3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('a' => 2, 'b' => 1, 'c' => 4); $first = array(key($array) => current($array)); end($array); $array = array_merge(array(key($array) => current($array)), array_pop(array_shift($array)), $first); print_r($array);

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)
8.3.40.0090.00618.67
8.3.30.0070.01118.55
8.3.20.0030.00718.76
8.3.10.0060.00318.69
8.3.00.0040.00419.38
8.2.170.0170.00322.96
8.2.160.0090.00621.11
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0060.00319.18
8.2.110.0070.00322.06
8.2.100.0000.01117.91
8.2.90.0040.00419.22
8.2.80.0080.00017.97
8.2.70.0000.00917.50
8.2.60.0040.00418.04
8.2.50.0030.00618.07
8.2.40.0030.00517.95
8.2.30.0030.00618.04
8.2.20.0030.00617.77
8.2.10.0040.00417.76
8.2.00.0050.00317.62
8.1.270.0050.00324.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.85
8.1.230.0110.00017.52
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0040.00417.13
8.1.190.0070.00017.39
8.1.180.0030.00718.10
8.1.170.0020.00518.76
8.1.160.0000.00718.83
8.1.150.0040.00418.49
8.1.140.0050.00317.48
8.1.130.0050.00217.83
8.1.120.0040.00417.42
8.1.110.0040.00417.38
8.1.100.0030.00517.41
8.1.90.0070.00017.30
8.1.80.0070.00017.34
8.1.70.0000.00717.39
8.1.60.0060.00317.46
8.1.50.0030.00617.50
8.1.40.0030.00617.59
8.1.30.0080.00017.64
8.1.20.0040.00417.69
8.1.10.0040.00417.47
8.1.00.0040.00417.44
8.0.300.0070.00018.77
8.0.290.0070.00016.75
8.0.280.0070.00018.29
8.0.270.0000.00717.11
8.0.260.0000.00716.82
8.0.250.0000.00816.96
8.0.240.0050.00316.85
8.0.230.0000.00716.96
8.0.220.0000.00716.93
8.0.210.0000.00716.96
8.0.200.0000.00716.91
8.0.190.0040.00416.86
8.0.180.0030.00716.90
8.0.170.0040.00416.82
8.0.160.0070.00016.92
8.0.150.0040.00416.76
8.0.140.0040.00416.77
8.0.130.0060.00013.25
8.0.120.0070.00016.84
8.0.110.0040.00416.77
8.0.100.0000.00716.76
8.0.90.0050.00316.95
8.0.80.0080.00716.85
8.0.70.0040.00416.96
8.0.60.0000.00816.71
8.0.50.0070.00016.95
8.0.30.0120.00616.96
8.0.20.0050.01416.87
8.0.10.0000.00717.06
8.0.00.0120.00516.66
7.4.330.0000.00513.02
7.4.320.0040.00416.45
7.4.300.0000.00616.54
7.4.290.0030.00316.41
7.4.280.0000.00816.43
7.4.270.0030.00316.50
7.4.260.0030.00313.24
7.4.250.0050.00316.35
7.4.240.0000.00816.48
7.4.230.0030.00316.32
7.4.220.0130.00716.48
7.4.210.0080.00716.52
7.4.200.0000.00716.56
7.4.190.0000.00716.43
7.4.160.0090.00616.44
7.4.150.0150.00216.41
7.4.140.0080.01216.38
7.4.130.0080.01116.41
7.4.120.0030.01416.23
7.4.110.0070.01016.37
7.4.100.0110.00616.52
7.4.90.0030.01316.43
7.4.80.0030.01419.39
7.4.70.0070.01416.67
7.4.60.0070.01016.31
7.4.50.0050.00516.40
7.4.40.0120.00416.31
7.4.30.0100.00716.16
7.4.00.0060.00914.78
7.3.330.0030.00313.31
7.3.320.0000.00513.06
7.3.310.0040.00416.32
7.3.300.0000.00716.23
7.3.290.0120.00316.38
7.3.280.0120.00516.33
7.3.270.0000.01616.34
7.3.260.0170.00016.25
7.3.250.0080.01016.27
7.3.240.0030.01516.32
7.3.230.0160.00016.32
7.3.210.0090.00916.37
7.3.200.0060.01016.58
7.3.190.0120.00616.54
7.3.180.0040.01416.31
7.3.170.0060.01116.17
7.3.160.0040.01216.48
7.3.120.0070.01014.77
7.2.330.0130.00316.64
7.2.320.0100.00716.54
7.2.310.0130.01016.50
7.2.300.0080.01116.62
7.2.290.0110.00716.80
7.2.60.0080.00316.80
7.1.200.0060.00615.65
7.1.70.0000.00717.03
7.1.60.0140.01019.40
7.1.50.0070.01416.84
7.1.00.0000.07722.46
7.0.200.0080.00414.86
7.0.140.0030.07322.00
7.0.120.0000.07322.00
7.0.60.0130.07020.00
7.0.50.0030.05017.79
7.0.40.0070.04320.04
7.0.30.0570.07020.35
7.0.20.0370.05020.33
7.0.10.0430.07320.30
7.0.00.0030.06320.08
5.6.280.0030.07321.12
5.6.210.0030.04020.54
5.6.200.0070.03718.07
5.6.190.0000.09720.77
5.6.180.0230.04320.77
5.6.170.0200.04320.45
5.6.160.0070.07720.52
5.6.150.0100.08018.18
5.6.140.0000.04318.16
5.6.130.0100.08018.20
5.6.120.0030.04020.97
5.6.110.0070.07021.11
5.6.100.0100.05021.00
5.6.90.0030.07020.96
5.6.80.0030.04020.37
5.6.70.0270.03720.36
5.5.350.0470.05320.29
5.5.340.0070.04317.96
5.5.330.0170.06720.21
5.5.320.0130.05720.37
5.5.310.0070.05020.21
5.5.300.0070.04717.91
5.5.290.0030.04017.92
5.5.280.0100.08020.81
5.5.270.0030.04720.83
5.5.260.0030.06720.86
5.5.250.0070.04720.68
5.5.240.0030.03720.15
5.4.450.1900.04719.54
5.4.440.2100.04019.21
5.4.430.2000.03319.54
5.4.420.0030.08019.41
5.4.410.0030.04019.33
5.4.400.0070.05319.10
5.4.390.1430.03719.14
5.4.380.1970.03319.09
5.4.370.0000.04019.25
5.4.360.0100.04318.93
5.4.350.0000.04019.24
5.4.340.1570.03719.25
5.4.320.1730.05018.88
5.4.310.2170.02719.14
5.4.300.2030.02019.08
5.4.290.2000.03318.91
5.4.280.2170.03718.77
5.4.270.1600.04019.06
5.4.260.0070.03319.25
5.4.250.0070.04719.13
5.4.240.0270.04019.08
5.4.230.1930.03318.88
5.4.220.2100.04319.07
5.4.210.0030.04019.08
5.4.200.0000.04319.09
5.4.190.0030.03719.23
5.4.180.0370.03718.92
5.4.170.0030.03718.77
5.4.160.0100.03018.91
5.4.150.0070.03719.13
5.4.140.1670.03316.53
5.4.130.0900.03316.52
5.4.120.0070.03316.32
5.4.110.0030.03716.41
5.4.100.0000.04316.20
5.4.90.1770.03016.26
5.4.80.0100.03716.50
5.4.70.0000.03716.38
5.4.60.0030.04016.40
5.4.50.0100.04316.27
5.4.40.0400.02716.12
5.4.30.0300.03016.36
5.4.20.0130.04716.35
5.4.10.0100.04016.20
5.4.00.0270.06315.73
5.3.290.0200.04714.52
5.3.280.0230.03714.45
5.3.270.0130.04714.44
5.3.260.0100.03714.59
5.3.250.0030.03714.59
5.3.240.0170.03314.59
5.3.230.0170.04714.50
5.3.220.0200.04314.47
5.3.210.0030.03714.42
5.3.200.0170.05714.51
5.3.190.1970.03714.44
5.3.180.1030.04314.63
5.3.170.0000.04014.41
5.3.160.0100.03014.40
5.3.150.0200.03714.50
5.3.140.1570.03314.56
5.3.130.1570.04714.64
5.3.120.0070.05014.48
5.3.110.0030.03714.59
5.3.100.0170.02314.02
5.3.90.0830.02713.86
5.3.80.0070.03313.84
5.3.70.0070.04013.86
5.3.60.0400.05314.05
5.3.50.2000.04013.78
5.3.40.0170.03313.89
5.3.30.0230.02713.74
5.3.20.0270.03313.55
5.3.10.0200.03313.42
5.3.00.0130.03713.56
5.2.170.0030.03310.98
5.2.160.0130.03710.99
5.2.150.0170.02711.09
5.2.140.0100.03311.19
5.2.130.0130.03710.95
5.2.120.0170.03311.03
5.2.110.0200.03311.01
5.2.100.0170.02711.15
5.2.90.0070.03011.01
5.2.80.0100.03310.93
5.2.70.0130.03011.11
5.2.60.0130.03011.00
5.2.50.0170.02710.87
5.2.40.0170.02310.89
5.2.30.0130.03711.04
5.2.20.0130.03310.86
5.2.10.0170.05310.75
5.2.00.0200.02710.61
5.1.60.0170.0209.85
5.1.50.0130.0279.88
5.1.40.0100.0439.95
5.1.30.0100.03010.27
5.1.20.0070.03310.31
5.1.10.0100.0279.96
5.1.00.0270.04010.04
5.0.50.0130.0338.56
5.0.40.0070.0208.49
5.0.30.0100.0578.11
5.0.20.0070.0178.28
5.0.10.0070.0438.11
5.0.00.0070.0408.28
4.4.90.0100.0138.11
4.4.80.0000.0238.11
4.4.70.0070.0178.11
4.4.60.0000.0208.11
4.4.50.0030.0308.11
4.4.40.0070.0478.11
4.4.30.0070.0238.11
4.4.20.0130.0138.11
4.4.10.0070.0208.11
4.4.00.0100.0208.11
4.3.110.0070.0138.11
4.3.100.0070.0238.11
4.3.90.0070.0278.11
4.3.80.0070.0278.11
4.3.70.0030.0178.11
4.3.60.0030.0238.11
4.3.50.0070.0138.11
4.3.40.0070.0238.11
4.3.30.0070.0208.11
4.3.20.0000.0178.11
4.3.10.0000.0308.11
4.3.00.0000.0178.11

preferences:
41.48 ms | 400 KiB | 5 Q