3v4l.org

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

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)
8.3.60.0120.00316.38
8.3.50.0070.01321.94
8.3.40.0150.00018.45
8.3.30.0070.00718.78
8.3.20.0080.00020.34
8.3.10.0000.00721.65
8.3.00.0060.00319.00
8.2.180.0110.00418.06
8.2.170.0000.01522.96
8.2.160.0100.00320.39
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0050.00319.23
8.2.110.0060.00319.21
8.2.100.0040.00717.50
8.2.90.0000.00819.23
8.2.80.0030.00517.97
8.2.70.0080.00017.50
8.2.60.0000.00817.80
8.2.50.0030.00618.07
8.2.40.0080.00019.88
8.2.30.0000.00817.95
8.2.20.0050.00317.62
8.2.10.0040.00417.96
8.2.00.0040.00417.68
8.1.280.0100.01325.92
8.1.270.0040.00418.74
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00322.23
8.1.230.0110.00017.54
8.1.220.0000.00817.79
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0040.00417.10
8.1.180.0000.00818.10
8.1.170.0050.00318.88
8.1.160.0000.00821.94
8.1.150.0000.00718.89
8.1.140.0040.00417.36
8.1.130.0050.00317.86
8.1.120.0000.00717.44
8.1.110.0000.00917.41
8.1.100.0040.00417.30
8.1.90.0030.00317.44
8.1.80.0080.00017.39
8.1.70.0030.00317.41
8.1.60.0090.00017.57
8.1.50.0000.00717.32
8.1.40.0000.00717.45
8.1.30.0000.00817.56
8.1.20.0040.00417.49
8.1.10.0050.00317.32
8.1.00.0080.00017.29
8.0.300.0080.00018.77
8.0.290.0040.00416.63
8.0.280.0050.00218.28
8.0.270.0040.00417.25
8.0.260.0000.00617.09
8.0.250.0000.00716.87
8.0.240.0040.00416.96
8.0.230.0000.00716.90
8.0.220.0030.00316.75
8.0.210.0000.00716.77
8.0.200.0000.00716.84
8.0.190.0000.00716.75
8.0.180.0050.00316.86
8.0.170.0060.00316.83
8.0.160.0000.00716.80
8.0.150.0030.00316.79
8.0.140.0070.00016.82
8.0.130.0000.00513.29
8.0.120.0050.00216.74
8.0.110.0000.00716.76
8.0.100.0070.00016.69
8.0.90.0070.00016.70
8.0.80.0080.01516.86
8.0.70.0000.00716.71
8.0.60.0040.00416.78
8.0.50.0000.00716.79
8.0.30.0130.01016.99
8.0.20.0110.00817.40
8.0.10.0030.00316.82
8.0.00.0060.01316.65
7.4.330.0030.00315.13
7.4.320.0000.00616.36
7.4.300.0000.00616.36
7.4.290.0040.00416.44
7.4.280.0080.00016.54
7.4.270.0080.00016.45
7.4.260.0000.00716.40
7.4.250.0000.00716.50
7.4.240.0040.00416.45
7.4.230.0040.00416.46
7.4.220.0060.01616.53
7.4.210.0100.00716.37
7.4.200.0030.00316.61
7.4.160.0040.01216.57
7.4.150.0090.00817.40
7.4.140.0110.00917.86
7.4.130.0120.00516.51
7.4.120.0090.00916.26
7.4.110.0090.00916.57
7.4.100.0150.00716.29
7.4.90.0100.00716.18
7.4.80.0070.01019.39
7.4.70.0120.00416.29
7.4.60.0040.01116.31
7.4.50.0000.00716.58
7.4.40.0060.01216.36
7.4.30.0120.00716.45
7.4.00.0100.00414.97
7.3.330.0030.00313.04
7.3.320.0050.00913.02
7.3.310.0040.00416.06
7.3.300.0000.00716.12
7.3.290.0080.00616.13
7.3.280.0100.00516.13
7.3.270.0130.01017.40
7.3.260.0080.01116.35
7.3.250.0110.00616.32
7.3.240.0100.00716.36
7.3.230.0150.00916.39
7.3.210.0130.01016.35
7.3.200.0100.01019.39
7.3.190.0110.01416.49
7.3.180.0040.01116.11
7.3.170.0070.01016.27
7.3.160.0150.00616.36
7.3.120.0100.01014.89
7.3.110.0030.01314.69
7.3.100.0060.00914.88
7.3.90.0090.00314.67
7.3.80.0030.01014.54
7.3.70.0080.00414.67
7.3.60.0060.00614.78
7.3.50.0080.00814.64
7.3.40.0100.00614.55
7.3.30.0070.00714.44
7.3.20.0110.00416.29
7.3.10.0080.00416.50
7.3.00.0070.00716.48
7.2.330.0040.01416.64
7.2.320.0000.01516.51
7.2.310.0060.01616.41
7.2.300.0120.00916.26
7.2.290.0120.00416.55
7.2.250.0130.00314.53
7.2.240.0130.00714.90
7.2.230.0030.01614.63
7.2.220.0100.00315.00
7.2.210.0060.00614.82
7.2.200.0030.01014.96
7.2.190.0040.00814.98
7.2.180.0060.00915.02
7.2.170.0040.01114.95
7.2.60.0070.00716.85
7.2.00.0060.00619.26
7.1.330.0000.01415.75
7.1.320.0040.01115.51
7.1.310.0070.00315.77
7.1.300.0090.00615.62
7.1.290.0030.01015.62
7.1.280.0000.01515.52
7.1.270.0040.00415.45
7.1.260.0070.01015.56
7.1.200.0000.01315.62
7.1.100.0030.00918.23
7.1.70.0070.00716.77
7.1.60.0060.01919.50
7.1.50.0000.02016.82
7.1.00.0000.08022.48
7.0.200.0200.00316.24
7.0.140.0000.06722.04
7.0.60.0200.07719.90
7.0.50.0070.03717.96
7.0.40.0100.09020.13
7.0.30.0270.03320.21
7.0.20.0170.07020.13
7.0.10.0230.06020.23
7.0.00.0030.04320.13
5.6.280.0070.07021.11
5.6.210.0030.04720.75
5.6.200.0170.07318.18
5.6.190.0100.07720.76
5.6.180.0100.04720.53
5.6.170.0330.06020.43
5.6.160.0030.08720.57
5.6.150.0070.08018.21
5.6.140.0070.08018.16
5.6.130.0070.08018.17
5.6.120.0100.06020.98
5.6.110.0130.08020.95
5.6.100.0100.05320.97
5.6.90.0100.08020.99
5.6.80.0170.07020.41
5.6.70.0230.06320.55
5.5.350.0270.04320.33
5.5.340.0030.03717.99
5.5.330.0130.07720.27
5.5.320.0070.03720.13
5.5.310.0230.08020.24
5.5.300.0070.07717.97
5.5.290.0030.06317.95
5.5.280.0130.07320.80
5.5.270.0000.05320.76
5.5.260.0030.08720.96
5.5.250.0100.07720.68
5.5.240.0030.05720.23
5.4.450.0870.05019.48
5.4.440.0870.06019.46
5.4.430.0630.06319.44
5.4.420.0970.05719.38
5.4.410.1230.06719.43
5.4.400.0200.06018.53
5.4.390.0230.05718.81
5.4.380.0170.06018.84
5.4.370.0300.06718.78
5.4.360.0230.05718.63
5.4.350.0300.05718.61
5.4.340.0330.04718.74
5.4.320.0170.06718.68
5.4.310.0270.05718.78
5.4.300.0330.07718.72
5.4.290.0330.07718.56
5.4.280.0370.05318.45
5.4.270.0400.05318.69
5.4.260.0270.06318.73
5.4.250.0270.06718.71
5.4.240.0370.06318.46
5.4.230.0270.06718.84
5.4.220.0330.05018.59
5.4.210.0330.05318.78
5.4.200.0300.05016.58
5.4.190.0300.08018.51
5.4.180.0300.05018.68
5.4.170.0270.05718.69
5.4.160.0300.05718.72
5.4.150.0270.06018.57
5.4.140.0430.04016.20
5.4.130.0370.04316.28
5.4.120.0300.04716.29
5.4.110.0270.05016.23
5.4.100.0230.05316.29
5.4.90.0300.04716.43
5.4.80.0330.04716.21
5.4.70.0330.05016.27
5.4.60.0300.05016.27
5.4.50.0230.06016.20
5.4.40.0330.07016.26
5.4.30.0370.06316.38
5.4.20.0270.05716.19
5.4.10.0330.05316.20
5.4.00.0300.06315.65
5.3.290.0330.08014.77
5.3.280.0370.07014.69
5.3.270.0370.07014.57
5.3.260.0330.06014.61
5.3.250.0330.05714.66
5.3.240.0330.05014.57
5.3.230.0170.06714.56
5.3.220.0330.05714.48
5.3.210.0200.06014.48
5.3.200.0400.04714.54
5.3.190.0330.05014.56
5.3.180.0370.05714.55
5.3.170.0270.07014.49
5.3.160.0370.06314.66
5.3.150.0300.07314.53
5.3.140.0330.07714.54
5.3.130.0300.05314.46
5.3.120.0230.06314.46
5.3.110.0300.05314.64
5.3.100.0300.07013.99
5.3.90.0500.06013.94
5.3.80.0230.05713.96
5.3.70.0330.04713.93
5.3.60.0230.05313.99
5.3.50.0330.04714.04
5.3.40.0200.06013.94
5.3.30.0370.06313.82
5.3.20.0270.05313.64
5.3.10.0370.04013.66
5.3.00.0200.06313.73
5.2.170.0300.04011.17
5.2.160.0270.03711.29
5.2.150.0230.04011.28
5.2.140.0200.04011.12
5.2.130.0170.04311.05
5.2.120.0200.03711.06
5.2.110.0270.03711.05
5.2.100.0300.04311.08
5.2.90.0170.04711.04
5.2.80.0100.06011.06
5.2.70.0200.04311.04
5.2.60.0170.04710.96
5.2.50.0200.04011.05
5.2.40.0200.04711.14
5.2.30.0130.04710.90
5.2.20.0230.04011.00
5.2.10.0170.06010.95
5.2.00.0170.04310.83
5.1.60.0300.05010.04
5.1.50.0170.03310.07
5.1.40.0130.03710.05
5.1.30.0130.04310.45
5.1.20.0230.05010.44
5.1.10.0270.04010.09
5.1.00.0200.03710.12
5.0.50.0100.0338.62
5.0.40.0130.0238.52
5.0.30.0100.0538.24
5.0.20.0130.0378.40
5.0.10.0100.0378.34
5.0.00.0100.0438.28
4.4.90.0070.0235.91
4.4.80.0070.0235.88
4.4.70.0070.0235.89
4.4.60.0130.0275.90
4.4.50.0130.0175.93
4.4.40.0100.0435.89
4.4.30.0100.0235.90
4.4.20.0000.0335.91
4.4.10.0130.0175.95
4.4.00.0070.0375.93
4.3.110.0070.0305.83
4.3.100.0100.0205.80
4.3.90.0100.0205.88
4.3.80.0070.0375.82
4.3.70.0070.0205.89
4.3.60.0170.0205.77
4.3.50.0070.0235.77
4.3.40.0100.0305.80
4.3.30.0070.0204.55
4.3.20.0030.0234.54
4.3.10.0100.0234.54
4.3.00.0200.0176.77

preferences:
42.95 ms | 401 KiB | 5 Q