3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('x' => 1, 'y' => 2, 'z' => 3, 'a' => 4, 'b' => 4); $b = array('x', 'z', 'a'); $result = array_intersect_key($a, array_fill_keys($b, 1)); print_r($result);

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)
8.3.70.0140.00718.18
8.3.60.0080.00816.50
8.3.50.0110.00721.80
8.3.40.0110.00418.64
8.3.30.0080.00618.84
8.3.20.0040.00420.30
8.3.10.0080.00023.71
8.3.00.0050.00319.13
8.2.180.0100.00316.38
8.2.170.0150.00422.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0100.00326.16
8.2.120.0040.00422.09
8.2.110.0090.00022.11
8.2.100.0080.00417.72
8.2.90.0000.00819.09
8.2.80.0000.00817.97
8.2.70.0070.00317.63
8.2.60.0030.00617.89
8.2.50.0040.00418.07
8.2.40.0060.00319.75
8.2.30.0000.00717.96
8.2.20.0040.00417.71
8.2.10.0060.00318.09
8.2.00.0070.00317.70
8.1.280.0190.00025.92
8.1.270.0000.00923.96
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0060.00323.70
8.1.230.0050.00519.08
8.1.220.0060.00317.74
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0050.00317.18
8.1.180.0000.00918.10
8.1.170.0040.00418.52
8.1.160.0030.00321.87
8.1.150.0000.00718.49
8.1.140.0060.00317.28
8.1.130.0030.00317.81
8.1.120.0040.00417.41
8.1.110.0060.00317.23
8.1.100.0060.00317.44
8.1.90.0000.00717.37
8.1.80.0030.00317.35
8.1.70.0000.00717.39
8.1.60.0040.00417.51
8.1.50.0000.00817.32
8.1.40.0030.00517.31
8.1.30.0060.00317.54
8.1.20.0050.00217.42
8.1.10.0070.00017.45
8.1.00.0000.00817.23
8.0.300.0000.00820.74
8.0.290.0040.00417.05
8.0.280.0030.00318.28
8.0.270.0000.00717.16
8.0.260.0040.00417.21
8.0.250.0050.00516.82
8.0.240.0030.00516.83
8.0.230.0000.00716.84
8.0.220.0000.00816.86
8.0.210.0000.00716.81
8.0.200.0030.00516.91
8.0.190.0030.00616.73
8.0.180.0000.00716.71
8.0.170.0040.00416.87
8.0.160.0040.00416.75
8.0.150.0040.00416.73
8.0.140.0030.00716.78
8.0.130.0030.00313.28
8.0.120.0040.00416.73
8.0.110.0000.00816.81
8.0.100.0000.00816.70
8.0.90.0050.00316.86
8.0.80.0030.01316.70
8.0.70.0000.00716.84
8.0.60.0070.00016.61
8.0.50.0070.00016.68
8.0.30.0090.01317.09
8.0.20.0090.00917.40
8.0.10.0040.00416.80
8.0.00.0100.01016.57
7.4.330.0050.00015.00
7.4.320.0000.00716.55
7.4.300.0030.00316.53
7.4.290.0030.00316.38
7.4.280.0040.00416.51
7.4.270.0000.00716.48
7.4.260.0040.00416.45
7.4.250.0040.00416.47
7.4.240.0050.00216.47
7.4.230.0030.00316.34
7.4.220.0030.01216.58
7.4.210.0080.00916.60
7.4.200.0000.00816.54
7.4.190.0000.00716.39
7.4.160.0070.01716.25
7.4.150.0150.00417.40
7.4.140.0100.00817.86
7.4.130.0130.00516.59
7.4.120.0050.01316.37
7.4.110.0140.00416.48
7.4.100.0160.00416.28
7.4.90.0190.00316.58
7.4.80.0090.00919.39
7.4.70.0000.01716.51
7.4.60.0030.01316.28
7.4.50.0000.00816.18
7.4.40.0110.00722.77
7.4.30.0090.00616.32
7.4.00.0050.01314.69
7.3.330.0030.00312.93
7.3.320.0030.00313.08
7.3.310.0000.00715.89
7.3.300.0040.00416.22
7.3.290.0030.01216.09
7.3.280.0080.01116.12
7.3.270.0090.00917.40
7.3.260.0160.00316.52
7.3.250.0090.00916.22
7.3.240.0150.00716.21
7.3.230.0080.00816.39
7.3.210.0060.01416.08
7.3.200.0100.00616.46
7.3.190.0040.01216.02
7.3.180.0100.00716.35
7.3.170.0180.00416.52
7.3.160.0060.00916.42
7.3.120.0060.01114.49
7.3.110.0070.01014.70
7.3.100.0120.00414.70
7.3.90.0120.00614.63
7.3.80.0080.00514.39
7.3.70.0070.01114.41
7.3.60.0030.01214.48
7.3.50.0030.01314.63
7.3.40.0030.01714.60
7.3.30.0090.00914.35
7.3.20.0030.00916.70
7.3.10.0030.01016.50
7.3.00.0030.01016.53
7.2.330.0060.01016.50
7.2.320.0140.00416.59
7.2.310.0110.00616.41
7.2.300.0070.01016.20
7.2.290.0070.01116.61
7.2.250.0100.00615.08
7.2.240.0030.00714.55
7.2.230.0030.01015.04
7.2.220.0040.00815.00
7.2.210.0030.01215.09
7.2.200.0120.00014.76
7.2.190.0000.00915.05
7.2.180.0080.01115.01
7.2.170.0100.01014.59
7.2.60.0070.00716.42
7.2.00.0040.01419.04
7.1.330.0090.00615.97
7.1.320.0040.01115.61
7.1.310.0080.00815.86
7.1.300.0060.01015.74
7.1.290.0030.01415.49
7.1.280.0030.00815.89
7.1.270.0030.01015.40
7.1.260.0000.01215.72
7.1.200.0040.01115.67
7.1.100.0190.00815.71
7.1.70.0070.00317.14
7.1.60.0140.01019.46
7.1.50.0120.00916.75
7.1.00.0030.07722.27
7.0.200.0280.00614.67
7.0.140.0000.07322.18
7.0.60.0130.07319.84
7.0.50.0030.05017.86
7.0.40.0030.08319.96
7.0.30.0600.05320.11
7.0.20.0300.06720.13
7.0.10.0200.08720.12
7.0.00.0000.09020.03
5.6.280.0100.06321.15
5.6.210.0100.06720.51
5.6.200.0200.07718.11
5.6.190.0070.08720.77
5.6.180.0330.07720.45
5.6.170.0200.05720.41
5.6.160.0070.05020.52
5.6.150.0070.08718.09
5.6.140.0030.04718.12
5.6.130.0000.05718.11
5.6.120.0200.07020.98
5.6.110.0100.08021.01
5.6.100.0130.07720.88
5.6.90.0070.08720.96
5.6.80.0000.04020.53
5.6.70.0370.07320.50
5.5.350.0230.06320.42
5.5.340.0130.05017.99
5.5.330.0200.04720.28
5.5.320.0270.05020.18
5.5.310.0300.04720.29
5.5.300.0070.03717.92
5.5.290.0000.04317.87
5.5.280.0100.08320.79
5.5.270.0030.05720.95
5.5.260.0100.07320.86
5.5.250.0030.04020.57
5.5.240.0170.07320.23
5.4.450.0800.06319.48
5.4.440.0170.05319.51
5.4.430.0800.05319.25
5.4.420.0130.05719.59
5.4.410.0070.06019.49
5.4.400.0800.05718.80
5.4.390.1170.06319.15
5.4.380.0270.06018.71
5.4.370.0270.06018.71
5.4.360.0300.05018.52
5.4.350.0330.05318.68
5.4.340.0300.05718.59
5.4.320.0050.03712.45
5.4.310.0070.03612.46
5.4.300.0020.04112.45
5.4.290.0030.05012.44
5.4.280.0090.04412.33
5.4.270.0110.05512.34
5.4.260.0070.04812.34
5.4.250.0080.05512.34
5.4.240.0110.05012.33
5.4.230.0070.05812.32
5.4.220.0100.05112.32
5.4.210.0050.05712.33
5.4.200.0120.06612.32
5.4.190.0110.04112.32
5.4.180.0070.04412.32
5.4.170.0170.04612.33
5.4.160.0060.03912.33
5.4.150.0140.06012.33
5.4.140.0090.04912.01
5.4.130.0110.04412.00
5.4.120.0060.05011.96
5.4.110.0090.07211.95
5.4.100.0110.06211.95
5.4.90.0100.06411.95
5.4.80.0130.06211.95
5.4.70.0050.03911.95
5.4.60.0030.04211.95
5.4.50.0090.04211.95
5.4.40.0110.04511.94
5.4.30.0100.04211.93
5.4.20.0080.04611.94
5.4.10.0110.05011.94
5.4.00.0100.03811.42
5.3.290.0070.03812.80
5.3.280.0120.04912.70
5.3.270.0110.05712.73
5.3.260.0080.05612.72
5.3.250.0080.04512.72
5.3.240.0060.04712.72
5.3.230.0110.05112.71
5.3.220.0130.06612.68
5.3.210.0080.05912.68
5.3.200.0100.05012.68
5.3.190.0080.05212.68
5.3.180.0120.05712.67
5.3.170.0040.05712.66
5.3.160.0030.05512.67
5.3.150.0080.05212.67
5.3.140.0070.05212.66
5.3.130.0110.06512.66
5.3.120.0100.04812.66
5.3.110.0070.04112.66
5.3.100.0060.04612.12
5.3.90.0070.04312.08
5.3.80.0050.04112.07
5.3.70.0070.04612.08
5.3.60.0080.03512.07
5.3.50.0060.03712.00
5.3.40.0070.03812.00
5.3.30.0020.05011.96
5.3.20.0090.05011.72
5.3.10.0080.04411.69
5.3.00.0120.04711.68
5.2.170.0080.0409.18
5.2.160.0100.0429.18
5.2.150.0080.0429.18
5.2.140.0050.0449.18
5.2.130.0090.0369.13
5.2.120.0180.0369.13
5.2.110.0040.0329.14
5.2.100.0060.0399.14
5.2.90.0110.0499.14
5.2.80.0080.0439.13
5.2.70.0080.0409.13
5.2.60.0120.0349.09
5.2.50.0120.0399.05
5.2.40.0060.0329.03
5.2.30.0080.0569.00
5.2.20.0110.0259.00
5.2.10.0050.0308.93
5.2.00.0090.0278.79
5.1.60.0070.0258.07
5.1.50.0060.0278.06
5.1.40.0080.0258.05
5.1.30.0070.0358.39
5.1.20.0060.0288.41
5.1.10.0050.0278.14
5.1.00.0060.0318.14
5.0.50.0080.0276.61
5.0.40.0010.0226.48
5.0.30.0080.0506.29
5.0.20.0050.0276.26
5.0.10.0050.0286.24
5.0.00.0050.0396.23
4.4.90.0010.0254.78
4.4.80.0080.0574.75
4.4.70.0070.0264.76
4.4.60.0030.0244.75
4.4.50.0060.0284.77
4.4.40.0050.0554.71
4.4.30.0040.0244.76
4.4.20.0100.0274.85
4.4.10.0030.0224.85
4.4.00.0040.0304.76
4.3.110.0080.0174.67
4.3.100.0040.0194.66
4.3.90.0030.0174.64
4.3.80.0040.0314.59
4.3.70.0040.0204.63
4.3.60.0040.0214.63
4.3.50.0040.0224.63
4.3.40.0080.0584.54
4.3.30.0010.0223.28
4.3.20.0030.0203.26
4.3.10.0090.0353.22
4.3.00.0370.01710.53

preferences:
38.49 ms | 401 KiB | 5 Q