3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('a' => 'some value', 'b' => 'some value', 'c' => 'some value'); $b = array('a' => 'another value', 'd' => 'another value', 'e' => 'another value', 'f' => 'another value'); $c = array('b' => 'some more value', 'x' => 'some more value', 'y' => 'some more value', 'z' => 'some more value'); $merged = array_merge($a, $b); var_dump($merged);

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)
8.3.60.0110.00316.50
8.3.50.0150.00222.94
8.3.40.0150.00018.73
8.3.30.0030.01018.97
8.3.20.0040.00419.98
8.3.10.0080.00420.45
8.3.00.0080.00019.38
8.2.180.0150.00316.73
8.2.170.0120.00322.96
8.2.160.0000.01320.47
8.2.150.0080.00024.18
8.2.140.0000.00724.66
8.2.130.0080.00026.16
8.2.120.0080.00021.16
8.2.110.0050.00322.21
8.2.100.0120.00018.00
8.2.90.0000.00818.95
8.2.80.0040.00417.97
8.2.70.0030.00617.38
8.2.60.0040.00417.80
8.2.50.0030.00618.07
8.2.40.0000.00818.09
8.2.30.0080.00019.35
8.2.20.0040.00417.54
8.2.10.0080.00018.11
8.2.00.0070.00017.54
8.1.280.0060.00825.92
8.1.270.0060.00323.91
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0040.00422.06
8.1.230.0080.00318.96
8.1.220.0080.00017.74
8.1.210.0030.00518.77
8.1.200.0060.00317.13
8.1.190.0030.00617.10
8.1.180.0040.00418.10
8.1.170.0050.00318.50
8.1.160.0030.00521.94
8.1.150.0000.00718.70
8.1.140.0000.00817.35
8.1.130.0070.00017.74
8.1.120.0030.00317.41
8.1.110.0050.00317.28
8.1.100.0000.00717.40
8.1.90.0000.00817.29
8.1.80.0040.00417.43
8.1.70.0030.00317.31
8.1.60.0060.00317.48
8.1.50.0060.00317.34
8.1.40.0050.00317.32
8.1.30.0080.00017.54
8.1.20.0040.00417.56
8.1.10.0050.00317.50
8.1.00.0060.00317.41
8.0.300.0020.00518.77
8.0.290.0000.00716.75
8.0.280.0000.00718.28
8.0.270.0030.00317.05
8.0.260.0000.00817.07
8.0.250.0030.00316.91
8.0.240.0040.00416.77
8.0.230.0070.00016.84
8.0.220.0000.00716.83
8.0.210.0070.00016.86
8.0.200.0050.00216.87
8.0.190.0000.00716.80
8.0.180.0000.00716.86
8.0.170.0050.00216.78
8.0.160.0070.00016.87
8.0.150.0000.00716.78
8.0.140.0040.00416.78
8.0.130.0030.00313.18
8.0.120.0000.00816.64
8.0.110.0000.00716.72
8.0.100.0050.00316.63
8.0.90.0040.00416.78
8.0.80.0070.01016.83
8.0.70.0050.00316.69
8.0.60.0050.00316.78
8.0.50.0000.00816.86
8.0.30.0080.01116.95
8.0.20.0080.01217.40
8.0.10.0040.00416.98
8.0.00.0130.00416.50
7.4.330.0000.00515.00
7.4.320.0030.00316.50
7.4.300.0030.00316.47
7.4.290.0040.00416.36
7.4.280.0070.00016.45
7.4.270.0000.00716.45
7.4.260.0030.00316.51
7.4.250.0040.00416.38
7.4.240.0020.00516.43
7.4.230.0000.00716.60
7.4.220.0140.00916.53
7.4.210.0070.01316.49
7.4.200.0000.00716.55
7.4.160.0100.00716.25
7.4.150.0130.00617.40
7.4.140.0050.01317.86
7.4.130.0090.00816.33
7.4.120.0090.00716.43
7.4.110.0110.00716.50
7.4.100.0090.01516.48
7.4.90.0150.00416.49
7.4.80.0110.00619.39
7.4.70.0080.00816.54
7.4.60.0070.01016.36
7.4.50.0000.00816.50
7.4.40.0090.00916.36
7.4.30.0150.00016.50
7.4.00.0040.01414.68
7.3.330.0000.00513.01
7.3.320.0050.00012.97
7.3.310.0070.00015.97
7.3.300.0040.00416.08
7.3.290.0110.00916.17
7.3.280.0090.00616.16
7.3.270.0110.00717.40
7.3.260.0120.00616.33
7.3.250.0120.00816.21
7.3.240.0140.00316.42
7.3.230.0060.01216.39
7.3.210.0160.00016.49
7.3.200.0110.00719.39
7.3.190.0120.00916.14
7.3.180.0070.00816.10
7.3.170.0060.01416.27
7.3.160.0070.01016.24
7.2.330.0140.00416.51
7.2.320.0100.00716.42
7.2.310.0060.01616.52
7.2.300.0040.01816.31
7.2.290.0060.01816.39
7.2.80.0070.01016.25
7.2.60.0060.01516.46
7.1.200.0090.00315.60
7.1.100.0000.01117.92
7.1.70.0000.00817.13
7.1.60.0060.01919.61
7.1.50.0130.00916.89
7.1.00.0100.06722.30
7.0.200.0000.01216.56
7.0.140.0000.07722.05
7.0.60.0100.06319.86
7.0.50.0030.04317.85
7.0.40.0070.08720.20
7.0.30.0070.07320.01
7.0.20.0330.03720.12
7.0.10.0070.08320.16
7.0.00.0000.05720.12
5.6.280.0070.07020.93
5.6.210.0100.07720.69
5.6.200.0070.05318.17
5.6.190.0030.09320.35
5.6.180.0130.05020.49
5.6.170.0270.06720.55
5.6.160.0070.05320.32
5.6.150.0070.08318.18
5.6.140.0100.07718.14
5.6.130.0070.03718.21
5.6.120.0070.05321.12
5.6.110.0130.08320.99
5.6.100.0030.06321.13
5.6.90.0070.04321.02
5.6.80.0130.04020.53
5.5.350.4270.04320.43
5.5.340.0030.08317.95
5.5.330.0070.05020.12
5.5.320.0300.03320.55
5.5.310.0270.07320.20
5.5.300.0030.06717.98
5.5.290.0130.07717.95
5.5.280.0030.06020.77
5.5.270.0130.06020.88
5.5.260.0030.05320.79
5.5.250.0070.06720.57
5.5.240.0170.07720.33
5.4.450.3330.04019.10
5.4.440.3130.03319.41
5.4.430.3070.03319.57
5.4.420.3200.04319.48
5.4.410.3300.04019.11
5.4.400.3100.03319.14
5.4.390.3300.04019.13
5.4.380.3270.03718.93
5.4.370.3270.03718.80
5.4.360.3270.04019.21
5.4.350.3370.03319.13
5.4.340.3000.04019.23
5.4.320.3300.04019.09
5.4.310.3300.03318.82
5.4.300.3300.03719.08
5.4.290.3270.03719.22
5.4.280.3270.03719.08
5.4.270.3030.03719.24
5.4.260.3330.03319.13
5.4.250.3370.03019.10
5.4.240.3000.03719.21
5.4.230.3170.04019.21
5.4.220.3230.03719.09
5.4.210.0400.05319.08
5.4.200.0030.04019.04
5.4.190.0070.07018.88
5.4.180.1130.06719.24
5.4.170.3070.03719.12
5.4.160.3270.04018.80
5.4.150.3270.04019.21
5.4.140.3170.03016.17
5.4.130.3170.02716.26
5.4.120.3300.03716.38
5.4.110.3270.03016.34
5.4.100.2770.04016.39
5.4.90.3100.03016.39
5.4.80.3000.03716.41
5.4.70.2770.03716.46
5.4.60.2530.04016.45
5.4.50.3030.03316.20
5.4.40.3130.03316.36
5.4.30.2800.03716.36
5.4.20.3070.03316.18
5.4.10.2800.03316.38
5.4.00.2830.03015.76
5.3.290.2800.03714.52
5.3.280.3200.03314.45
5.3.270.2870.03714.43
5.3.260.2830.03014.70
5.3.250.3070.03314.54
5.3.240.3500.03714.59
5.3.230.3330.04014.55
5.3.220.3270.04014.41
5.3.210.3330.04714.52
5.3.200.3400.03714.61
5.3.190.3130.03314.43
5.3.180.3300.03714.43
5.3.170.3270.03714.40
5.3.160.3270.04014.39
5.3.150.3230.03714.44
5.3.140.3200.03714.40
5.3.130.3270.04014.56
5.3.120.3270.03714.49
5.3.110.3170.03714.60
5.3.100.3000.04013.89
5.3.90.3370.04313.86
5.3.80.3230.03713.97
5.3.70.2930.03713.82
5.3.60.3130.04313.84
5.3.50.2970.03713.78
5.3.40.3000.03313.80
5.3.30.3270.04013.76
5.3.20.3170.03313.55
5.3.10.3430.03313.75
5.3.00.2730.03313.41
5.2.170.2530.03011.16
5.2.160.2830.02310.98
5.2.150.2670.02311.30
5.2.140.2830.03011.08
5.2.130.2770.03011.18
5.2.120.2770.03010.99
5.2.110.2870.02010.94
5.2.100.2800.03311.12
5.2.90.2730.02710.93
5.2.80.2770.02711.18
5.2.70.2800.02710.96
5.2.60.2830.02711.09
5.2.50.2530.03010.87
5.2.40.2230.03310.84
5.2.30.2030.02710.86
5.2.20.2430.03310.79
5.2.10.2230.03010.81
5.2.00.2330.03010.79
5.1.60.2070.02310.78
5.1.50.2300.02310.78
5.1.40.2030.02010.78
5.1.30.2130.03010.78
5.1.20.2330.02310.78
5.1.10.2270.03310.78
5.1.00.2330.03010.78
5.0.50.1170.02310.78
5.0.40.1100.02010.78
5.0.30.1270.03010.78
5.0.20.1270.02310.78
5.0.10.1270.02710.78
5.0.00.1030.03010.78
4.4.90.1300.02010.78
4.4.80.1070.01710.78
4.4.70.1130.01710.78
4.4.60.1230.02010.78
4.4.50.1130.01710.78
4.4.40.1270.03010.78
4.4.30.1300.01310.78
4.4.20.1130.02010.78
4.4.10.1230.02010.78
4.4.00.1000.02710.78
4.3.110.1130.01310.78
4.3.100.1000.01710.78
4.3.90.1270.01710.78
4.3.80.1270.03010.78
4.3.70.1270.02310.78
4.3.60.1270.01310.78
4.3.50.1300.02010.78
4.3.40.1270.02710.78
4.3.30.0500.01710.78
4.3.20.0500.01310.78
4.3.10.0700.02710.78
4.3.00.0600.02310.78

preferences:
54.33 ms | 401 KiB | 5 Q