3v4l.org

run code in 300+ PHP versions simultaneously
<?php $old_arr = array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40); $size = count($old_arr); for($i=0;$i<=39;$i++){ if ($i<=7){ $a[] = $old_arr[$i]; }elseif ($i>7 && $i<=15){ $b[] = $old_arr[$i]; }elseif ($i>15 && $i<=23){ $c[] = $old_arr[$i]; }elseif ($i>23 && $i<=31){ $d[] = $old_arr[$i]; } elseif ($i>31){ $e[] = $old_arr[$i]; } } print_r($a); print_r($b); print_r($c); print_r($d); print_r($e); $new_arr = array(); $group_order[] = array(); unset($group_order[0]); $group_order = array_values($group_order); $temp = 0; while(count($new_arr)<$size){ if (!empty($group_order)){ $temp = $group_order[4]; } foreach ($group_order as $i => $value) { unset($group_order[$i]); } $group_order = array_values($group_order); while(count($group_order)<5){ $x=mt_rand(1,5); if(in_array($x,$group_order) == false && $x != $temp){ $group_order[] = $x; $temp = 0; } } print_r($group_order); foreach ($group_order as $value){ if ($value == 1){ $idx = mt_rand(0,(count($a)-1)); $new_arr[] = $a[$idx]; unset($a[$idx]); $a = array_values($a); }elseif ($value == 2){ $idx = mt_rand(0,(count($b)-1)); $new_arr[] = $b[$idx]; unset($b[$idx]); $b = array_values($b); }elseif ($value == 3){ $idx = mt_rand(0,(count($c)-1)); $new_arr[] = $c[$idx]; unset($c[$idx]); $c = array_values($c); }elseif ($value == 4){ $idx = mt_rand(0,(count($d)-1)); $new_arr[] = $d[$idx]; unset($d[$idx]); $d = array_values($d); }elseif ($value == 5){ $idx = mt_rand(0,(count($e)-1)); $new_arr[] = $e[$idx]; unset($e[$idx]); $e = array_values($e); } } } print_r($new_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)
7.3.120.0000.01514.92
7.3.110.0030.01014.82
7.3.100.0070.00714.85
7.3.90.0110.00415.02
7.3.80.0040.01115.05
7.3.70.0000.01514.94
7.3.60.0050.00514.76
7.3.50.0030.01414.89
7.3.40.0060.01014.63
7.3.30.0170.00014.90
7.3.20.0060.00316.68
7.3.10.0070.01116.83
7.3.00.0100.00616.54
7.2.240.0090.00915.02
7.2.230.0110.00715.11
7.2.220.0060.01015.29
7.2.210.0030.01215.08
7.2.200.0120.00615.08
7.2.190.0090.00615.27
7.2.180.0070.00715.07
7.2.170.0070.01015.03
7.2.160.0060.00915.18
7.2.150.0030.01216.82
7.2.140.0000.01516.98
7.2.130.0060.00616.89
7.2.120.0070.01117.03
7.2.110.0060.00917.11
7.2.100.0110.00417.05
7.2.90.0140.00316.86
7.2.80.0070.00316.86
7.2.70.0080.00416.89
7.2.60.0040.01517.06
7.2.50.0090.00617.05
7.2.40.0070.00717.05
7.2.30.0090.00916.96
7.2.20.0060.00916.91
7.2.10.0000.01216.98
7.2.00.0070.00918.21
7.1.330.0060.01015.86
7.1.320.0060.00915.81
7.1.310.0090.00615.92
7.1.300.0030.01315.75
7.1.290.0070.01015.98
7.1.280.0040.01115.81
7.1.270.0110.00715.85
7.1.260.0060.00615.68
7.1.250.0030.00915.84
7.1.70.0110.00617.20
7.1.60.0100.01619.70
7.1.50.0130.01316.98
7.1.00.0070.07322.40
7.0.200.0040.00416.98
7.0.140.0070.07021.99
7.0.100.0100.08020.04
7.0.90.0070.06320.19
7.0.80.0100.07720.06
7.0.70.0030.08019.96
7.0.60.0100.08019.99
7.0.50.0100.08320.36
7.0.40.0130.06720.18
7.0.30.0030.07720.17
7.0.20.0030.07720.11
7.0.10.0170.07720.03
7.0.00.0100.08020.03
5.6.280.0070.07320.91
5.6.250.0070.09020.61
5.6.240.0200.07320.77
5.6.230.0100.08720.71
5.6.220.0000.09020.69
5.6.210.0070.08020.68
5.6.200.0170.05021.05
5.6.190.0100.08321.07
5.6.180.0200.06321.18
5.6.170.0170.07020.96
5.6.160.0070.07721.04
5.6.150.0170.07721.11
5.6.140.0130.08020.91
5.6.130.0030.08721.15
5.6.120.0100.06721.19
5.6.110.0100.07021.02
5.6.100.0070.08721.18
5.6.90.0170.07721.05
5.6.80.0200.07020.43
5.6.70.0070.08020.41
5.6.60.0130.06320.42
5.6.50.0170.07720.50
5.6.40.0100.04720.42
5.6.30.0130.06320.51
5.6.20.0130.07320.41
5.6.10.0230.06720.45
5.6.00.0130.07720.40
5.5.380.0100.08320.41
5.5.370.0170.07320.44
5.5.360.0100.08320.37
5.5.350.0030.05720.41
5.5.340.0130.05720.90
5.5.330.0100.08020.91
5.5.320.0070.09320.82
5.5.310.0230.06720.85
5.5.300.0100.08020.89
5.5.290.0170.06320.77
5.5.280.0030.08720.90
5.5.270.0100.06720.78
5.5.260.0070.06020.80
5.5.250.0170.07720.66
5.5.240.0130.06720.30
5.5.230.0000.08320.16
5.5.220.0130.07020.22
5.5.210.0130.07320.27
5.5.200.0270.06720.24
5.5.190.0070.06720.23
5.5.180.0030.08020.25
5.5.160.0130.07720.10
5.5.150.0130.07320.25
5.5.140.0070.08320.18
5.5.130.0130.07320.20
5.5.120.0170.07320.27
5.5.110.0070.07020.24
5.5.100.0130.07020.11
5.5.90.0130.07320.06
5.5.80.0100.06020.18
5.5.70.0100.07720.05
5.5.60.0130.07020.10
5.5.50.0130.07320.01
5.5.40.0070.08020.01
5.5.30.0130.07720.10
5.5.20.0030.08320.09
5.5.10.0170.07720.05
5.5.00.0030.06720.09
5.4.450.0130.07019.42
5.4.440.0100.07319.37
5.4.430.0070.08319.48
5.4.420.0100.06319.50
5.4.410.0130.07319.32
5.4.400.0200.06019.04
5.4.390.0130.07719.03
5.4.380.0100.07018.90
5.4.370.0030.08319.23
5.4.360.0070.07718.90
5.4.350.0200.06319.22
5.4.340.0170.07319.21
5.4.320.0070.07319.23
5.4.310.0130.06319.04
5.4.300.0130.06319.05
5.4.290.0030.07718.89
5.4.280.0130.06719.11
5.4.270.0130.08019.18
5.4.260.0030.08319.13
5.4.250.0100.07719.13
5.4.240.0030.05319.15
5.4.230.0130.06719.03
5.4.220.0130.06718.84
5.4.210.0030.08319.03
5.4.200.0070.08018.95
5.4.190.0070.07319.03
5.4.180.0070.05719.12
5.4.170.0030.08719.13
5.4.160.0030.07019.07
5.4.150.0130.07019.20
5.4.140.0070.07016.36
5.4.130.0070.06716.41
5.4.120.0000.07316.45
5.4.110.0130.06316.36
5.4.100.0070.08016.51
5.4.90.0130.06716.39
5.4.80.0100.07016.50
5.4.70.0100.06716.33
5.4.60.0130.06716.45
5.4.50.0030.07716.37
5.4.40.0100.07016.42
5.4.30.0030.08016.29
5.4.20.0100.07316.48
5.4.10.0130.05716.39
5.4.00.0170.06715.82
5.3.290.0100.07314.64
5.3.280.0070.07014.68
5.3.270.0030.08014.61
5.3.260.0170.07014.73
5.3.250.0130.07014.70
5.3.240.0130.05714.62
5.3.230.0000.07714.61
5.3.220.0000.06314.70
5.3.210.0100.08314.61
5.3.200.0170.07014.53
5.3.190.0070.07314.55
5.3.180.0070.07714.71
5.3.170.0070.07714.73
5.3.160.0200.06014.57
5.3.150.0170.06714.52
5.3.140.0100.07314.50
5.3.130.0100.07314.50
5.3.120.0130.07314.67
5.3.110.0100.07314.52
5.3.100.0070.07014.04
5.3.90.0100.07714.00
5.3.80.0070.08013.96
5.3.70.0170.06713.97
5.3.60.0100.05314.09
5.3.50.0200.06013.96
5.3.40.0100.06713.91
5.3.30.0100.07013.91
5.3.20.0030.07713.79
5.3.10.0130.06013.79
5.3.00.0130.06313.79
5.2.170.0130.06013.79
5.2.160.0070.04013.79
5.2.150.0000.06713.79
5.2.140.0070.07013.79
5.2.130.0030.06313.79
5.2.120.0030.05713.79
5.2.110.0000.06713.79
5.2.100.0070.06313.79
5.2.90.0070.06013.79
5.2.80.0070.06013.79
5.2.70.0030.06313.79
5.2.60.0000.07013.79
5.2.50.0030.04313.79
5.2.40.0130.05013.79
5.2.30.0070.05713.79
5.2.20.0170.04013.79
5.2.10.0030.06313.79
5.2.00.0030.06013.79
5.1.60.0100.03713.79
5.1.50.0000.06013.79
5.1.40.0030.05713.79
5.1.30.0000.05713.79
5.1.20.0070.05713.79
5.1.10.0070.05013.79
5.1.00.0030.05013.79
5.0.50.0070.04313.79
5.0.40.0000.04713.79
5.0.30.0130.05013.79
5.0.20.0070.03313.79
5.0.10.0000.03313.79
5.0.00.0070.06013.79
4.4.90.0100.03313.79
4.4.80.0030.03313.79
4.4.70.0030.03713.79
4.4.60.0070.02013.79
4.4.50.0030.03013.79
4.4.40.0000.04313.79
4.4.30.0000.04313.79
4.4.20.0130.02713.79
4.4.10.0030.03713.79
4.4.00.0030.05313.79
4.3.110.0030.02313.79
4.3.100.0030.01713.79
4.3.90.0030.01713.79
4.3.80.0100.02713.79
4.3.70.0000.02013.79
4.3.60.0000.02013.79
4.3.50.0000.01713.79
4.3.40.0000.02313.79
4.3.30.0030.01713.79
4.3.20.0000.02013.79
4.3.10.0070.01713.79
4.3.00.0030.01313.79

preferences:
33.68 ms | 401 KiB | 5 Q