.46
7.3.80.0030.00714.83
7.3.70.0040.01114.78
7.3.60.0090.00314.67
7.3.50.0000.01414.71
7.3.40.0070.00714.81
7.3.30.0030.00614.55
7.3.20.0030.01216.68
7.3.10.0070.00716.63
7.3.00.0080.00816.63
7.2.330.0100.00716.62
7.2.320.0060.01716.60
7.2.310.0150.00416.65
7.2.300.0110.01016.42
7.2.290.0110.01116.68
7.2.250.0080.01014.83
7.2.240.0030.01614.72
7.2.230.0030.01414.54
7.2.220.0000.01314.78
7.2.210.0040.00814.86
7.2.200.0150.00014.83
7.2.190.0040.01114.81
7.2.180.0060.00915.05
7.2.170.0100.00614.50
7.2.60.0070.01016.73
7.2.00.0040.00819.11
7.1.330.0030.01315.36
7.1.320.0090.00015.52
7.1.310.0040.00715.70
7.1.300.0030.01015.68
7.1.290.0040.00815.84
7.1.280.0030.00715.71
7.1.270.0070.00715.70
7.1.260.0070.00715.75
7.1.200.0060.00615.64
7.1.100.0070.01018.26
7.1.70.0000.00717.04
7.1.60.0140.01019.32
7.1.50.0070.01716.85
7.1.00.0030.07722.28
7.0.200.0040.00416.60
7.0.140.0030.07321.96
7.0.60.0100.06719.91
7.0.50.0030.07717.88
7.0.40.0200.07320.15
7.0.30.0200.04020.09
7.0.20.0230.06020.33
7.0.10.0030.06020.30
7.0.00.0030.08720.32
5.6.280.0030.07321.09
5.6.210.0030.08320.66
5.6.200.0030.04018.18
5.6.190.0070.04320.42
5.6.180.0570.06720.61
5.6.170.0400.07020.47
5.6.160.0070.04320.54
5.6.150.0070.04018.15
5.6.140.0130.06718.18
5.6.130.0070.03718.16
5.6.120.0170.05020.73
5.6.110.0000.09020.98
5.6.100.0030.09020.98
5.6.90.0130.07721.07
5.6.80.0100.04320.50
5.5.350.0100.07320.36
5.5.340.0100.08017.95
5.5.330.0070.07020.18
5.5.320.0100.08020.33
5.5.310.0270.05020.41
5.5.300.0070.03718.08
5.5.290.0170.06717.90
5.5.280.0100.07720.76
5.5.270.0100.08020.74
5.5.260.0030.04020.72
5.5.250.0030.04320.79
5.5.240.0100.05720.25
5.4.450.0270.06019.18
5.4.440.0870.06019.31
5.4.430.0800.05719.69
5.4.420.0700.06019.55
5.4.410.0830.05019.50
5.4.400.0600.06319.06
5.4.390.0630.06018.98
5.4.380.0370.05718.66
5.4.370.0330.05018.55
5.4.360.0330.06718.61
5.4.350.0300.05718.62
5.4.340.0270.07018.53
5.4.320.0040.04112.49
5.4.310.0070.04012.48
5.4.300.0030.04412.49
5.4.290.0050.04512.48
5.4.280.0030.04912.38
5.4.270.0060.03712.38
5.4.260.0060.03612.38
5.4.250.0040.03812.38
5.4.240.0040.03812.38
5.4.230.0140.03212.37
5.4.220.0080.03312.37
5.4.210.0100.03012.38
5.4.200.0030.04012.38
5.4.190.0070.03412.37
5.4.180.0080.03312.37
5.4.170.0040.03912.38
5.4.160.0050.03712.38
5.4.150.0070.03912.37
5.4.140.0070.03612.05
5.4.130.0040.03612.04
5.4.120.0050.04412.01
5.4.110.0070.03512.00
5.4.100.0070.03312.00
5.4.90.0050.03812.00
5.4.80.0070.03512.00
5.4.70.0040.03612.00
5.4.60.0050.03412.00
5.4.50.0080.03812.00
5.4.40.0050.03511.98
5.4.30.0060.03511.98
5.4.20.0100.03011.98
5.4.10.0030.03611.98
5.4.00.0090.03911.48
5.3.290.0040.04012.80
5.3.280.0050.03812.71
5.3.270.0080.03712.72
5.3.260.0080.04012.72
5.3.250.0050.03712.72
5.3.240.0060.03712.72
5.3.230.0080.03512.71
5.3.220.0040.03912.68
5.3.210.0030.04112.68
5.3.200.0070.03612.68
5.3.190.0080.03612.68
5.3.180.0070.03612.68
5.3.170.0040.03912.67
5.3.160.0060.03612.67
5.3.150.0050.04712.68
5.3.140.0050.03812.66
5.3.130.0100.04212.66
5.3.120.0050.05212.66
5.3.110.0070.04012.66
5.3.100.0080.03512.12
5.3.90.0050.03712.09
5.3.80.0060.03612.08
5.3.70.0080.03512.09
5.3.60.0070.03612.07
5.3.50.0070.03412.01
5.3.40.0110.03712.01
5.3.30.0100.03111.98
5.3.20.0050.03711.75
5.3.10.0050.03411.72
5.3.00.0040.03811.71
5.2.170.0040.0319.21
5.2.160.0060.0289.21
5.2.150.0050.0349.21
5.2.140.0040.0319.21
5.2.130.0060.0279.16
5.2.120.0060.0279.17
5.2.110.0050.0299.18
5.2.100.0070.0329.17
5.2.90.0020.0339.17
5.2.80.0040.0339.17
5.2.70.0060.0349.16
5.2.60.0030.0339.12
5.2.50.0050.0339.09
5.2.40.0050.0279.06
5.2.30.0050.0329.04
5.2.20.0040.0289.03
5.2.10.0080.0248.94
5.2.00.0070.0288.80
5.1.60.0030.0248.07
5.1.50.0060.0228.06
5.1.40.0040.0308.04
5.1.30.0080.0218.40
5.1.20.0040.0268.42
5.1.10.0070.0278.14
5.1.00.0040.0338.14
5.0.50.0040.0266.62
5.0.40.0060.0176.48
5.0.30.0030.0326.29
5.0.20.0030.0216.27
5.0.10.0040.0206.25
5.0.00.0070.0276.23
4.4.90.0040.0154.78
4.4.80.0010.0164.76
4.4.70.0050.0204.76
4.4.60.0040.0174.76
4.4.50.0030.0184.77
4.4.40.0030.0294.71
4.4.30.0050.0164.75
4.4.20.0030.0184.85
4.4.10.0040.0174.85
4.4.00.0040.0234.76
4.3.110.0050.0134.67
4.3.100.0020.0174.66
4.3.90.0010.0164.64
4.3.80.0030.0234.58
4.3.70.0020.0164.63
4.3.60.0030.0204.63
4.3.50.0000.0174.63
4.3.40.0010.0294.54
4.3.30.0030.0163.29
4.3.20.0020.0163.27
4.3.10.0030.0153.22
4.3.00.0100.0306.98

preferences:
109.73 ms | 401 KiB | 5 Q