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' ]; $aliases = array_flip($aliases); print_r(array_intersect_key($aliases, array_flip($private)));

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)
8.3.110.0080.00020.94
8.3.100.0090.00024.06
8.3.90.0080.00026.77
8.3.80.0050.00517.97
8.3.70.0120.00918.18
8.3.60.0100.00316.50
8.3.50.0100.00821.98
8.3.40.0070.00718.54
8.3.30.0080.00819.06
8.3.20.0000.00920.33
8.3.10.0050.00221.73
8.3.00.0040.00419.25
8.2.230.0050.00322.58
8.2.220.0090.00037.54
8.2.210.0190.00026.77
8.2.200.0030.00716.50
8.2.190.0100.00316.58
8.2.180.0060.00918.31
8.2.170.0130.00722.96
8.2.160.0100.00320.16
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0030.00626.16
8.2.120.0000.00819.23
8.2.110.0030.00719.19
8.2.100.0070.00417.63
8.2.90.0080.00019.08
8.2.80.0080.00017.97
8.2.70.0000.00817.46
8.2.60.0000.00917.91
8.2.50.0030.00518.07
8.2.40.0080.00019.95
8.2.30.0040.00417.87
8.2.20.0040.00417.46
8.2.10.0000.00818.00
8.2.00.0080.00017.52
8.1.290.0040.00430.84
8.1.280.0140.00725.92
8.1.270.0080.00018.67
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.06
8.1.230.0070.00417.66
8.1.220.0000.00717.74
8.1.210.0050.00418.77
8.1.200.0060.00317.10
8.1.190.0060.00316.97
8.1.180.0040.00418.10
8.1.170.0040.00418.96
8.1.160.0050.00221.93
8.1.150.0000.00818.75
8.1.140.0030.00517.29
8.1.130.0000.00717.82
8.1.120.0050.00317.44
8.1.110.0040.00417.26
8.1.100.0050.00317.23
8.1.90.0000.00717.40
8.1.80.0030.00517.38
8.1.70.0000.00717.44
8.1.60.0030.00617.53
8.1.50.0000.00817.37
8.1.40.0000.00817.35
8.1.30.0000.00817.63
8.1.20.0000.00717.64
8.1.10.0050.00217.45
8.1.00.0000.00817.39
8.0.300.0070.00018.77
8.0.290.0040.00416.63
8.0.280.0030.00318.31
8.0.270.0070.00017.10
8.0.260.0000.00817.10
8.0.250.0070.00016.91
8.0.240.0030.00316.75
8.0.230.0030.00316.73
8.0.220.0030.00316.71
8.0.210.0050.00316.72
8.0.200.0030.00316.77
8.0.190.0070.00016.89
8.0.180.0000.00716.80
8.0.170.0040.00416.82
8.0.160.0000.00716.85
8.0.150.0000.00716.86
8.0.140.0030.00516.84
8.0.130.0050.00013.29
8.0.120.0070.00016.69
8.0.110.0000.00716.85
8.0.100.0000.00716.81
8.0.90.0070.00016.70
8.0.80.0120.00916.85
8.0.70.0040.00416.73
8.0.60.0070.00016.70
8.0.50.0000.00716.71
8.0.30.0110.01217.07
8.0.20.0160.00517.40
8.0.10.0000.00716.98
8.0.00.0060.01016.76
7.4.330.0030.00315.03
7.4.320.0030.00316.35
7.4.300.0060.00016.55
7.4.290.0040.00416.44
7.4.280.0000.00716.54
7.4.270.0000.00716.52
7.4.260.0030.00316.41
7.4.250.0040.00416.31
7.4.240.0020.00516.46
7.4.230.0000.00716.34
7.4.220.0090.00916.50
7.4.210.0060.00916.55
7.4.200.0030.00316.53
7.4.160.0030.01316.44
7.4.150.0120.00617.40
7.4.140.0150.00817.86
7.4.130.0090.00816.59
7.4.120.0080.00916.53
7.4.110.0100.01016.17
7.4.100.0170.00016.38
7.4.90.0070.01016.44
7.4.80.0080.01219.39
7.4.70.0040.01216.42
7.4.60.0110.00516.47
7.4.50.0000.00616.43
7.4.40.0080.00816.44
7.4.30.0090.01216.59
7.4.00.0070.00614.70
7.3.330.0000.00613.01
7.3.320.0140.00012.93
7.3.310.0000.00716.02
7.3.300.0000.00616.13
7.3.290.0100.00416.11
7.3.280.0080.00716.19
7.3.270.0030.01617.40
7.3.260.0120.00616.09
7.3.250.0070.00916.21
7.3.240.0100.00616.08
7.3.230.0150.00616.46
7.3.210.0090.01316.19
7.3.200.0030.01519.39
7.3.190.0130.01016.04
7.3.180.0090.00616.04
7.3.170.0100.00716.33
7.3.160.0140.00416.23
7.2.330.0030.01416.68
7.2.320.0100.00616.51
7.2.310.0110.00616.66
7.2.300.0070.01016.56
7.2.290.0100.01316.65
7.1.100.0040.00718.22
7.1.70.0030.00317.09
7.1.60.0030.01719.50
7.1.50.0130.01016.86
7.1.00.0000.08022.45
7.0.200.0250.00616.16
7.0.140.0100.06722.06
7.0.60.0070.03719.89
7.0.50.0100.08017.86
7.0.40.0100.07720.12
7.0.30.0470.07020.02
7.0.20.0200.08320.14
7.0.10.0100.07320.09
7.0.00.0130.08020.13
5.6.280.0030.07320.82
5.6.210.0130.07320.56
5.6.200.0100.05018.11
5.6.190.0100.08020.35
5.6.180.2870.04020.45
5.6.170.0270.05320.48
5.6.160.0100.04020.40
5.6.150.0100.07318.13
5.6.140.0130.07018.09
5.6.130.0100.04318.08
5.6.120.0070.08320.94
5.6.110.0000.06021.13
5.6.100.0170.07320.98
5.6.90.0070.04721.00
5.6.80.0070.07720.38
5.6.70.3700.03720.27
5.5.350.0330.07020.38
5.5.340.0230.06317.89
5.5.330.0100.07720.25
5.5.320.0230.05020.28
5.5.310.0200.04320.29
5.5.300.0000.08717.91
5.5.290.0030.04017.92
5.5.280.0070.08320.84
5.5.270.0030.08020.79
5.5.260.0130.08320.79
5.5.250.0100.08720.79
5.5.240.0330.06720.26
5.4.450.0600.05719.47
5.4.440.1000.06019.32
5.4.430.0970.05319.31
5.4.420.1000.05719.46
5.4.410.0800.05719.34
5.4.400.0400.06318.75
5.4.390.0370.06018.68
5.4.380.0200.06018.59
5.4.370.0270.05718.71
5.4.360.0470.04318.50
5.4.350.0300.05318.70
5.4.340.0270.05018.50
5.4.320.0230.06318.78
5.4.310.0200.05318.68
5.4.300.0330.04318.77
5.4.290.0330.05018.72
5.4.280.0230.06018.50
5.4.270.0200.05718.52
5.4.260.0270.05018.80
5.4.250.0270.05718.66
5.4.240.0300.05018.77
5.4.230.0270.05018.48
5.4.220.0330.04318.72
5.4.210.0370.04318.46
5.4.200.0170.05716.64
5.4.190.0430.05718.69
5.4.180.0300.05018.66
5.4.170.0170.06318.48
5.4.160.0370.04718.66
5.4.150.0400.05018.66
5.4.140.0270.06016.31
5.4.130.0170.05016.15
5.4.120.0270.04316.29
5.4.110.0170.06016.31
5.4.100.0130.05716.12
5.4.90.0070.06316.26
5.4.80.0200.05316.23
5.4.70.0300.05316.14
5.4.60.0270.04316.22
5.4.50.0130.06316.27
5.4.40.0170.05716.07
5.4.30.0200.04716.03
5.4.20.0100.06716.09
5.4.10.0230.05716.07
5.4.00.0200.05715.82
5.3.290.0170.06014.73
5.3.280.0170.05314.62
5.3.270.0100.06014.61
5.3.260.0500.05714.60
5.3.250.1030.05314.70
5.3.240.1430.07314.70
5.3.230.1330.06314.54
5.3.220.1200.05714.57
5.3.210.1130.06714.57
5.3.200.0600.04714.60
5.3.190.0270.04714.66
5.3.180.0300.04714.55
5.3.170.0230.04714.66
5.3.160.0170.06314.49
5.3.150.0300.05014.46
5.3.140.0230.05014.56
5.3.130.0230.05014.53
5.3.120.0300.04314.58
5.3.110.0230.06314.55
5.3.100.0170.06713.97
5.3.90.0170.05713.97
5.3.80.0230.06014.05
5.3.70.0300.04714.03
5.3.60.0130.05313.95
5.3.50.0200.04714.04
5.3.40.0230.04714.02
5.3.30.0170.04713.98
5.3.20.0200.05313.64
5.3.10.0230.04313.73
5.3.00.0170.05013.62
5.2.170.0230.03011.07
5.2.160.0130.04711.17
5.2.150.0200.05011.30
5.2.140.0130.06011.18
5.2.130.0130.04011.10
5.2.120.0100.04311.25
5.2.110.0170.04011.16
5.2.100.0130.04011.05
5.2.90.0170.06311.01
5.2.80.0200.04711.07
5.2.70.0300.05311.03
5.2.60.0230.04711.09
5.2.50.0470.03711.03
5.2.40.0270.03310.96
5.2.30.0300.03311.03
5.2.20.0070.05010.91
5.2.10.0300.02710.84
5.2.00.0170.04710.68
5.1.60.0200.03010.11
5.1.50.0130.03710.01
5.1.40.0200.03710.02
5.1.30.0070.04710.31
5.1.20.0030.05010.45
5.1.10.0230.03010.11
5.1.00.0130.03710.09
5.0.50.0000.0408.57
5.0.40.0200.0238.40
5.0.30.0070.0508.28
5.0.20.0170.0308.20
5.0.10.0070.0508.34
5.0.00.0130.0578.18
4.4.90.0070.0305.92
4.4.80.0170.0135.89
4.4.70.0030.0275.80
4.4.60.0070.0275.92
4.4.50.0130.0205.90
4.4.40.0130.0375.95
4.4.30.0170.0175.90
4.4.20.0100.0205.88
4.4.10.0230.0275.97
4.4.00.0070.0435.96
4.3.110.0170.0305.84
4.3.100.0070.0305.83
4.3.90.0130.0275.79
4.3.80.0170.0405.91
4.3.70.0070.0305.80
4.3.60.0030.0275.87
4.3.50.0070.0235.78
4.3.40.0170.0305.79
4.3.30.0030.0274.57
4.3.20.0000.0274.56
4.3.10.0070.0204.52
4.3.00.0100.0237.41

preferences:
68.34 ms | 403 KiB | 5 Q