3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array( 'aaa' => 'AAA' ); $b = array( 'bbb' => 'BBB' ); $c = array( 'ccc' => 'CCC' ); $r = array_merge($a, $b); var_dump($r);

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)
8.3.60.0170.00318.43
8.3.50.0160.00422.01
8.3.40.0070.00718.63
8.3.30.0090.00918.84
8.3.20.0090.00020.16
8.3.10.0090.00020.41
8.3.00.0030.00519.25
8.2.180.0110.00716.63
8.2.170.0110.00422.96
8.2.160.0100.01020.38
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0060.00322.15
8.2.110.0030.00620.39
8.2.100.0050.00517.91
8.2.90.0000.00819.09
8.2.80.0000.00917.97
8.2.70.0100.00017.38
8.2.60.0080.00017.80
8.2.50.0030.01218.07
8.2.40.0040.00418.09
8.2.30.0040.00419.23
8.2.20.0040.00417.66
8.2.10.0040.00418.04
8.2.00.0040.00417.58
8.1.280.0210.00025.92
8.1.270.0030.00623.77
8.1.260.0020.00526.35
8.1.250.0040.00428.09
8.1.240.0050.00523.79
8.1.230.0080.00319.22
8.1.220.0000.00717.74
8.1.210.0030.00518.77
8.1.200.0000.01017.35
8.1.190.0080.00017.23
8.1.180.0030.00518.10
8.1.170.0040.00818.59
8.1.160.0030.00521.93
8.1.150.0000.00718.92
8.1.140.0040.00417.36
8.1.130.0000.00717.82
8.1.120.0000.00817.38
8.1.110.0040.00417.41
8.1.100.0040.00417.29
8.1.90.0070.00017.41
8.1.80.0040.00417.24
8.1.70.0040.00417.39
8.1.60.0050.00217.51
8.1.50.0050.00217.36
8.1.40.0000.00717.39
8.1.30.0000.00817.66
8.1.20.0040.00417.55
8.1.10.0040.00417.39
8.1.00.0040.00417.23
8.0.300.0070.00018.77
8.0.290.0080.00016.63
8.0.280.0070.00018.37
8.0.270.0030.00317.24
8.0.260.0030.00317.22
8.0.250.0060.00016.79
8.0.240.0000.00616.84
8.0.230.0030.00316.89
8.0.220.0030.00316.84
8.0.210.0050.00216.86
8.0.200.0060.00016.79
8.0.190.0040.00416.75
8.0.180.0040.00416.77
8.0.170.0000.00816.74
8.0.160.0000.00716.82
8.0.150.0030.00316.75
8.0.140.0030.00416.73
8.0.130.0000.00513.25
8.0.120.0030.00516.69
8.0.110.0030.00516.86
8.0.100.0040.00416.68
8.0.90.0000.00816.77
8.0.80.0060.01616.80
8.0.70.0000.00816.60
8.0.60.0000.00716.69
8.0.50.0000.00816.64
8.0.30.0140.00516.95
8.0.20.0080.01117.40
8.0.10.0000.00916.98
8.0.00.0110.01016.70
7.4.330.0020.00215.02
7.4.320.0000.00616.39
7.4.300.0060.00016.56
7.4.290.0030.00316.44
7.4.280.0030.00616.36
7.4.270.0030.00316.34
7.4.260.0080.00016.55
7.4.250.0060.00316.48
7.4.240.0020.00516.47
7.4.230.0000.00616.51
7.4.220.0060.01316.55
7.4.210.0060.01016.55
7.4.200.0060.00016.50
7.4.160.0080.00816.39
7.4.150.0070.01117.40
7.4.140.0110.00917.86
7.4.130.0110.00816.31
7.4.120.0140.00916.43
7.4.110.0130.00416.48
7.4.100.0070.01116.16
7.4.90.0100.01316.47
7.4.80.0080.00818.63
7.4.70.0070.01016.42
7.4.60.0160.00016.35
7.4.50.0030.00516.51
7.4.40.0090.00616.27
7.4.30.0060.01016.24
7.4.00.0110.00414.52
7.3.330.0000.00612.89
7.3.320.0030.00313.04
7.3.310.0030.00316.12
7.3.300.0030.00316.12
7.3.290.0100.00416.16
7.3.280.0110.00716.17
7.3.270.0110.00617.40
7.3.260.0090.01216.11
7.3.250.0110.00816.29
7.3.240.0100.00716.16
7.3.230.0110.00616.39
7.3.210.0080.00916.23
7.3.200.0110.01119.39
7.3.190.0100.00716.21
7.3.180.0100.00716.21
7.3.170.0100.01316.33
7.3.160.0140.00716.29
7.2.330.0030.01316.48
7.2.320.0030.01416.66
7.2.310.0160.00316.60
7.2.300.0030.01316.49
7.2.290.0090.01416.41
7.2.60.0090.00616.83
7.2.00.0070.00719.11
7.1.200.0080.00315.39
7.1.100.0110.00718.18
7.1.70.0040.00417.05
7.1.60.0070.01719.32
7.1.50.0130.00716.98
7.1.00.0000.08022.40
7.0.200.0080.00316.66
7.0.140.0070.06722.00
7.0.60.0100.08320.06
7.0.50.0070.05717.82
7.0.40.0070.07320.24
7.0.30.0330.06020.21
7.0.20.0330.06320.11
7.0.10.0070.05320.09
7.0.00.0100.07720.08
5.6.280.0070.06720.88
5.6.210.0070.06020.65
5.6.200.0070.05318.20
5.6.190.0070.08020.33
5.6.180.0400.05720.63
5.6.170.0370.08020.53
5.6.160.0070.05020.38
5.6.150.0100.08318.12
5.6.140.0070.08318.16
5.6.130.0070.04718.11
5.6.120.0070.04320.93
5.6.110.0130.08020.97
5.6.100.0100.07021.00
5.6.90.0100.08020.96
5.6.80.0070.06720.53
5.5.350.0170.08320.43
5.5.340.0200.07018.01
5.5.330.0070.04720.38
5.5.320.0370.07720.37
5.5.310.0100.04720.20
5.5.300.0100.04717.89
5.5.290.0170.07717.99
5.5.280.0230.06020.96
5.5.270.0070.08320.84
5.5.260.0130.08020.86
5.5.250.0070.08020.68
5.5.240.1970.03720.04
5.4.450.0130.05719.25
5.4.440.1100.07019.55
5.4.430.0770.05719.43
5.4.420.1200.05019.54
5.4.410.1100.06019.38
5.4.400.0830.05318.95
5.4.390.1200.06319.31
5.4.380.0300.07718.57
5.4.370.0330.05018.59
5.4.360.0230.05718.63
5.4.350.0330.05718.74
5.4.340.0430.05318.73
5.4.320.0020.03912.45
5.4.310.0050.03812.45
5.4.300.0070.03512.45
5.4.290.0100.03612.45
5.4.280.0060.03512.34
5.4.270.0060.03812.34
5.4.260.0080.04112.35
5.4.250.0040.03912.34
5.4.240.0030.03812.34
5.4.230.0050.04012.34
5.4.220.0050.03912.34
5.4.210.0040.03612.34
5.4.200.0060.03712.34
5.4.190.0060.03612.33
5.4.180.0030.03812.33
5.4.170.0060.03712.34
5.4.160.0030.03912.34
5.4.150.0040.03712.34
5.4.140.0080.03512.02
5.4.130.0060.03312.01
5.4.120.0060.03411.96
5.4.110.0050.03511.96
5.4.100.0070.03511.96
5.4.90.0080.03411.96
5.4.80.0050.04311.96
5.4.70.0070.03811.96
5.4.60.0080.03411.96
5.4.50.0040.03611.96
5.4.40.0070.04411.95
5.4.30.0070.03311.95
5.4.20.0090.03911.95
5.4.10.0070.03811.95
5.4.00.0080.03911.44
5.3.290.0080.03712.80
5.3.280.0090.04212.71
5.3.270.0090.04312.72
5.3.260.0100.04112.72
5.3.250.0070.03712.72
5.3.240.0100.03612.72
5.3.230.0050.04612.71
5.3.220.0070.04212.68
5.3.210.0100.03612.68
5.3.200.0040.03812.68
5.3.190.0070.03612.68
5.3.180.0080.05312.68
5.3.170.0100.03412.67
5.3.160.0090.03612.67
5.3.150.0080.04012.67
5.3.140.0070.04012.66
5.3.130.0050.04312.66
5.3.120.0090.03412.66
5.3.110.0030.04012.66
5.3.100.0030.03812.12
5.3.90.0070.03512.09
5.3.80.0090.03312.07
5.3.70.0070.03912.08
5.3.60.0040.03812.07
5.3.50.0050.04112.00
5.3.40.0040.03812.00
5.3.30.0040.03611.95
5.3.20.0050.03911.72
5.3.10.0050.03511.69
5.3.00.0070.03411.68
5.2.170.0030.0329.18
5.2.160.0040.0289.18
5.2.150.0030.0329.18
5.2.140.0070.0279.17
5.2.130.0060.0299.13
5.2.120.0050.0279.13
5.2.110.0030.0299.14
5.2.100.0020.0319.14
5.2.90.0040.0299.14
5.2.80.0050.0299.14
5.2.70.0050.0299.13
5.2.60.0040.0309.09
5.2.50.0060.0289.05
5.2.40.0030.0289.03
5.2.30.0060.0289.01
5.2.20.0040.0289.00
5.2.10.0050.0388.92
5.2.00.0080.0338.77
5.1.60.0030.0288.06
5.1.50.0040.0268.05
5.1.40.0030.0258.04
5.1.30.0060.0318.39
5.1.20.0050.0268.41
5.1.10.0060.0248.14
5.1.00.0080.0218.13
5.0.50.0040.0236.62
5.0.40.0040.0256.48
5.0.30.0030.0316.29
5.0.20.0040.0226.26
5.0.10.0000.0246.24
5.0.00.0060.0336.23
4.4.90.0020.0164.78
4.4.80.0050.0214.76
4.4.70.0020.0154.76
4.4.60.0030.0154.75
4.4.50.0030.0184.77
4.4.40.0020.0274.71
4.4.30.0000.0214.76
4.4.20.0040.0144.84
4.4.10.0030.0154.85
4.4.00.0030.0254.76
4.3.110.0040.0174.67
4.3.100.0010.0194.66
4.3.90.0050.0124.64
4.3.80.0040.0234.58
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0010.0174.63
4.3.40.0010.0254.54
4.3.30.0010.0173.28
4.3.20.0010.0173.26
4.3.10.0020.0153.21
4.3.00.0030.0236.87

preferences:
40.8 ms | 401 KiB | 5 Q