3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = ['aaa', 'bbb', 'ccc', 'ddd']; $k = count($arr); $query = []; $parents = []; for ($i = 1; $i < $k; $i++) { for ($j = 0; $j < $k; $j++) { if ($j < $k - $i) { $query[$i][] = $arr[$j]; $parents[2 * $k - 1 - $j][] = $arr[$j]; } else { $query[2 * $k - 1 - $j][] = $arr[$j]; $parents[$i][] = $arr[$j]; } } } var_dump($query, $parents);

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)
8.5.30.0090.01017.76
8.5.20.0140.00719.58
8.5.10.0110.00916.61
8.5.00.0180.00520.20
8.4.180.0110.01219.69
8.4.170.0160.00623.69
8.4.160.0080.00525.80
8.4.150.0080.00516.89
8.4.140.0150.00617.75
8.4.130.0100.00617.50
8.4.120.0120.00822.50
8.4.110.0110.01022.34
8.4.100.0140.00717.76
8.4.90.0130.00918.73
8.4.80.0110.00817.64
8.4.70.0130.00917.77
8.4.60.0120.00818.73
8.4.50.0100.00920.33
8.4.40.0160.00619.30
8.4.30.0100.01017.44
8.4.20.0160.00319.73
8.4.10.0030.00917.52
8.3.300.0110.01120.87
8.3.290.0110.00918.52
8.3.280.0110.00918.23
8.3.270.0180.00916.43
8.3.260.0110.00716.81
8.3.250.0110.00919.03
8.3.240.0120.00416.75
8.3.230.0130.00716.72
8.3.220.0140.00417.33
8.3.210.0070.00116.90
8.3.200.0030.00516.68
8.3.190.0100.01017.22
8.3.180.0070.00918.59
8.3.170.0160.00317.03
8.3.160.0090.00916.34
8.3.150.0160.00319.04
8.3.140.0030.00617.20
8.3.130.0080.00818.59
8.3.120.0060.00319.16
8.3.110.0040.00720.94
8.3.100.0030.00624.06
8.3.90.0050.00326.77
8.3.80.0060.00318.55
8.3.70.0070.00716.50
8.3.60.0120.00916.75
8.3.50.0100.00818.31
8.3.40.0090.00618.80
8.3.30.0120.00418.84
8.3.20.0040.00420.25
8.3.10.0040.00423.41
8.3.00.0080.00023.43
8.2.300.0130.00918.11
8.2.290.0130.00620.46
8.2.280.0060.00218.99
8.2.270.0100.01017.15
8.2.260.0040.00416.67
8.2.250.0100.01016.98
8.2.240.0070.01117.20
8.2.230.0050.00222.58
8.2.220.0130.00637.54
8.2.210.0000.00826.77
8.2.200.0070.00318.16
8.2.190.0120.00418.33
8.2.180.0100.01018.29
8.2.170.0060.00922.96
8.2.160.0100.00319.32
8.2.150.0110.00424.18
8.2.140.0060.00324.66
8.2.130.0000.00826.16
8.2.120.0060.00617.75
8.2.110.0060.00320.96
8.2.100.0040.00817.91
8.2.90.0060.00319.17
8.2.80.0000.00817.97
8.2.70.0030.00617.63
8.2.60.0000.00817.93
8.2.50.0000.00718.28
8.2.40.0040.00420.60
8.2.30.0040.00419.19
8.2.20.0040.00418.08
8.2.10.0040.00418.14
8.2.00.0040.00418.12
8.1.340.0110.00617.62
8.1.330.0120.00823.64
8.1.320.0120.01016.13
8.1.310.0000.00816.66
8.1.300.0040.01220.10
8.1.290.0060.00330.84
8.1.280.0070.00725.92
8.1.270.0040.00422.19
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0050.00523.86
8.1.230.0110.00020.30
8.1.220.0040.00417.74
8.1.210.0030.00518.77
8.1.200.0060.00317.36
8.1.190.0040.00417.25
8.1.180.0000.00720.20
8.1.170.0000.00818.70
8.1.160.0080.00018.82
8.1.150.0000.00720.16
8.1.140.0040.00419.11
8.1.130.0050.00519.03
8.1.120.0000.00717.48
8.1.110.0030.00617.53
8.1.100.0040.00417.41
8.1.90.0040.00417.38
8.1.80.0000.00817.36
8.1.70.0050.00317.46
8.1.60.0080.00317.61
8.1.50.0070.00017.45
8.1.40.0040.00417.55
8.1.30.0000.00817.63
8.1.20.0030.00617.63
8.1.10.0040.00717.53
8.1.00.0050.00217.45
8.0.300.0080.00018.77
8.0.290.0000.00816.75
8.0.280.0070.00018.46
8.0.270.0000.00817.32
8.0.260.0000.00718.56
8.0.250.0000.00717.07
8.0.240.0040.00416.90
8.0.230.0070.00016.90
8.0.220.0060.00316.82
8.0.210.0050.00216.83
8.0.200.0030.00316.97
8.0.190.0090.00016.80
8.0.180.0040.00416.90
8.0.170.0060.00316.95
8.0.160.0040.00416.94
8.0.150.0030.00716.79
8.0.140.0000.00916.77
8.0.130.0060.00013.34
8.0.120.0070.00016.88
8.0.110.0070.00016.75
8.0.100.0080.00016.78
8.0.90.0040.00416.76
8.0.80.0040.01116.89
8.0.70.0000.00716.76
8.0.60.0080.00016.87
8.0.50.0060.00316.84
8.0.30.0120.00817.03
8.0.20.0090.01217.40
8.0.10.0000.00716.93
8.0.00.0090.01616.68
7.4.330.0020.00215.55
7.4.320.0030.00316.45
7.4.300.0000.00616.53
7.4.290.0070.00016.64
7.4.280.0000.00716.66
7.4.270.0070.00016.38
7.4.260.0030.00316.60
7.4.250.0040.00416.53
7.4.240.0050.00216.64
7.4.230.0070.00016.36
7.4.220.0070.01816.54
7.4.210.0120.00916.71
7.4.200.0070.00016.27
7.4.160.0050.01216.56
7.4.150.0140.00617.40
7.4.140.0090.01317.86
7.4.130.0140.00316.36
7.4.120.0130.00716.60
7.4.110.0040.01516.52
7.4.100.0070.01116.34
7.4.90.0140.00516.55
7.4.80.0040.01519.39
7.4.70.0030.01516.41
7.4.60.0090.00616.50
7.4.50.0070.00716.56
7.4.40.0000.01616.73
7.4.30.0100.00716.43
7.4.00.0030.01315.17
7.3.330.0050.00013.06
7.3.320.0000.00513.19
7.3.310.0000.00716.21
7.3.300.0000.00716.24
7.3.290.0060.01016.33
7.3.280.0050.01216.37
7.3.270.0110.00717.40
7.3.260.0110.00816.40
7.3.250.0110.00816.63
7.3.240.0100.01016.46
7.3.230.0140.00316.59
7.3.210.0110.00716.50
7.3.200.0140.00516.61
7.3.190.0110.00516.66
7.3.180.0070.01016.32
7.3.170.0110.00516.71
7.3.160.0130.00316.55
7.3.120.0030.01414.81
7.3.110.0110.00714.74
7.3.100.0060.00914.89
7.3.90.0120.00415.17
7.3.80.0030.01414.60
7.3.70.0120.00614.87
7.3.60.0030.00914.90
7.3.50.0060.00914.68
7.3.40.0070.00714.87
7.3.30.0030.01015.05
7.3.20.0030.01016.66
7.3.10.0000.01116.58
7.3.00.0030.01016.53
7.2.330.0090.01216.66
7.2.320.0070.01416.75
7.2.310.0110.01116.72
7.2.300.0120.01216.68
7.2.290.0110.00816.70
7.2.240.0110.00815.21
7.2.230.0040.01615.29
7.2.220.0070.01015.20
7.2.210.0000.01215.04
7.2.200.0100.00615.12
7.2.190.0060.00615.04
7.2.180.0080.00815.01
7.2.170.0090.00314.74
7.2.160.0000.00915.24
7.2.150.0040.00716.91
7.2.140.0070.00716.99
7.2.130.0060.00917.04
7.2.120.0090.00916.91
7.2.110.0120.00616.95
7.2.100.0030.01016.77
7.2.90.0180.00815.79
7.2.80.0000.01415.90
7.2.70.0620.00616.04
7.2.60.0700.01016.10
7.2.50.0410.00816.03
7.2.40.0620.01315.96
7.2.30.0750.00616.04
7.2.20.0810.00715.97
7.2.10.0840.00515.91
7.2.00.0810.00715.90
7.1.330.0100.00715.82
7.1.320.0070.00715.80
7.1.310.0100.00316.12
7.1.300.0060.01215.52
7.1.290.0070.01115.91
7.1.280.0130.00015.98
7.1.270.0000.01415.62
7.1.260.0070.00715.61
7.1.250.0040.01116.01
7.1.210.0110.01914.19
7.1.200.0050.01014.11
7.1.190.1250.00313.85
7.1.180.1180.00314.05
7.1.170.0850.00313.93
7.1.160.1270.00713.81
7.1.150.1110.00713.75
7.1.140.0870.00714.14
7.1.130.1310.01013.79
7.1.120.0920.00613.83
7.1.110.0780.01013.96
7.1.100.0790.00713.95
7.1.90.2030.01014.04
7.1.80.1530.00713.96
7.1.70.1330.00314.07
7.1.60.1070.00932.08
7.1.50.1420.01631.96
7.1.40.1040.01031.85
7.1.30.1030.01631.91
7.1.20.1350.01331.95
7.1.10.0800.00613.95
7.1.00.0890.01014.17
7.0.310.0840.01313.60
7.0.300.0880.00313.55
7.0.290.0950.00713.39
7.0.280.1120.00013.73
7.0.270.1780.01413.65
7.0.260.0940.01013.73
7.0.250.0810.00613.44
7.0.240.0870.01013.67
7.0.230.1180.00713.51
7.0.220.0970.01313.51
7.0.210.0870.00713.61
7.0.200.1300.01013.79
7.0.190.0920.01013.46
7.0.180.1120.00613.73
7.0.170.1120.00013.84
7.0.160.1060.01013.59
7.0.150.0930.00313.78
7.0.140.0970.00613.54
7.0.130.1640.00313.65
7.0.120.0900.00613.66
7.0.110.1250.00713.66
7.0.100.0930.00013.63
7.0.90.1360.01013.45
7.0.80.0710.00613.50
7.0.70.0700.00713.53
7.0.60.0990.01013.50
7.0.50.0110.00613.46
7.0.40.0970.00713.72
7.0.30.0190.00313.57
7.0.20.0030.01413.55
7.0.10.0820.00713.85
7.0.00.0960.00713.63

preferences:
116.21 ms | 2088 KiB | 5 Q