3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3,4]; $b = [ 1=>[ 2=>[ 3=>[ 4=>[] ] ] ] ]; $tmp = []; foreach ($a as $val) { if ($tmp) { if (isset($tmp[$val])) { $tmp = &$tmp[$val]; } else { break; } } else { $tmp = &$b[$val]; } } $tmp = ['aaaa']; var_dump($tmp); var_dump($b);

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)
8.3.60.0070.00716.63
8.3.50.0070.00718.36
8.3.40.0110.00418.82
8.3.30.0120.00318.57
8.3.20.0070.00024.18
8.3.10.0040.00424.66
8.3.00.0080.00026.16
8.2.180.0110.00725.92
8.2.170.0150.00018.91
8.2.160.0100.00322.96
8.2.150.0030.00625.66
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00026.16
8.2.110.0100.00020.56
8.2.100.0040.00817.72
8.2.90.0080.00017.84
8.2.80.0080.00019.39
8.2.70.0040.00417.62
8.2.60.0060.00317.75
8.2.50.0040.00417.75
8.2.40.0060.00317.63
8.2.30.0040.00417.79
8.2.20.0040.00418.18
8.2.10.0030.00619.31
8.2.00.0000.00719.32
8.1.280.0090.00625.92
8.1.270.0070.00023.99
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0030.00620.76
8.1.230.0040.00822.14
8.1.220.0060.00317.79
8.1.210.0000.01018.77
8.1.200.0030.00617.13
8.1.190.0040.00417.23
8.1.180.0080.00018.10
8.1.170.0030.00517.62
8.1.160.0000.00718.93
8.1.150.0000.00718.69
8.1.140.0000.00718.77
8.1.130.0040.00418.94
8.1.120.0050.00317.50
8.1.110.0100.00017.34
8.1.100.0000.00717.35
8.1.90.0040.00417.35
8.1.80.0040.00417.51
8.1.70.0030.00317.52
8.1.60.0040.00417.59
8.1.50.0090.00017.54
8.1.40.0060.00317.56
8.1.30.0120.00417.62
8.1.20.0150.00217.60
8.1.10.0140.00317.38
8.1.00.0120.00517.42
8.0.300.0000.00820.03
8.0.290.0040.00416.75
8.0.280.0000.00718.00
8.0.270.0090.00016.86
8.0.260.0000.00618.43
8.0.250.0040.00416.84
8.0.240.0080.00016.87
8.0.230.0030.00316.92
8.0.220.0030.00316.89
8.0.210.0070.00016.88
8.0.200.0000.00616.84
8.0.190.0000.00716.97
8.0.180.0000.00816.92
8.0.170.0030.00616.79
8.0.160.0110.00416.83
8.0.150.0060.01016.85
8.0.140.0070.00916.79
8.0.130.0050.00815.08
8.0.120.0100.00216.88
8.0.110.0060.00616.88
8.0.100.0080.00416.84
8.0.90.0060.00616.80
8.0.80.0070.00516.79
8.0.70.0100.00316.90
8.0.60.0080.00516.81
8.0.50.0070.00516.76
8.0.30.0040.00916.77
8.0.20.0080.00516.89
8.0.10.0050.00716.94
8.0.00.0060.00516.93
7.4.330.0040.00015.55
7.4.320.0000.00616.48
7.4.300.0000.00616.41
7.4.290.0030.00616.37
7.4.280.0120.00616.57
7.4.270.0110.00216.46
7.4.260.0130.00114.93
7.4.250.0130.00016.55
7.4.240.0060.00716.46
7.4.230.0080.00516.42
7.4.220.0100.00216.58
7.4.210.0070.00516.46
7.4.200.0060.00716.51
7.4.190.0070.00516.52
7.4.180.0060.00616.54
7.4.160.0100.00216.52
7.4.150.0080.00316.65
7.4.140.0070.00416.42
7.4.130.0070.00316.34
7.4.120.0080.00316.44
7.4.110.0080.00116.36
7.4.100.0080.00216.47
7.4.90.0080.00416.36
7.4.80.0100.00316.36
7.4.70.0080.00416.31
7.4.60.0080.00416.38
7.4.50.0080.00416.32
7.4.40.0060.00516.42
7.4.30.0060.00616.46
7.4.20.0070.00516.48
7.4.10.0090.00316.40
7.4.00.0050.00716.46
7.3.330.0090.00416.26
7.3.320.0100.00314.72
7.3.310.0070.00716.30
7.3.300.0070.00716.16
7.3.290.0090.00316.30
7.3.280.0050.00816.24
7.3.270.0080.00416.30
7.3.260.0080.00516.30
7.3.250.0070.00516.26
7.3.240.0090.00316.34
7.3.230.0090.00416.21
7.3.220.0060.00616.23
7.3.210.0100.00216.23
7.3.200.0090.00316.18
7.3.190.0070.00616.20
7.3.180.0050.00816.23
7.3.170.0090.00416.28
7.3.160.0090.00416.29
7.3.150.0090.00316.19
7.3.140.0050.00616.28
7.3.130.0110.00216.29
7.3.120.0080.00316.15
7.3.110.0090.00316.15
7.3.100.0070.00516.17
7.3.90.0080.00416.50
7.3.80.0080.00316.19
7.3.70.0090.00216.31
7.3.60.0070.00516.42
7.3.50.0070.00516.39
7.3.40.0080.00316.34
7.3.30.0090.00316.36
7.3.20.0080.00617.01
7.3.10.0060.00816.93
7.3.00.0080.00516.94

preferences:
66.95 ms | 401 KiB | 5 Q