3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = "hello everybody at here"; $array = explode(" ",$input); function permutation($arr, $ts, &$newArray) { if ($ts != "") $newArray[] = $ts; for ($i = 0; $i < count($arr); $i++) { $temp = $arr; $elem = array_splice($temp, $i, 1); if (count($temp) > 0) { permutation($temp, $ts . " " . $elem[0], $newArray); } else { $newArray[] = $ts . " " . $elem[0]; } } } $newArray = []; permutation($array, "", $newArray); echo '<pre>'; print_r($newArray);

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)
8.4.140.0090.01317.64
8.4.130.0090.01018.73
8.4.120.0140.00623.97
8.4.110.0130.00819.70
8.4.100.0090.01018.72
8.4.90.0060.00422.26
8.4.80.0120.00418.87
8.4.70.0040.00617.87
8.4.60.0130.01018.77
8.4.50.0120.00818.77
8.4.40.0090.01119.39
8.4.30.0060.01320.45
8.4.20.0000.01617.87
8.4.10.0040.00420.32
8.3.270.0110.01016.36
8.3.260.0100.00916.73
8.3.250.0140.00519.13
8.3.240.0050.00517.39
8.3.230.0090.00116.57
8.3.220.0130.00518.98
8.3.210.0100.00516.64
8.3.200.0040.00416.80
8.3.190.0070.00217.31
8.3.180.0130.00717.09
8.3.170.0090.00920.69
8.3.160.0090.00918.36
8.3.150.0000.00817.34
8.3.140.0050.00318.37
8.3.130.0030.00618.51
8.3.120.0090.00920.78
8.3.110.0040.00418.61
8.3.100.0120.00318.26
8.3.90.0110.00726.77
8.3.80.0090.00016.75
8.3.70.0110.00416.88
8.3.60.0090.00916.88
8.3.50.0070.00718.13
8.3.40.0100.00722.17
8.3.30.0140.00719.34
8.3.20.0080.00024.18
8.3.10.0030.00724.66
8.3.00.0050.00326.16
8.2.290.0110.00820.66
8.2.280.0100.00818.57
8.2.270.0140.00417.49
8.2.260.0140.00416.56
8.2.250.0080.00016.56
8.2.240.0130.00318.75
8.2.230.0060.00320.94
8.2.220.0040.00424.06
8.2.210.0160.00326.77
8.2.200.0000.00918.41
8.2.190.0140.00316.63
8.2.180.0070.01325.92
8.2.170.0070.00719.13
8.2.160.0070.01122.96
8.2.150.0040.00425.66
8.2.140.0030.00524.66
8.2.130.0000.00826.16
8.2.120.0050.00326.16
8.2.110.0090.00022.02
8.2.100.0130.00019.48
8.2.90.0050.00317.75
8.2.80.0000.00817.97
8.2.70.0040.00417.63
8.2.60.0000.00817.63
8.2.50.0060.00317.98
8.2.40.0000.00818.03
8.2.30.0060.00318.03
8.2.20.0000.00720.45
8.2.10.0050.00218.13
8.2.00.0080.00019.23
8.1.330.0100.00821.87
8.1.320.0120.00715.74
8.1.310.0120.00617.68
8.1.300.0100.00017.96
8.1.290.0060.00330.84
8.1.280.0120.00325.92
8.1.270.0080.00023.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.01020.36
8.1.230.0040.00717.89
8.1.220.0060.00317.79
8.1.210.0080.00018.77
8.1.200.0030.00617.23
8.1.190.0040.00417.13
8.1.180.0030.00618.10
8.1.170.0040.00417.66
8.1.160.0040.00420.55
8.1.150.0000.00818.57
8.1.140.0040.00417.51
8.1.130.0030.00318.82
8.1.120.0000.00717.47
8.1.110.0000.00717.45
8.1.100.0050.00217.48
8.1.90.0040.00417.38
8.1.80.0040.00417.53
8.1.70.0000.00717.47
8.1.60.0030.00517.54
8.1.50.0040.00417.51
8.1.40.0090.00017.52
8.1.30.0110.00717.66
8.1.20.0170.00017.70
8.1.10.0090.00017.56
8.1.00.0040.00417.52
8.0.300.0090.00018.77
8.0.290.0030.00516.75
8.0.280.0070.00018.46
8.0.270.0070.00016.87
8.0.260.0000.00618.45
8.0.250.0050.00216.95
8.0.240.0050.00216.86
8.0.230.0030.00316.87
8.0.220.0000.00716.97
8.0.210.0030.00416.93
8.0.200.0040.00416.90
8.0.190.0040.00717.00
8.0.180.0050.00216.86
8.0.170.0000.01216.85
8.0.160.0040.00416.74
8.0.150.0000.00916.75
8.0.140.0090.00316.84
8.0.130.0040.00716.80
8.0.120.0130.00016.79
8.0.110.0060.00616.92
8.0.100.0070.00716.95
8.0.90.0120.00216.86
8.0.80.0120.00016.91
8.0.70.0130.00016.87
8.0.60.0120.00616.75
8.0.50.0120.00916.77
8.0.30.0180.00416.77
8.0.20.0090.00916.96
8.0.10.0190.00017.00
7.4.330.0000.00515.55
7.4.320.0000.00616.61
7.4.300.0060.00016.46
7.4.290.0040.00416.36
7.4.280.0120.00316.43
7.4.270.0100.00016.43
7.4.260.0030.00716.51
7.4.250.0110.00016.48
7.4.240.0080.00416.57
7.4.230.0150.00016.44
7.4.220.0130.00316.63
7.4.210.0160.00316.58
7.4.200.0130.00516.39
7.4.190.0140.00316.54
7.4.180.0160.00416.56
7.4.160.0190.00016.48
7.4.150.0130.00716.54
7.4.140.0120.00816.52
7.4.130.0130.00416.43
7.4.120.0160.00316.35
7.4.110.0170.00316.31
7.4.100.0140.00616.54
7.4.90.0130.00516.35
7.4.80.0030.01016.46
7.4.70.0110.00716.28
7.4.60.0120.00616.47
7.4.50.0100.00516.38
7.4.40.0140.00316.41
7.4.30.0140.00516.46
7.4.20.0160.00416.27
7.4.10.0110.00716.56
7.4.00.0150.00316.34

preferences:
110.89 ms | 403 KiB | 5 Q