3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ar = array('a' => 'b'); function cb($v) { return $v; } function keys($v, $k) { return $k; } print_r(array_map('cb', $ar)); $keys = array_map('keys', $ar, array_keys($ar)); print_r(array_map('cb', $ar, $keys));

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)
8.3.60.0070.00716.38
8.3.50.0050.01122.85
8.3.40.0000.01418.62
8.3.30.0150.00019.04
8.3.20.0040.00420.16
8.3.10.0000.00721.81
8.3.00.0080.00019.25
8.2.180.0120.00616.63
8.2.170.0040.01122.96
8.2.160.0060.00918.64
8.2.150.0050.00324.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00820.95
8.2.110.0060.00322.25
8.2.100.0080.00419.82
8.2.90.0090.00019.27
8.2.80.0000.00817.97
8.2.70.0090.00317.38
8.2.60.0080.00317.93
8.2.50.0000.00918.07
8.2.40.0090.00018.03
8.2.30.0050.00318.05
8.2.20.0030.00617.60
8.2.10.0030.00518.12
8.2.00.0040.00417.60
8.1.280.0130.00725.92
8.1.270.0040.00424.02
8.1.260.0050.00326.35
8.1.250.0100.00328.09
8.1.240.0000.00923.79
8.1.230.0070.00419.15
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0060.00317.22
8.1.180.0090.00018.10
8.1.170.0080.00018.66
8.1.160.0000.00721.96
8.1.150.0040.00418.73
8.1.140.0040.00417.35
8.1.130.0030.00317.82
8.1.120.0070.00017.30
8.1.110.0080.00017.40
8.1.100.0000.00717.30
8.1.90.0000.00717.41
8.1.80.0050.00217.37
8.1.70.0030.00317.34
8.1.60.0040.00417.43
8.1.50.0000.00817.45
8.1.40.0000.00717.48
8.1.30.0050.00317.48
8.1.20.0040.00417.48
8.1.10.0040.00417.46
8.1.00.0050.00317.39
8.0.300.0080.00018.77
8.0.290.0040.00416.75
8.0.280.0070.00018.39
8.0.270.0040.00417.23
8.0.260.0060.00017.10
8.0.250.0000.00716.95
8.0.240.0100.00016.82
8.0.230.0070.00016.69
8.0.220.0070.00016.85
8.0.210.0030.00316.80
8.0.200.0030.00316.76
8.0.190.0040.00416.88
8.0.180.0030.00516.74
8.0.170.0070.00016.73
8.0.160.0050.00216.87
8.0.150.0000.00716.79
8.0.140.0040.00416.75
8.0.130.0000.00613.25
8.0.120.0000.00816.80
8.0.110.0000.00716.83
8.0.100.0050.00216.72
8.0.90.0000.00716.66
8.0.80.0090.00916.80
8.0.70.0040.00416.69
8.0.60.0000.00716.71
8.0.50.0030.00516.70
8.0.30.0100.00916.92
8.0.20.0060.01617.40
8.0.10.0030.00316.93
8.0.00.0090.00916.74
7.4.330.0030.00315.13
7.4.320.0030.00316.46
7.4.300.0060.00016.49
7.4.290.0030.00316.43
7.4.280.0000.00716.52
7.4.270.0030.00316.51
7.4.260.0070.00016.44
7.4.250.0000.00916.39
7.4.240.0020.00516.52
7.4.230.0030.00316.58
7.4.220.0070.01016.58
7.4.210.0160.00316.57
7.4.200.0000.00816.53
7.4.160.0120.00416.24
7.4.150.0140.00417.40
7.4.140.0130.00617.86
7.4.130.0100.00816.31
7.4.120.0090.00816.53
7.4.110.0130.00316.59
7.4.100.0060.01116.46
7.4.90.0040.01216.34
7.4.80.0030.01419.39
7.4.70.0110.00516.57
7.4.60.0110.00716.28
7.4.50.0030.00516.42
7.4.40.0080.00816.27
7.4.30.0060.00916.32
7.4.00.0030.01514.77
7.3.330.0000.00513.04
7.3.320.0050.00013.20
7.3.310.0030.00316.27
7.3.300.0070.00016.11
7.3.290.0030.01616.15
7.3.280.0110.00716.16
7.3.270.0150.00317.40
7.3.260.0080.00816.21
7.3.250.0100.01016.32
7.3.240.0060.01016.02
7.3.230.0070.01016.39
7.3.210.0100.00716.22
7.3.200.0110.01219.39
7.3.190.0160.00716.16
7.3.180.0130.00316.16
7.3.170.0110.00716.27
7.3.160.0160.00316.18
7.3.120.0160.00314.62
7.3.110.0110.00714.85
7.3.100.0080.00414.86
7.3.90.0080.00414.75
7.3.80.0030.00614.61
7.3.70.0070.00714.64
7.3.60.0090.00014.61
7.3.50.0070.00714.84
7.3.40.0040.01114.36
7.3.30.0030.00614.64
7.3.20.0000.01416.40
7.3.10.0090.00616.36
7.3.00.0030.01016.50
7.2.330.0060.01016.32
7.2.320.0130.00416.54
7.2.310.0130.00316.28
7.2.300.0060.00916.56
7.2.290.0100.00716.38
7.2.250.0080.01114.83
7.2.240.0110.00414.89
7.2.230.0080.01214.84
7.2.220.0030.01315.02
7.2.210.0040.01114.62
7.2.200.0140.00014.92
7.2.190.0080.00415.00
7.2.180.0070.00715.12
7.2.170.0090.00914.78
7.1.330.0110.00615.36
7.1.320.0090.00615.76
7.1.310.0000.01415.75
7.1.300.0090.00615.70
7.1.290.0050.00515.81
7.1.280.0030.00915.74
7.1.270.0000.01215.84
7.1.260.0070.00715.88
7.1.70.0000.00717.10
7.1.60.0100.01419.40
7.1.50.0100.00716.91
7.1.00.0130.06722.36
7.0.200.0030.00616.68
7.0.140.0070.07322.04
7.0.60.0030.05719.97
7.0.50.0100.07317.88
7.0.40.0030.04720.15
7.0.30.0300.08020.13
7.0.20.0400.07320.13
7.0.10.0100.08320.20
7.0.00.0030.04720.16
5.6.280.0100.07021.12
5.6.210.0130.07720.52
5.6.200.0030.08018.20
5.6.190.0000.04720.79
5.6.180.3800.03720.48
5.6.170.0230.06020.55
5.6.160.0070.09020.42
5.6.150.0070.05718.15
5.6.140.0030.04318.18
5.6.130.0130.04018.18
5.6.120.0070.04721.02
5.6.110.0000.09021.00
5.6.100.0100.08020.98
5.6.90.0030.07321.00
5.6.80.0000.04720.39
5.5.350.0000.08320.44
5.5.340.0100.04717.99
5.5.330.0170.07020.57
5.5.320.0300.07320.20
5.5.310.0170.05320.36
5.5.300.0070.05017.91
5.5.290.0000.05717.95
5.5.280.0170.06720.90
5.5.270.0100.04320.79
5.5.260.0070.05320.97
5.5.250.0100.06020.78
5.5.240.0370.06320.16
5.4.450.0200.04319.32
5.4.440.0270.04719.20
5.4.430.0270.04319.16
5.4.420.0230.04019.54
5.4.410.0430.03719.07
5.4.400.0500.03718.85
5.4.390.0170.05719.09
5.4.380.0470.06318.79
5.4.370.0430.07018.78
5.4.360.1000.07018.81
5.4.350.0300.06718.63
5.4.340.0230.07018.79
5.4.320.0110.03612.50
5.4.310.0050.04112.50
5.4.300.0090.03912.51
5.4.290.0040.03912.50
5.4.280.0050.03612.39
5.4.270.0060.03712.40
5.4.260.0050.04012.40
5.4.250.0060.03712.40
5.4.240.0070.03512.40
5.4.230.0050.03812.39
5.4.220.0050.03612.39
5.4.210.0050.03612.39
5.4.200.0090.03412.39
5.4.190.0060.03912.39
5.4.180.0070.03612.39
5.4.170.0070.03712.40
5.4.160.0060.03612.39
5.4.150.0040.03712.39
5.4.140.0100.03412.07
5.4.130.0060.04112.05
5.4.120.0060.03612.02
5.4.110.0080.04512.01
5.4.100.0070.03612.01
5.4.90.0060.03812.02
5.4.80.0060.03812.01
5.4.70.0060.03412.01
5.4.60.0050.03712.01
5.4.50.0060.04012.00
5.4.40.0070.03411.99
5.4.30.0060.04311.99
5.4.20.0070.03412.00
5.4.10.0060.03512.00
5.4.00.0030.03911.48
5.3.290.0070.03812.80
5.3.280.0080.03812.71
5.3.270.0070.03812.72
5.3.260.0060.03912.72
5.3.250.0060.03912.72
5.3.240.0070.03512.72
5.3.230.0050.03912.71
5.3.220.0050.03912.68
5.3.210.0040.04112.68
5.3.200.0070.03612.68
5.3.190.0070.03612.67
5.3.180.0050.03812.68
5.3.170.0080.03512.67
5.3.160.0070.03512.67
5.3.150.0070.03712.67
5.3.140.0090.03512.66
5.3.130.0060.04012.66
5.3.120.0060.03912.65
5.3.110.0070.03812.66
5.3.100.0080.03812.12
5.3.90.0070.03612.10
5.3.80.0090.03912.09
5.3.70.0070.05012.09
5.3.60.0070.03812.08
5.3.50.0040.03812.03
5.3.40.0080.03512.02
5.3.30.0050.03811.98
5.3.20.0040.03711.77
5.3.10.0060.03511.73
5.3.00.0040.03911.73
5.2.170.0100.0259.22
5.2.160.0070.0279.22
5.2.150.0060.0299.23
5.2.140.0050.0309.22
5.2.130.0040.0309.18
5.2.120.0050.0279.18
5.2.110.0070.0279.18
5.2.100.0050.0299.18
5.2.90.0070.0279.18
5.2.80.0070.0299.18
5.2.70.0030.0339.18
5.2.60.0050.0319.14
5.2.50.0040.0309.11
5.2.40.0070.0269.08
5.2.30.0060.0359.05
5.2.20.0090.0349.04
5.2.10.0130.0328.95
5.2.00.0020.0318.80
5.1.60.0060.0348.09
5.1.50.0030.0338.09
5.1.40.0050.0248.07
5.1.30.0020.0288.42
5.1.20.0050.0268.45
5.1.10.0040.0268.16
5.1.00.0040.0268.17
5.0.50.0030.0216.64
5.0.40.0040.0196.50
5.0.30.0020.0336.31
5.0.20.0030.0196.28
5.0.10.0060.0176.26
5.0.00.0030.0326.25
4.4.90.0050.0144.78
4.4.80.0020.0164.76
4.4.70.0030.0164.76
4.4.60.0040.0154.75
4.4.50.0040.0144.77
4.4.40.0040.0244.71
4.4.30.0040.0144.76
4.4.20.0020.0164.85
4.4.10.0030.0154.85
4.4.00.0050.0234.76
4.3.110.0020.0164.67
4.3.100.0000.0174.66
4.3.90.0030.0144.63
4.3.80.0020.0254.58
4.3.70.0020.0154.63
4.3.60.0060.0114.63
4.3.50.0040.0144.62
4.3.40.0030.0234.54
4.3.30.0030.0163.30
4.3.20.0010.0173.29
4.3.10.0030.0143.24
4.3.00.0030.01015.91

preferences:
46.95 ms | 401 KiB | 5 Q