3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = ["Alice", "Bob", "Carol", "Dan", "Eve", "Frank", "Grace", "Heidi"]; $k = 4; $y = array_intersect_key($x, array_flip(array_rand($x, $k))); print_r($y);

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)
7.2.90.0410.01014.59
7.2.80.0560.00814.68
7.2.70.0940.00914.83
7.2.60.0740.00715.02
7.2.50.0700.00514.89
7.2.40.1030.00614.94
7.2.30.0900.00814.90
7.2.20.0700.01014.85
7.2.10.0600.00614.73
7.2.00.0690.00614.89
7.1.210.0490.00913.78
7.1.200.0680.00713.77
7.1.190.0970.01113.88
7.1.180.0490.01113.89
7.1.170.0680.00713.83
7.1.160.0610.00813.92
7.1.150.0750.00513.92
7.1.140.0660.00713.69
7.1.130.0770.00813.75
7.1.120.0630.00613.70
7.1.110.0720.00813.75
7.1.100.0670.01213.73
7.1.90.0880.00513.52
7.1.80.0710.00813.55
7.1.70.0730.00213.57
7.1.60.0850.01231.60
7.1.50.0870.01331.45
7.1.40.0870.00831.40
7.1.30.0950.01431.71
7.1.20.0900.00631.60
7.1.10.1080.00513.41
7.1.00.0630.00213.64
7.0.310.0500.01113.50
7.0.300.0600.01013.35
7.0.290.0830.00313.46
7.0.280.0680.00613.28
7.0.270.0650.00613.62
7.0.260.0630.01313.44
7.0.250.0820.00413.27
7.0.240.0540.00613.37
7.0.230.0710.00613.52
7.0.220.0910.00013.63
7.0.210.0740.00913.52
7.0.200.0850.01013.24
7.0.190.0650.00913.50
7.0.180.0660.00713.21
7.0.170.0730.01313.61
7.0.160.0640.00713.58
7.0.150.0840.00413.34
7.0.140.0840.00013.59
7.0.130.1100.00613.37
7.0.120.0710.00613.54
7.0.110.0590.00913.56
7.0.100.0580.00313.47
7.0.90.0690.00613.35
7.0.80.0690.00413.34
7.0.70.0790.01013.47
7.0.60.0720.00313.53
7.0.50.0780.01013.31
7.0.40.0750.00313.31
7.0.30.0880.00313.72
7.0.20.0670.00713.30
7.0.10.0740.00013.63
7.0.00.0860.00613.67
5.6.300.0060.00913.75
5.6.290.0200.00014.37
5.6.280.0100.01014.17
5.6.270.0050.01614.38
5.6.260.0150.00514.10
5.6.250.0160.00414.12
5.6.240.0150.00414.39
5.6.230.0130.00914.20
5.6.220.0160.00614.05
5.6.210.0150.00714.11
5.6.200.0090.01314.38
5.6.190.0230.00014.09
5.6.180.0080.01314.21
5.6.170.0160.00813.91
5.6.160.0170.00514.50
5.6.150.0150.00614.23
5.6.140.0110.01114.18
5.6.130.0160.00514.20
5.6.120.0140.00914.13
5.6.110.0070.01413.97
5.6.100.0110.01114.14
5.6.90.0160.00614.26
5.6.80.0050.01314.09
5.6.70.0180.00514.16
5.6.60.0190.00314.11
5.6.50.0130.00914.06
5.6.40.0150.00914.10
5.6.30.0180.00514.21
5.6.20.0100.01014.25
5.6.10.0040.01714.14
5.6.00.0070.01514.18
5.5.380.0100.00511.16
5.5.370.0170.00010.79
5.5.360.0140.00310.77
5.5.350.0110.00410.88
5.5.340.0090.00610.76
5.5.330.0080.00811.16
5.5.320.0080.00910.84
5.5.310.0140.00311.12
5.5.300.0100.00710.98
5.5.290.0110.00311.16
5.5.280.0120.00411.04
5.5.270.0070.01011.09
5.5.260.0060.00911.05
5.5.250.0080.00811.07
5.5.240.0140.00011.13
5.5.230.0110.00710.80
5.5.220.0170.00011.18
5.5.210.0080.00811.09
5.5.200.0140.00211.16
5.5.190.0100.00510.64
5.5.180.0170.00011.11
5.5.170.0090.01213.85
5.5.160.0110.00611.04
5.5.150.0060.00910.71
5.5.140.0060.01111.14
5.5.130.0120.00411.12
5.5.120.0110.00410.95
5.5.110.0100.00710.99
5.5.100.0120.00410.87
5.5.90.0080.00910.97
5.5.80.0000.01610.88
5.5.70.0130.00310.75
5.5.60.0150.00010.96
5.5.50.0100.00511.10
5.5.40.0120.00510.79
5.5.30.0080.01010.83
5.5.20.0130.00311.13
5.5.10.0120.00511.13
5.5.00.0160.00011.09
5.4.450.0130.00311.15
5.4.440.0080.00810.77
5.4.430.0140.00311.09
5.4.420.0090.00711.16
5.4.410.0100.00710.63
5.4.400.0110.00410.82
5.4.390.0130.00311.22
5.4.380.0090.00610.89
5.4.370.0120.00311.22
5.4.360.0000.01711.18
5.4.350.0100.00710.74
5.4.340.0090.00710.98
5.4.330.0140.00410.75
5.4.320.0150.00311.14
5.4.310.0120.00510.84
5.4.300.0100.00711.05
5.4.290.0090.00610.96
5.4.280.0090.00810.57
5.4.270.0100.00711.20
5.4.260.0090.00910.95
5.4.250.0170.00010.94
5.4.240.0080.00810.54
5.4.230.0130.00310.95
5.4.220.0100.00510.88
5.4.210.0150.00010.69
5.4.200.0170.00010.94
5.4.190.0150.00210.88
5.4.180.0140.00310.69
5.4.170.0080.00810.82
5.4.160.0110.00310.85
5.4.150.0110.00510.80
5.4.140.0170.00011.32
5.4.130.0070.00810.91
5.4.120.0070.01010.66
5.4.110.0110.00410.91
5.4.100.0100.00511.21
5.4.90.0110.00610.90
5.4.80.0080.00711.07
5.4.70.0110.00310.93
5.4.60.0080.00810.87
5.4.50.0140.00311.00
5.4.40.0140.00010.57
5.4.30.0070.00711.15
5.4.20.0110.00310.88
5.4.10.0030.01110.91
5.4.00.0150.00310.66
5.3.290.0110.00410.46
5.3.280.0080.00410.46
5.3.270.0050.01010.46
5.3.260.0100.00410.46
5.3.250.0130.00310.46
5.3.240.0070.00810.46
5.3.230.0120.00210.46
5.3.220.0110.00410.46
5.3.210.0060.01010.46
5.3.200.0150.00010.46
5.3.190.0120.00310.46
5.3.180.0070.00710.46
5.3.170.0090.00510.46
5.3.160.0110.00410.46
5.3.150.0120.00310.46
5.3.140.0110.00410.46
5.3.130.0130.00210.46
5.3.120.0070.00710.46
5.3.110.0160.00010.46
5.3.100.0080.00610.46
5.3.90.0120.00310.46
5.3.80.0080.00410.46
5.3.70.0100.00310.46
5.3.60.0080.00410.46
5.3.50.0040.00810.46
5.3.40.0070.00710.46
5.3.30.0100.00710.46
5.3.20.0070.00710.46
5.3.10.0090.00510.46
5.3.00.0000.01310.46
5.2.170.0080.00310.46
5.2.160.0050.00810.46
5.2.150.0040.00810.46
5.2.140.0080.00410.46
5.2.130.0090.00210.46
5.2.120.0120.00010.46
5.2.110.0100.00010.46
5.2.100.0090.00310.46
5.2.90.0090.00310.46
5.2.80.0110.00010.46
5.2.70.0000.01010.46
5.2.60.0090.00310.46
5.2.50.0080.00510.46
5.2.40.0120.00010.46
5.2.30.0050.00510.46
5.2.20.0080.00410.46
5.2.10.0110.00010.46
5.2.00.0040.00710.46
5.1.60.0080.00310.46
5.1.50.0060.00210.46
5.1.40.0000.01110.46
5.1.30.0050.00510.46
5.1.20.0040.00810.46
5.1.10.0080.00010.46
5.1.00.0000.00910.46
5.0.50.0080.00010.46
5.0.40.0040.00410.46
5.0.30.0070.00010.46
5.0.20.0040.00410.46
5.0.10.0060.00210.46
5.0.00.0070.00210.46
4.4.90.0040.00410.46
4.4.80.0040.00410.46
4.4.70.0060.00010.46
4.4.60.0000.00710.46
4.4.50.0080.00010.46
4.4.40.0020.00610.46
4.4.30.0000.00710.46
4.4.20.0050.00310.46
4.4.10.0040.00410.46
4.4.00.0040.00410.46
4.3.110.0040.00410.46
4.3.100.0060.00010.46
4.3.90.0030.00310.46
4.3.80.0060.00010.46
4.3.70.0040.00210.46
4.3.60.0000.00710.46
4.3.50.0030.00310.46
4.3.40.0070.00010.46
4.3.30.0000.00610.46
4.3.20.0070.00010.46
4.3.10.0060.00010.46
4.3.00.0000.00610.46

preferences:
48.37 ms | 401 KiB | 5 Q