3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = ["a", "b", "c", "d", "e", "f"]; foreach($arr as $k => $v) $arr[$k] = ["current" => $v, "next" => ""]; foreach($arr as $k => $v) { if(isset($arr[$k+1])) $arr[$k]["next"] = &$arr[$k+1]["current"]; else $arr[$k]["next"] = ""; } print_r($arr); $arr[1]["current"] = "c"; print_r($arr);

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)
8.3.60.0090.01216.75
8.3.50.0110.00418.07
8.3.40.0140.00018.80
8.3.30.0110.00418.57
8.3.20.0000.00820.38
8.3.10.0040.00423.66
8.3.00.0090.00019.55
8.2.180.0150.00716.75
8.2.170.0120.00322.96
8.2.160.0090.00620.38
8.2.150.0030.00624.18
8.2.140.0070.00024.66
8.2.130.0030.00626.16
8.2.120.0040.00417.59
8.2.110.0000.00820.43
8.2.100.0090.00317.91
8.2.90.0000.00719.28
8.2.80.0050.00317.97
8.2.70.0040.00418.05
8.2.60.0090.00017.63
8.2.50.0060.00317.63
8.2.40.0030.00619.35
8.2.30.0080.00020.51
8.2.20.0060.00317.75
8.2.10.0070.00018.13
8.2.00.0040.00418.00
8.1.280.0060.00925.92
8.1.270.0030.00623.83
8.1.260.0040.00726.35
8.1.250.0070.00028.09
8.1.240.0060.00323.86
8.1.230.0040.00822.20
8.1.220.0060.00317.91
8.1.210.0030.00619.04
8.1.200.0050.00317.47
8.1.190.0030.00617.22
8.1.180.0040.00418.10
8.1.170.0080.00017.62
8.1.160.0040.00422.01
8.1.150.0040.00418.87
8.1.140.0040.00421.23
8.1.130.0030.00317.62
8.1.120.0030.00317.49
8.1.110.0020.00517.45
8.1.100.0040.00417.36
8.1.90.0030.00317.45
8.1.80.0050.00317.51
8.1.70.0070.00017.46
8.1.60.0030.00617.59
8.1.50.0060.00317.53
8.1.40.0040.00417.52
8.1.30.0000.00817.67
8.1.20.0040.00417.68
8.1.10.0070.00017.48
8.1.00.0070.00017.40
8.0.300.0040.00419.98
8.0.290.0050.00216.75
8.0.280.0000.00818.36
8.0.270.0020.00517.22
8.0.260.0000.00717.21
8.0.250.0040.00416.95
8.0.240.0060.00016.98
8.0.230.0050.00316.98
8.0.220.0000.00716.77
8.0.210.0040.00416.91
8.0.200.0030.00716.92
8.0.190.0000.00817.00
8.0.180.0000.00816.88
8.0.170.0030.00516.78
8.0.160.0050.00316.99
8.0.150.0000.00816.88
8.0.140.0000.00716.79
8.0.130.0050.00013.41
8.0.120.0000.00716.82
8.0.110.0000.00716.93
8.0.100.0040.00416.94
8.0.90.0030.00516.96
8.0.80.0110.00316.94
8.0.70.0000.00816.79
8.0.60.0000.00716.89
8.0.50.0000.00816.79
8.0.30.0070.01116.83
8.0.20.0120.00617.40
8.0.10.0000.00716.90
8.0.00.0110.01016.72
7.4.330.0000.00515.08
7.4.320.0020.00516.46
7.4.300.0030.00316.61
7.4.290.0070.00016.50
7.4.280.0050.00216.58
7.4.270.0030.00316.40
7.4.260.0030.00916.39
7.4.250.0070.00016.47
7.4.240.0050.00216.57
7.4.230.0030.00316.42
7.4.220.0060.01316.52
7.4.210.0040.01116.70
7.4.200.0000.00716.59
7.4.160.0030.01316.77
7.4.150.0100.00717.40
7.4.140.0120.00817.86
7.4.130.0070.01216.45
7.4.120.0100.00716.51
7.4.110.0050.01416.68
7.4.100.0100.00716.47
7.4.90.0070.01016.33
7.4.80.0020.01519.39
7.4.70.0090.00916.57
7.4.60.0080.00716.48
7.4.50.0040.00416.51
7.4.40.0070.01016.66
7.4.30.0070.01616.63
7.4.00.0030.01414.86
7.3.330.0050.00013.27
7.3.320.0060.00013.25
7.3.310.0050.00316.37
7.3.300.0040.00416.31
7.3.290.0110.00816.35
7.3.280.0080.00916.31
7.3.270.0080.00817.40
7.3.260.0030.01416.50
7.3.250.0060.01116.45
7.3.240.0110.00816.36
7.3.230.0130.00416.52
7.3.210.0140.00416.31
7.3.200.0100.01016.38
7.3.190.0150.00016.66
7.3.180.0060.01216.61
7.3.170.0100.00716.29
7.3.160.0070.00916.57
7.2.330.0090.00916.62
7.2.320.0070.01016.81
7.2.310.0040.01216.64
7.2.300.0090.00616.41
7.2.290.0070.01416.47
7.2.00.0070.00719.12
7.1.100.0190.00317.93
7.1.70.0090.00917.11
7.1.60.0110.01419.11
7.1.50.0030.02117.02
7.1.00.0100.07022.51
7.0.200.0190.00014.96
7.0.60.0100.06019.93
7.0.50.0070.08017.96
7.0.40.0030.04720.13
7.0.30.0230.07320.25
7.0.20.0230.08020.26
7.0.10.0270.07720.23
7.0.00.0100.08320.05
5.6.280.0030.03020.92
5.6.210.0000.07020.70
5.6.200.0100.08018.16
5.6.190.0100.08320.61
5.6.180.0230.07720.58
5.6.170.0200.06020.50
5.6.160.0100.07720.50
5.6.150.0130.07718.12
5.6.140.0070.07318.18
5.6.130.0170.07318.26
5.6.120.0100.04321.11
5.6.110.0030.04720.95
5.6.100.0100.04021.12
5.6.90.0100.07720.96
5.6.80.0070.08020.39
5.6.70.4270.04320.47
5.5.350.0230.06020.41
5.5.340.0070.08318.05
5.5.330.0170.07720.18
5.5.320.0370.06020.31
5.5.310.0230.05320.41
5.5.300.0030.05318.03
5.5.290.0100.03717.98
5.5.280.0130.07720.86
5.5.270.0100.04020.83
5.5.260.0070.04020.88
5.5.250.0070.08320.70
5.5.240.0000.04720.26
5.4.450.0830.06319.36
5.4.440.0530.06719.36
5.4.430.0600.06019.39
5.4.420.0470.06019.34
5.4.410.0600.05019.29
5.4.400.0500.05319.10
5.4.390.0770.06019.32
5.4.380.0700.07019.19
5.4.370.0730.07719.02
5.4.360.0730.06019.26
5.4.350.0570.05719.02
5.4.340.0670.05319.21
5.4.320.0630.06318.72
5.4.310.0630.05018.99
5.4.300.0830.06319.09
5.4.290.0870.07019.30
5.4.280.0700.07319.09
5.4.270.0600.08719.21
5.4.260.0800.04719.27
5.4.250.0570.06318.89
5.4.240.0570.06019.23
5.4.230.0670.06019.17
5.4.220.0700.05718.86
5.4.210.0630.06019.09
5.4.200.0600.06319.31
5.4.190.0600.05019.20
5.4.180.0770.04319.30
5.4.170.0530.06319.17
5.4.160.1100.06019.17
5.4.150.0600.05319.20
5.4.140.0600.05716.43
5.4.130.0700.05316.70
5.4.120.0670.04716.70
5.4.110.0500.07016.43
5.4.100.0870.06016.57
5.4.90.0730.05016.40
5.4.80.0570.05716.41
5.4.70.0570.05716.58
5.4.60.0730.04016.53
5.4.50.0470.06316.52
5.4.40.0770.06316.57
5.4.30.0500.04716.51
5.4.20.0530.05716.50
5.4.10.0670.06316.35
5.4.00.0700.03715.79

preferences:
74.51 ms | 400 KiB | 5 Q