3v4l.org

run code in 300+ PHP versions simultaneously
<?php $keys = ['a','b','c','d','e','f','g','h','i','z']; $private = [ 'a','b','c','d' ]; $aliases = [ 'z' => 'a' ]; print_r(array_intersect_key($private, array_flip($aliases)));

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)
8.3.40.0040.01118.43
8.3.30.0070.00718.83
8.3.20.0080.00020.09
8.3.10.0060.00321.78
8.3.00.0050.00319.13
8.2.170.0090.00622.96
8.2.160.0120.00320.53
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0030.00519.36
8.2.110.0060.00319.21
8.2.100.0110.00017.50
8.2.90.0040.00419.19
8.2.80.0060.00317.97
8.2.70.0040.00417.50
8.2.60.0080.00017.77
8.2.50.0040.00418.07
8.2.40.0050.00319.95
8.2.30.0040.00417.86
8.2.20.0030.00517.60
8.2.10.0000.00818.03
8.2.00.0040.00417.55
8.1.270.0030.00618.86
8.1.260.0040.00426.35
8.1.250.0000.00828.09
8.1.240.0000.00922.19
8.1.230.0080.00417.53
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.10
8.1.190.0000.00817.22
8.1.180.0040.00418.10
8.1.170.0050.00218.91
8.1.160.0040.00422.04
8.1.150.0050.00318.74
8.1.140.0080.00017.33
8.1.130.0000.00717.88
8.1.120.0040.00417.27
8.1.110.0040.00417.27
8.1.100.0040.00417.25
8.1.90.0000.00717.21
8.1.80.0000.00817.33
8.1.70.0000.00717.34
8.1.60.0030.00617.41
8.1.50.0000.00817.50
8.1.40.0040.00417.34
8.1.30.0080.00017.60
8.1.20.0000.00817.55
8.1.10.0040.00417.45
8.1.00.0050.00317.22
8.0.300.0040.00418.77
8.0.290.0070.00016.75
8.0.280.0040.00418.36
8.0.270.0020.00517.14
8.0.260.0000.00617.21
8.0.250.0040.00416.79
8.0.240.0000.00716.95
8.0.230.0000.00716.90
8.0.220.0030.00316.80
8.0.210.0050.00216.78
8.0.200.0070.00016.84
8.0.190.0000.00716.89
8.0.180.0040.00416.79
8.0.170.0040.00416.83
8.0.160.0000.00716.86
8.0.150.0030.00616.80
8.0.140.0000.00716.71
8.0.130.0000.00513.20
8.0.120.0000.00816.76
8.0.110.0040.00416.70
8.0.100.0050.00316.62
8.0.90.0070.00016.88
8.0.80.0000.01516.75
8.0.70.0040.00416.83
8.0.60.0040.00416.84
8.0.50.0040.00416.82
8.0.30.0090.01116.92
8.0.20.0060.01917.40
8.0.10.0030.00317.00
8.0.00.0100.00816.58
7.4.330.0060.00015.03
7.4.320.0030.00316.32
7.4.300.0060.00016.56
7.4.290.0000.00716.47
7.4.280.0030.00516.52
7.4.270.0000.00716.38
7.4.260.0000.00716.50
7.4.250.0080.00016.24
7.4.240.0020.00516.44
7.4.230.0030.00316.32
7.4.220.0070.01116.52
7.4.210.0060.01316.63
7.4.200.0030.00316.17
7.4.160.0080.00816.44
7.4.150.0070.01417.40
7.4.140.0110.00817.86
7.4.130.0090.00916.31
7.4.120.0100.00716.47
7.4.110.0160.00616.48
7.4.100.0130.00316.44
7.4.90.0080.00816.22
7.4.80.0060.01519.39
7.4.70.0150.00716.50
7.4.60.0120.00616.21
7.4.50.0000.00716.51
7.4.40.0100.01016.55
7.4.30.0120.00616.35
7.4.10.0070.00815.49
7.4.00.0080.00615.12
7.3.330.0030.00313.00
7.3.320.0040.00812.97
7.3.310.0040.00416.05
7.3.300.0030.00316.12
7.3.290.0080.00816.18
7.3.280.0090.00916.10
7.3.270.0090.00917.40
7.3.260.0080.00816.42
7.3.250.0120.00516.28
7.3.240.0170.00016.12
7.3.230.0180.00616.39
7.3.210.0070.01016.14
7.3.200.0120.01119.39
7.3.190.0170.00316.30
7.3.180.0120.00616.18
7.3.170.0100.00616.54
7.3.160.0120.00916.33
7.3.130.0100.00715.56
7.3.120.0100.00815.08
7.3.110.0130.00315.27
7.3.100.0110.00415.13
7.3.90.0080.00515.25
7.3.80.0080.00615.07
7.3.70.0070.00915.17
7.3.60.0050.01215.03
7.3.50.0040.00915.08
7.3.40.0030.01115.08
7.3.30.0020.00915.01
7.3.20.0040.01217.04
7.3.10.0110.00316.69
7.3.00.0100.00516.76
7.2.330.0170.00316.25
7.2.320.0130.00316.65
7.2.310.0040.01416.35
7.2.300.0130.00316.14
7.2.290.0070.01016.23
7.2.260.0050.01215.60
7.2.250.0080.01015.31
7.2.240.0060.01015.29
7.2.230.0080.01015.30
7.2.220.0050.01015.30
7.2.210.0090.00715.29
7.2.200.0050.00815.23
7.2.190.0070.00815.25
7.2.180.0070.00715.37
7.2.170.0030.00915.17
7.2.160.0060.00815.40
7.2.150.0080.00617.47
7.2.140.0060.00617.47
7.2.130.0060.01017.13
7.2.120.0050.00917.02
7.2.110.0040.01017.07
7.2.100.0060.01017.06
7.2.90.0040.00916.99
7.2.80.0090.00617.05
7.2.70.0130.00517.00
7.2.60.0090.00616.85
7.2.50.0060.00917.12
7.2.40.0070.00917.03
7.2.30.0090.00616.95
7.2.20.0110.00617.13
7.2.10.0060.01216.96
7.2.00.0090.00617.70
7.1.330.0080.00616.25
7.1.320.0100.00416.13
7.1.310.0080.00516.28
7.1.300.0060.01116.12
7.1.290.0080.00916.19
7.1.280.0050.00816.25
7.1.270.0040.00716.28
7.1.260.0060.00916.23
7.1.250.0080.00815.99
7.1.240.0030.00916.47
7.1.230.0040.00816.37
7.1.220.0070.00516.53
7.1.210.0080.00616.47
7.1.200.0030.00916.10
7.1.190.0030.01016.50
7.1.180.0040.00816.35
7.1.170.0030.00816.53
7.1.160.0050.00716.58
7.1.150.0040.00816.53
7.1.140.0040.01116.46
7.1.130.0040.01116.48
7.1.120.0050.00916.59
7.1.110.0080.00616.28
7.1.100.0060.00616.86
7.1.90.0040.01016.29
7.1.80.0060.00916.44
7.1.70.0040.00716.65
7.1.60.0030.01317.51
7.1.50.0040.01016.44
7.1.40.0040.01116.26
7.1.30.0020.01216.48
7.1.20.0090.00516.31
7.1.10.0040.00816.38
7.1.00.0070.02818.53
7.0.330.0090.00316.08
7.0.320.0060.00416.06
7.0.310.0030.00716.18
7.0.300.0050.01116.23
7.0.290.0080.00716.15
7.0.280.0100.00315.92
7.0.270.0070.00916.14
7.0.260.0050.00716.13
7.0.250.0020.01116.16
7.0.240.0080.00016.15
7.0.230.0050.00816.10
7.0.220.0060.00816.02
7.0.210.0040.00716.00
7.0.200.0040.00816.31
7.0.190.0090.00316.13
7.0.180.0070.00316.30
7.0.170.0090.00616.09
7.0.160.0040.00816.04
7.0.150.0050.00416.20
7.0.140.0070.02718.15
7.0.130.0110.00316.21
7.0.120.0010.01216.23
7.0.110.0030.00815.95
7.0.100.0060.00716.02
7.0.90.0130.00216.19
7.0.80.0100.00516.17
7.0.70.0050.01015.96
7.0.60.0070.03217.46
7.0.50.0030.03216.79
7.0.40.0080.02316.10
7.0.30.0130.01516.18
7.0.20.0130.02116.24
7.0.10.0100.02816.19
7.0.00.0080.03016.13
5.6.400.0030.00814.96
5.6.390.0060.00615.16
5.6.380.0070.00715.10
5.6.370.0060.00814.94
5.6.360.0050.00914.86
5.6.350.0050.00614.97
5.6.340.0040.00814.87
5.6.330.0060.00814.98
5.6.320.0020.01115.09
5.6.310.0090.00614.67
5.6.300.0040.00914.90
5.6.290.0060.01014.92
5.6.280.0040.03017.07
5.6.270.0050.00614.94
5.6.260.0020.01214.98
5.6.250.0040.00914.79
5.6.240.0070.00714.93
5.6.230.0030.00814.94
5.6.220.0050.01014.92
5.6.210.0060.02016.74
5.6.200.0040.02016.03
5.6.190.0030.02616.81
5.6.180.1390.02316.89
5.6.170.0150.03116.67
5.6.160.0060.02416.83
5.6.150.0090.02316.03
5.6.140.0080.03116.03
5.6.130.0030.02416.01
5.6.120.0090.02716.99
5.6.110.0090.03116.91
5.6.100.0040.03416.89
5.6.90.0080.02917.01
5.6.80.0040.02616.68
5.6.70.1580.02016.57
5.6.60.0020.01214.88
5.6.50.0050.00614.86
5.6.40.0050.00814.84
5.6.30.0100.00314.58
5.6.20.0070.00414.69
5.6.10.0060.00515.02
5.6.00.0120.00314.84
5.5.380.0100.00414.77
5.5.370.0050.00814.97
5.5.360.0110.00514.99
5.5.350.0060.03116.80
5.5.340.0070.01516.06
5.5.330.0060.01716.85
5.5.320.0120.02016.61
5.5.310.0130.02216.58
5.5.300.0050.03015.89
5.5.290.0080.03115.87
5.5.280.0070.02316.86
5.5.270.0080.02816.73
5.5.260.0070.03116.77
5.5.250.0100.02216.79
5.5.240.0030.03016.71
5.5.230.0070.00314.67
5.5.220.0070.00514.64
5.5.210.0020.01014.83
5.5.200.0050.01014.71
5.5.190.0080.00614.50
5.5.180.0050.01014.81
5.5.170.0050.00814.85
5.5.160.0080.00314.73
5.5.150.0050.00514.56
5.5.140.0040.01014.79
5.5.130.0050.01014.71
5.5.120.0030.00814.72
5.5.110.0020.01014.71
5.5.100.0090.00614.65
5.5.90.0080.00314.88
5.5.80.0020.01214.79
5.5.70.0070.00714.71
5.5.60.0050.00914.54
5.5.50.0030.01214.58
5.5.40.0090.00714.88
5.5.30.0050.00714.93
5.5.20.0030.01214.76
5.5.10.0070.00714.89
5.5.00.0040.01114.82
5.4.450.0210.02614.27
5.4.440.0240.02814.35
5.4.430.0330.02014.22
5.4.420.0330.02314.40
5.4.410.0400.02114.34
5.4.400.0160.02514.00
5.4.390.0120.02013.93
5.4.380.0100.03313.88
5.4.370.0160.02413.91
5.4.360.0140.02613.99
5.4.350.0130.01913.89
5.4.340.0100.02014.11
5.4.330.0060.00511.71
5.4.320.0090.02313.77
5.4.310.0090.02413.99
5.4.300.0140.02013.98
5.4.290.0130.02213.83
5.4.280.0120.02513.94
5.4.270.0110.02213.94
5.4.260.0130.02013.77
5.4.250.0160.02113.99
5.4.240.0140.02113.91
5.4.230.0090.02313.93
5.4.220.0110.02513.94
5.4.210.0110.02413.85
5.4.200.0110.02813.24
5.4.190.0110.02813.78
5.4.180.0180.02413.83
5.4.170.0110.02613.96
5.4.160.0120.02913.85
5.4.150.0140.02013.88
5.4.140.0100.02013.22
5.4.130.0070.02313.09
5.4.120.0150.01913.02
5.4.110.0160.01912.95
5.4.100.0130.01913.15
5.4.90.0100.02313.03
5.4.80.0100.02013.07
5.4.70.0080.02513.06
5.4.60.0120.01913.14
5.4.50.0120.02013.16
5.4.40.0100.02313.08
5.4.30.0080.02313.03
5.4.20.0100.03013.06
5.4.10.0160.02313.13
5.4.00.0130.02412.86
5.3.290.0470.04314.58
5.3.280.0270.05314.57
5.3.270.0230.06314.54
5.3.260.0230.05314.54
5.3.250.0300.05014.53
5.3.240.0230.05314.61
5.3.230.0430.04314.60
5.3.220.0430.05014.52
5.3.210.0270.05714.53
5.3.200.0370.04314.56
5.3.190.0300.04714.60
5.3.180.0330.06714.52
5.3.170.0230.07714.54
5.3.160.0270.04714.56
5.3.150.0170.07014.53
5.3.140.0170.06014.64
5.3.130.0330.05714.55
5.3.120.0170.06714.46
5.3.110.0200.06314.64
5.3.100.0270.06014.09
5.3.90.0300.06714.00
5.3.80.0300.07014.00
5.3.70.0230.07713.93
5.3.60.0330.04013.99
5.3.50.0270.06714.03
5.3.40.0330.06313.88
5.3.30.0200.06014.02
5.3.20.0130.05713.67
5.3.10.0230.07013.62
5.3.00.0370.05713.61
5.2.170.0230.05311.18
5.2.160.0230.05311.11
5.2.150.0330.04011.18
5.2.140.0270.04011.19
5.2.130.0230.04011.06
5.2.120.0070.05011.16
5.2.110.0130.04311.07
5.2.100.0200.03711.24
5.2.90.0170.04011.16
5.2.80.0130.04711.05
5.2.70.0300.06011.23
5.2.60.0170.05011.05
5.2.50.0230.04010.97
5.2.40.0230.03710.96
5.2.30.0100.05011.03
5.2.20.0170.04311.01
5.2.10.0170.03710.90
5.2.00.0200.03710.76
5.1.60.0100.03710.06
5.1.50.0230.05010.14
5.1.40.0170.03710.02
5.1.30.0230.04710.33
5.1.20.0170.03710.39
5.1.10.0100.04010.19
5.1.00.0170.03710.09
5.0.50.0070.0378.57
5.0.40.0170.0238.43
5.0.30.0100.0438.34
5.0.20.0200.0178.28
5.0.10.0070.0338.31
5.0.00.0100.0408.24
4.4.90.0100.0275.94
4.4.80.0100.0205.89
4.4.70.0070.0235.87
4.4.60.0030.0275.82
4.4.50.0030.0275.92
4.4.40.0030.0405.85
4.4.30.0030.0275.87
4.4.20.0100.0205.97
4.4.10.0030.0275.97
4.4.00.0030.0405.94
4.3.110.0130.0175.83
4.3.100.0030.0235.81
4.3.90.0070.0205.77
4.3.80.0100.0335.81
4.3.70.0070.0205.82
4.3.60.0070.0235.86
4.3.50.0070.0275.80
4.3.40.0100.0375.75
4.3.30.0100.0204.63
4.3.20.0070.0204.52
4.3.10.0030.0234.50
4.3.00.0130.0206.90

preferences:
43.39 ms | 400 KiB | 5 Q