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($private)); print_r($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)
5.6.80.0070.07320.35
5.5.240.0030.06320.16
5.4.400.0330.06018.78
5.4.390.0270.06018.61
5.4.380.0270.07018.80
5.4.370.0330.06718.68
5.4.360.0530.07718.66
5.4.350.0400.05018.73
5.4.340.0170.06318.57
5.4.320.0470.05018.50
5.4.310.0330.05318.50
5.4.300.0230.06318.57
5.4.290.0230.05718.57
5.4.280.0270.08318.50
5.4.270.0330.07318.73
5.4.260.0300.07318.50
5.4.250.0370.07318.72
5.4.240.0300.06018.68
5.4.230.0370.04718.65
5.4.220.0330.05718.60
5.4.210.0230.06318.66
5.4.200.0200.06016.63
5.4.190.0230.07018.52
5.4.180.0370.06318.73
5.4.170.0330.06318.57
5.4.160.0270.07718.51
5.4.150.0530.07018.64
5.4.140.0300.06716.23
5.4.130.0270.06016.23
5.4.120.0270.05716.17
5.4.110.0430.04316.22
5.4.100.0370.05716.35
5.4.90.0230.06016.26
5.4.80.3530.06716.34
5.4.70.0400.06316.27
5.4.60.0370.06316.14
5.4.50.0270.06316.17
5.4.40.0400.07016.27
5.4.30.0500.06016.27
5.4.20.0500.05716.22
5.4.10.0470.04316.26
5.4.00.0230.05015.60
5.3.290.0270.06014.67
5.3.280.0300.05014.52
5.3.270.0170.07014.70
5.3.260.0370.05314.59
5.3.250.0330.06014.60
5.3.240.0370.05714.70
5.3.230.0270.06314.51
5.3.220.0300.06314.49
5.3.210.0300.06714.66
5.3.200.0430.06014.67
5.3.190.0230.06314.56
5.3.180.0330.06714.56
5.3.170.0470.05714.52
5.3.160.0370.06714.53
5.3.150.0470.05314.55
5.3.140.0400.08014.63
5.3.130.0370.07014.52
5.3.120.0100.08714.53
5.3.110.0470.08014.54
5.3.100.0270.07714.03
5.3.90.0470.07013.92
5.3.80.0430.05014.11
5.3.70.0330.06713.98
5.3.60.0300.05714.09
5.3.50.0370.05313.94
5.3.40.0430.05713.86
5.3.30.0500.06013.98
5.3.20.0430.05713.62
5.3.10.0300.06013.58
5.3.00.0600.05313.63
5.2.170.0330.04011.11
5.2.160.0200.05311.14
5.2.150.0230.04011.10
5.2.140.0470.04711.14
5.2.130.0270.04311.14
5.2.120.0230.04311.16
5.2.110.0170.04711.14
5.2.100.0230.05311.25
5.2.90.0170.05311.08
5.2.80.0330.05311.05
5.2.70.0300.05711.07
5.2.60.0330.05711.04
5.2.50.0400.04711.05
5.2.40.0200.05011.02
5.2.30.0200.05011.00
5.2.20.0330.04710.90
5.2.10.0270.05010.89
5.2.00.0270.04310.67
5.1.60.0130.04710.01
5.1.50.0270.03310.09
5.1.40.0130.0479.93
5.1.30.0270.04710.30
5.1.20.0230.03710.41
5.1.10.0200.05010.13
5.1.00.0370.05010.18
5.0.50.0200.0438.61
5.0.40.0100.0538.44
5.0.30.0170.0538.33
5.0.20.0200.0378.23
5.0.10.0100.0338.35
5.0.00.0100.0508.33
4.4.90.0200.0205.91
4.4.80.0130.0235.89
4.4.70.0070.0275.86
4.4.60.0170.0275.94
4.4.50.0030.0375.89
4.4.40.0100.0375.87
4.4.30.0170.0235.92
4.4.20.0170.0205.96
4.4.10.0100.0235.97
4.4.00.0100.0405.89
4.3.110.0200.0235.88
4.3.100.0070.0235.87
4.3.90.0070.0335.77
4.3.80.0200.0305.79
4.3.70.0030.0275.82
4.3.60.0130.0175.89
4.3.50.0200.0205.77
4.3.40.0130.0335.75
4.3.30.0030.0234.64
4.3.20.0100.0304.61
4.3.10.0070.0274.56
4.3.00.0030.0206.77

preferences:
142.48 ms | 1394 KiB | 7 Q