3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array('a' => 2, 'b' => 1, 'c' => 4); $first = array(key($array) => current($array)); // Get the first key/value pair array_shift($array); // Remove it from your array echo end($array); die(); $last = array(end($array) => key($array)); // Get the last key/value pair array_pop($array); // Remove it from the array $array = array_merge($last, $array, $first); // Put it back together print_r($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)
8.3.70.0070.01418.43
8.3.60.0110.00316.50
8.3.50.0110.00721.93
8.3.40.0180.00018.96
8.3.30.0120.00318.96
8.3.20.0050.00320.18
8.3.10.0040.00423.53
8.3.00.0000.00820.95
8.2.180.0130.01016.38
8.2.170.0140.00722.96
8.2.160.0100.00320.47
8.2.150.0070.00724.18
8.2.140.0000.00724.66
8.2.130.0070.00026.16
8.2.120.0050.00319.36
8.2.110.0030.00622.09
8.2.100.0060.00618.22
8.2.90.0080.00019.34
8.2.80.0040.00417.97
8.2.70.0050.00517.75
8.2.60.0000.00717.93
8.2.50.0030.00618.07
8.2.40.0030.00519.95
8.2.30.0060.00318.22
8.2.20.0040.00417.80
8.2.10.0040.00418.06
8.2.00.0050.00319.51
8.1.280.0120.00325.92
8.1.270.0050.00323.82
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00324.01
8.1.230.0080.00319.10
8.1.220.0050.00317.76
8.1.210.0040.00418.77
8.1.200.0060.00317.36
8.1.190.0050.00317.13
8.1.180.0000.00718.10
8.1.170.0050.00218.72
8.1.160.0070.00021.89
8.1.150.0040.00418.44
8.1.140.0040.00417.36
8.1.130.0000.00717.70
8.1.120.0060.00317.44
8.1.110.0080.00317.41
8.1.100.0050.00317.36
8.1.90.0040.00417.31
8.1.80.0040.00417.41
8.1.70.0030.00317.39
8.1.60.0110.00017.50
8.1.50.0000.00817.43
8.1.40.0050.00317.58
8.1.30.0040.00417.57
8.1.20.0040.00417.54
8.1.10.0040.00417.48
8.1.00.0040.00417.47
8.0.300.0070.00018.77
8.0.290.0040.00416.74
8.0.280.0030.00318.45
8.0.270.0030.00317.25
8.0.260.0070.00017.25
8.0.250.0030.00317.06
8.0.240.0050.00316.91
8.0.230.0070.00016.91
8.0.220.0030.00316.95
8.0.210.0040.00416.87
8.0.200.0080.00016.93
8.0.190.0050.00316.86
8.0.180.0070.00416.88
8.0.170.0050.00316.80
8.0.160.0000.00716.78
8.0.150.0040.00416.87
8.0.140.0000.00816.78
8.0.130.0070.00013.32
8.0.120.0040.00416.74
8.0.110.0000.00816.90
8.0.100.0000.00716.76
8.0.90.0000.00716.69
8.0.80.0070.01416.77
8.0.70.0080.00016.83
8.0.60.0030.00416.79
8.0.50.0030.00616.92
8.0.30.0110.01217.04
8.0.20.0140.00617.40
8.0.10.0040.00417.00
8.0.00.0130.00516.74
7.4.330.0030.00315.09
7.4.320.0050.00216.44
7.4.300.0030.00316.48
7.4.290.0070.00016.54
7.4.280.0040.00416.46
7.4.270.0030.00316.43
7.4.260.0060.00316.51
7.4.250.0040.00416.49
7.4.240.0010.00616.50
7.4.230.0070.00016.63
7.4.220.0100.01316.65
7.4.210.0090.00616.47
7.4.200.0050.00316.64
7.4.160.0130.00416.23
7.4.150.0060.01217.40
7.4.140.0090.00917.86
7.4.130.0090.00916.45
7.4.120.0060.01016.46
7.4.110.0130.01016.61
7.4.100.0120.00616.29
7.4.90.0070.01016.47
7.4.80.0060.01219.39
7.4.70.0060.01116.36
7.4.60.0070.01016.48
7.4.50.0040.00416.43
7.4.40.0060.01016.63
7.4.30.0060.00916.38
7.4.00.0100.00614.99
7.3.330.0050.00013.10
7.3.320.0000.00513.17
7.3.310.0000.00716.20
7.3.300.0000.00716.15
7.3.290.0160.00316.37
7.3.280.0090.01016.26
7.3.270.0080.01017.40
7.3.260.0000.02416.25
7.3.250.0130.00516.41
7.3.240.0100.00716.22
7.3.230.0080.01516.39
7.3.210.0060.01116.28
7.3.200.0090.00619.39
7.3.190.0170.00516.24
7.3.180.0100.01016.29
7.3.170.0080.00816.29
7.3.160.0130.00616.31
7.3.120.0040.01114.90
7.2.330.0140.00416.59
7.2.320.0120.00616.33
7.2.310.0080.00916.38
7.2.300.0120.00916.59
7.2.290.0080.00816.69
7.2.00.0060.00919.29
7.1.100.0030.00917.90
7.1.70.0000.00817.11
7.1.60.0110.01419.70
7.1.50.0120.00616.82
7.1.00.0030.07722.28
7.0.200.0040.00416.90
7.0.140.0030.07322.08
7.0.100.0130.04020.03
7.0.90.0030.04319.88
7.0.80.0100.03019.94
7.0.70.0030.04319.87
7.0.60.0030.03719.87
7.0.50.0070.04020.29
7.0.40.0030.04020.14
7.0.30.0100.03720.10
7.0.20.0070.04020.07
7.0.10.0070.04320.09
7.0.00.0030.04720.14
5.6.280.0000.07321.11
5.6.250.0000.04720.71
5.6.240.0070.04020.69
5.6.230.0100.03720.71
5.6.220.0000.05020.59
5.6.210.0130.03320.57
5.6.200.0030.05021.11
5.6.190.0070.04021.05
5.6.180.0030.04720.90
5.6.170.0030.04321.13
5.6.160.0030.04321.03
5.6.150.0030.04021.07
5.6.140.0070.04021.11
5.6.130.0000.05320.99
5.6.120.0070.07721.13
5.6.110.0070.04020.93
5.6.100.0070.08021.04
5.6.90.0070.08020.99
5.6.80.0070.08020.34
5.6.70.0000.06320.48
5.6.60.0070.08020.41
5.6.50.0000.08020.38
5.6.40.0070.08020.38
5.6.30.0170.03320.43
5.6.20.0030.08020.29
5.6.10.0030.08320.39
5.6.00.0100.03720.35
5.5.380.0070.04020.36
5.5.370.0070.04320.41
5.5.360.0030.05020.33
5.5.350.0030.06020.44
5.5.340.0100.03320.80
5.5.330.0070.03320.90
5.5.320.0070.04320.72
5.5.310.0070.05320.88
5.5.300.0070.04020.75
5.5.290.0070.04020.82
5.5.280.0100.03720.90
5.5.270.0100.04320.90
5.5.260.0130.06320.87
5.5.250.0100.03320.70
5.5.240.0100.08020.27
5.5.230.0030.07020.19
5.5.220.0000.05720.25
5.5.210.0030.04020.23
5.5.200.0130.07320.21
5.5.190.0070.09020.16
5.5.180.0130.07720.27
5.5.160.0200.06719.98
5.5.150.0030.04720.26
5.5.140.0100.07320.08
5.5.130.0030.05320.11
5.5.120.0130.06320.16
5.5.110.0070.07320.21
5.5.100.0070.05720.16
5.5.90.0030.08720.07
5.5.80.0130.06720.05
5.5.70.0030.07320.08
5.5.60.0130.06720.00
5.5.50.0030.06019.99
5.5.40.0070.07720.10
5.5.30.0170.06020.14
5.5.20.0070.07719.92
5.5.10.0130.06020.09
5.5.00.0230.06720.06
5.4.450.0000.04319.39
5.4.440.0030.04019.39
5.4.430.0070.08319.39
5.4.420.0100.08019.29
5.4.410.0130.07319.22
5.4.400.0100.04318.91
5.4.390.0200.06319.03
5.4.380.0070.04318.95
5.4.370.0070.06019.23
5.4.360.0070.06018.95
5.4.350.0070.07319.02
5.4.340.0170.03718.95
5.4.320.0030.08018.78
5.4.310.0070.07718.96
5.4.300.0070.05719.04
5.4.290.0100.07718.78
5.4.280.0070.06318.81
5.4.270.0130.06719.24
5.4.260.0070.07718.78
5.4.250.0070.06018.78
5.4.240.0070.04318.89
5.4.230.0100.06719.02
5.4.220.0130.04318.80
5.4.210.0170.06318.89
5.4.200.0070.07718.77
5.4.190.0100.07019.04
5.4.180.0100.06718.95
5.4.170.0030.04718.93
5.4.160.0030.05719.04
5.4.150.0100.06319.21
5.4.140.0130.04316.27
5.4.130.0130.06316.36
5.4.120.0070.07016.38
5.4.110.0000.04716.42
5.4.100.0070.07016.36
5.4.90.0100.06716.25
5.4.80.0030.07016.29
5.4.70.0100.03716.34
5.4.60.0100.07016.14
5.4.50.0070.07016.28
5.4.40.0000.07016.46
5.4.30.0100.07716.40
5.4.20.0000.05316.18
5.4.10.0030.05316.38
5.4.00.0170.06715.56
5.3.290.0030.06314.52
5.3.280.0130.04314.59
5.3.270.0070.08314.54
5.3.260.0130.06014.46
5.3.250.0100.04014.46
5.3.240.0030.07314.55
5.3.230.0070.06014.59
5.3.220.0070.07314.40
5.3.210.0100.07014.51
5.3.200.0070.08014.56
5.3.190.0030.04714.53
5.3.180.0100.07014.55
5.3.170.0100.07714.52
5.3.160.0070.06314.57
5.3.150.0070.06314.52
5.3.140.0070.05314.54
5.3.130.0000.08314.54
5.3.120.0030.07314.51
5.3.110.0130.06714.52
5.3.100.0070.06714.02
5.3.90.0030.08313.95
5.3.80.0070.07013.97
5.3.70.0130.06714.00
5.3.60.0100.07313.97
5.3.50.0100.07013.95
5.3.40.0030.04713.80
5.3.30.0070.04713.77
5.3.20.0130.07013.65
5.3.10.0100.04313.60
5.3.00.0100.07013.59
5.2.170.0000.04711.08
5.2.160.0030.06011.17
5.2.150.0070.04710.97
5.2.140.0100.03010.98
5.2.130.0030.06710.92
5.2.120.0070.05310.95
5.2.110.0000.06011.04
5.2.100.0000.04711.11
5.2.90.0100.05711.09
5.2.80.0030.03710.93
5.2.70.0070.06010.96
5.2.60.0130.04310.86
5.2.50.0070.06010.93
5.2.40.0000.03710.83
5.2.30.0000.06010.96
5.2.20.0000.04010.82
5.2.10.0000.03310.87
5.2.00.0000.05310.80
5.1.60.0070.0339.87
5.1.50.0070.02710.05
5.1.40.0030.02710.05
5.1.30.0100.04310.45
5.1.20.0100.05010.43
5.1.10.0000.0479.91
5.1.00.0070.03710.11
5.0.50.0000.0408.66
5.0.40.0070.0438.47
5.0.30.0030.0508.33
5.0.20.0100.0278.28
5.0.10.0030.0438.28
5.0.00.0000.0408.28
4.4.90.0030.0178.28
4.4.80.0070.0178.28
4.4.70.0070.0308.28
4.4.60.0030.0308.28
4.4.50.0070.0108.28
4.4.40.0030.0438.28
4.4.30.0000.0338.28
4.4.20.0000.0278.28
4.4.10.0030.0208.28
4.4.00.0000.0378.28
4.3.110.0000.0208.28
4.3.100.0000.0378.28
4.3.90.0030.0208.28
4.3.80.0000.0478.28
4.3.70.0070.0238.28
4.3.60.0030.0308.28
4.3.50.0000.0208.28
4.3.40.0070.0438.28
4.3.30.0030.0338.28
4.3.20.0030.0338.28
4.3.10.0000.0208.28
4.3.00.0000.0278.28

preferences:
67.69 ms | 401 KiB | 5 Q