3v4l.org

run code in 300+ PHP versions simultaneously
<?php $o1 = array('foo' => '1', 'bar' => '2'); $o2 = array('foo' => '3', 'baz' => '4', 'qux' => 5); $o3 = array_intersect_key($o2, array_fill_keys(array('foo', 'qux'), null)); print_r($o3 + $o1); print_r(array_merge($o1, $o3));

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)
8.3.40.0040.01118.68
8.3.30.0070.00719.01
8.3.20.0070.00020.29
8.3.10.0040.00423.60
8.3.00.0040.00419.26
8.2.170.0110.00422.96
8.2.160.0130.00020.53
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00726.16
8.2.120.0030.00620.91
8.2.110.0080.00322.25
8.2.100.0090.00318.16
8.2.90.0040.00419.17
8.2.80.0040.00417.97
8.2.70.0050.00317.50
8.2.60.0000.00817.80
8.2.50.0030.00718.07
8.2.40.0040.00418.09
8.2.30.0000.00717.90
8.2.20.0030.00517.68
8.2.10.0000.00717.97
8.2.00.0050.00217.61
8.1.270.0080.00023.99
8.1.260.0050.00226.35
8.1.250.0100.00328.09
8.1.240.0060.00322.70
8.1.230.0040.00819.61
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0060.00317.00
8.1.180.0050.00318.10
8.1.170.0060.00318.47
8.1.160.0000.00821.88
8.1.150.0000.00818.81
8.1.140.0040.00417.38
8.1.130.0030.00317.73
8.1.120.0080.00017.34
8.1.110.0070.00017.44
8.1.100.0000.00717.31
8.1.90.0040.00417.41
8.1.80.0030.00417.25
8.1.70.0030.00317.40
8.1.60.0060.00317.51
8.1.50.0000.00717.40
8.1.40.0030.00617.35
8.1.30.0000.00817.57
8.1.20.0000.00817.58
8.1.10.0000.00717.31
8.1.00.0040.00417.38
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.41
8.0.270.0000.00717.19
8.0.260.0000.00717.15
8.0.250.0030.00316.84
8.0.240.0030.00316.88
8.0.230.0040.00416.82
8.0.220.0000.00716.91
8.0.210.0040.00416.76
8.0.200.0000.00616.98
8.0.190.0000.00816.93
8.0.180.0000.00816.80
8.0.170.0050.00216.81
8.0.160.0040.00416.98
8.0.150.0070.00016.75
8.0.140.0000.00716.80
8.0.130.0000.00813.26
8.0.120.0000.00916.86
8.0.110.0000.00816.79
8.0.100.0000.00716.83
8.0.90.0040.00416.75
8.0.80.0130.01016.91
8.0.70.0040.00416.80
8.0.60.0070.00016.77
8.0.50.0070.00016.77
8.0.30.0120.00817.10
8.0.20.0140.00617.40
8.0.10.0050.00316.89
8.0.00.0070.01116.70
7.4.330.0000.00615.00
7.4.320.0040.00416.47
7.4.300.0000.00716.33
7.4.290.0030.00316.36
7.4.280.0040.00416.51
7.4.270.0070.00016.52
7.4.260.0070.00016.31
7.4.250.0040.00416.46
7.4.240.0050.00216.54
7.4.230.0070.00016.33
7.4.220.0110.00816.53
7.4.210.0110.00716.59
7.4.200.0000.00716.36
7.4.160.0100.01316.29
7.4.150.0110.00817.40
7.4.140.0090.00817.86
7.4.130.0080.01016.32
7.4.120.0140.00316.42
7.4.110.0040.01416.45
7.4.100.0170.00016.37
7.4.90.0130.00416.44
7.4.80.0080.00819.39
7.4.70.0110.00716.51
7.4.60.0100.00716.52
7.4.50.0040.00416.48
7.4.40.0140.00416.41
7.4.30.0090.00916.45
7.4.00.0060.00615.02
7.3.330.0000.00512.95
7.3.320.0050.00213.10
7.3.310.0000.00816.29
7.3.300.0030.00316.10
7.3.290.0100.00316.26
7.3.280.0070.00916.20
7.3.270.0170.00017.40
7.3.260.0080.01216.28
7.3.250.0130.00716.30
7.3.240.0070.01016.21
7.3.230.0100.00616.46
7.3.210.0060.01016.08
7.3.200.0120.00919.39
7.3.190.0070.01516.30
7.3.180.0120.00416.28
7.3.170.0120.00616.31
7.3.160.0130.00316.30
7.3.120.0060.00914.62
7.3.110.0060.00614.73
7.3.100.0070.00714.55
7.3.90.0030.01314.51
7.3.80.0090.00314.50
7.3.70.0040.00814.73
7.3.60.0000.01314.89
7.3.50.0040.01114.48
7.3.40.0040.01114.73
7.3.30.0060.00614.66
7.3.20.0110.00316.77
7.3.10.0110.00516.45
7.3.00.0100.00516.70
7.2.330.0060.01616.64
7.2.320.0060.01016.54
7.2.310.0090.00916.75
7.2.300.0080.00816.63
7.2.290.0080.00816.40
7.2.240.0040.01115.07
7.2.230.0030.01014.89
7.2.220.0000.01315.07
7.2.210.0000.01014.78
7.2.200.0000.01714.85
7.2.190.0000.00814.82
7.2.180.0050.00515.09
7.2.170.0060.00914.76
7.2.160.0110.00314.73
7.2.150.0100.00316.79
7.2.140.0100.00716.95
7.2.130.0060.00816.78
7.2.120.0050.00816.84
7.2.110.0040.00816.79
7.2.100.0030.00916.86
7.2.90.0110.00416.81
7.2.80.0040.00916.87
7.2.70.0010.01216.81
7.2.60.0060.00716.74
7.2.50.0060.00916.67
7.2.40.0070.00716.84
7.2.30.0060.00816.93
7.2.20.0070.00616.89
7.2.10.0060.01016.84
7.2.00.0080.00816.74
7.1.330.0040.00815.69
7.1.320.0070.01015.62
7.1.310.0030.01015.61
7.1.300.0040.01115.84
7.1.290.0090.00615.80
7.1.280.0060.00915.68
7.1.270.0120.00315.71
7.1.260.0000.01715.80
7.1.250.0040.00715.76
7.1.200.0060.00315.72
7.1.70.0040.01117.15
7.1.60.0070.01819.40
7.1.50.0140.01016.92
7.1.00.0030.07722.57
7.0.200.0000.00816.46
7.0.140.0070.07021.92
7.0.60.0070.03719.90
7.0.50.0100.07717.78
7.0.40.0130.05020.27
7.0.30.0430.06320.02
7.0.20.0200.04720.12
7.0.10.0100.06320.02
7.0.00.0100.08720.30
5.6.280.0030.07321.11
5.6.210.0130.08020.60
5.6.200.0130.07718.23
5.6.190.0070.08720.42
5.6.180.0430.07020.42
5.6.170.0270.08020.49
5.6.160.0030.07720.52
5.6.150.0100.06718.11
5.6.140.0130.04318.18
5.6.130.0100.06318.18
5.6.120.0100.06320.87
5.6.110.0100.07021.01
5.6.100.0170.08021.00
5.6.90.0000.04721.09
5.6.80.0100.07020.38
5.5.350.0200.06720.43
5.5.340.0030.08018.02
5.5.330.0070.07320.43
5.5.320.0330.03320.13
5.5.310.0400.06720.32
5.5.300.0070.07317.95
5.5.290.0130.07717.89
5.5.280.0030.08320.80
5.5.270.0100.07320.82
5.5.260.0030.06320.86
5.5.250.0200.05720.70
5.5.240.0170.07020.15
5.4.450.0230.03719.54
5.4.440.0030.05019.21
5.4.430.0130.03719.42
5.4.420.0470.04319.56
5.4.410.0230.04719.28
5.4.400.0300.04319.08
5.4.390.0200.04018.91
5.4.380.0370.05718.61
5.4.370.0400.05018.71
5.4.360.0370.04718.71
5.4.350.0330.06018.58
5.4.340.0430.04718.53
5.4.320.0070.04012.46
5.4.310.0080.03612.46
5.4.300.0060.03512.46
5.4.290.0090.03312.45
5.4.280.0030.03612.35
5.4.270.0060.03512.35
5.4.260.0050.03712.35
5.4.250.0070.03712.35
5.4.240.0060.03812.35
5.4.230.0110.03512.34
5.4.220.0040.03912.34
5.4.210.0080.03512.34
5.4.200.0060.03612.34
5.4.190.0080.03812.34
5.4.180.0040.03912.34
5.4.170.0070.03512.35
5.4.160.0050.04212.35
5.4.150.0080.03512.34
5.4.140.0060.03612.02
5.4.130.0040.03612.02
5.4.120.0070.03411.97
5.4.110.0070.04111.96
5.4.100.0080.03311.96
5.4.90.0100.03811.96
5.4.80.0090.03711.97
5.4.70.0090.03111.96
5.4.60.0040.03911.96
5.4.50.0060.04211.96
5.4.40.0060.03511.95
5.4.30.0040.03711.95
5.4.20.0050.03911.95
5.4.10.0040.03611.95
5.4.00.0080.03911.44
5.3.290.0080.03712.80
5.3.280.0080.03412.71
5.3.270.0070.04312.73
5.3.260.0080.04012.72
5.3.250.0050.03912.72
5.3.240.0080.03812.72
5.3.230.0070.03612.71
5.3.220.0090.03312.68
5.3.210.0060.03912.68
5.3.200.0070.04512.68
5.3.190.0070.04312.68
5.3.180.0080.03412.67
5.3.170.0090.04412.67
5.3.160.0030.04012.67
5.3.150.0110.03112.67
5.3.140.0090.03512.66
5.3.130.0100.03812.66
5.3.120.0050.04112.66
5.3.110.0100.03612.66
5.3.100.0090.03512.12
5.3.90.0090.03412.08
5.3.80.0060.03512.07
5.3.70.0060.03612.07
5.3.60.0070.03612.06
5.3.50.0040.03912.00
5.3.40.0030.04012.00
5.3.30.0050.03511.95
5.3.20.0060.03611.72
5.3.10.0060.03411.69
5.3.00.0080.03411.68
5.2.170.0050.0309.18
5.2.160.0060.0279.18
5.2.150.0060.0309.18
5.2.140.0060.0289.17
5.2.130.0030.0339.13
5.2.120.0070.0259.14
5.2.110.0050.0289.14
5.2.100.0040.0289.14
5.2.90.0070.0269.14
5.2.80.0090.0259.13
5.2.70.0060.0289.13
5.2.60.0030.0319.09
5.2.50.0060.0289.06
5.2.40.0040.0289.04
5.2.30.0030.0319.01
5.2.20.0050.0299.00
5.2.10.0060.0258.94
5.2.00.0070.0298.79
5.1.60.0040.0258.07
5.1.50.0040.0288.07
5.1.40.0040.0278.05
5.1.30.0030.0278.39
5.1.20.0030.0278.42
5.1.10.0040.0298.14
5.1.00.0030.0308.14
5.0.50.0050.0196.62
5.0.40.0010.0216.48
5.0.30.0040.0306.29
5.0.20.0030.0196.27
5.0.10.0030.0226.23
5.0.00.0080.0286.23
4.4.90.0030.0194.78
4.4.80.0050.0174.75
4.4.70.0060.0134.75
4.4.60.0020.0174.75
4.4.50.0030.0194.77
4.4.40.0020.0264.71
4.4.30.0030.0154.76
4.4.20.0040.0174.84
4.4.10.0020.0184.84
4.4.00.0050.0274.76
4.3.110.0030.0204.67
4.3.100.0010.0204.67
4.3.90.0040.0184.63
4.3.80.0040.0264.58
4.3.70.0020.0154.63
4.3.60.0060.0154.62
4.3.50.0050.0144.63
4.3.40.0010.0254.54
4.3.30.0050.0133.28
4.3.20.0020.0183.26
4.3.10.0010.0163.22
4.3.00.0070.01315.64

preferences:
42.09 ms | 400 KiB | 5 Q