Online PHP editor | perf for 67RfP

@ 2013-11-11T03:46:28Z

<?php
$old_arr=array(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20);

$size = count($old_arr);
print_r($size);

for($i=0;$i<=19;$i++){
    if ($i<=4){
        $a[] = $old_arr[$i];
    }elseif ($i>4 && $i<=9){
        $b[] = $old_arr[$i];
    }elseif ($i>9 && $i<=14){
        $c[] = $old_arr[$i];
    }elseif ($i>14){
        $d[] = $old_arr[$i];
    }
}
print_r($a);
print_r($b);
print_r($c);
print_r($d);

$new_arr = array();
$group_order[] = array();
$temp = 0;
while(count($new_arr)<$size){
    if !empty($group_order){
        $temp = $group_order[3];
    }
foreach ($group_order as $i => $value) {
    unset($group_order[$i]);
}
$group_order = array_values($group_order);



while(count($group_order)<4){
    $x=mt_rand(1,4);
    if(in_array($x,$group_order) == false && $x != $temp){
        $group_order[] = $x;
        $temp = 0;
    }	
}

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);
    }
}

}

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).

Version	System time (s)	User time (s)	Memory (MiB)
5.4.21	0.005	0.042	12.37
5.4.20	0.006	0.039	12.37
5.4.19	0.006	0.036	12.37
5.4.18	0.005	0.039	12.37
5.4.17	0.008	0.039	12.38
5.4.16	0.005	0.040	12.37
5.4.15	0.006	0.038	12.37
5.4.14	0.004	0.038	12.06
5.4.13	0.005	0.036	12.04
5.4.12	0.009	0.038	12.00
5.4.11	0.007	0.039	12.00
5.4.10	0.007	0.037	12.00
5.4.9	0.006	0.042	12.00
5.4.8	0.005	0.040	12.00
5.4.7	0.006	0.036	12.00
5.4.6	0.003	0.038	12.00
5.4.5	0.007	0.034	12.00
5.4.4	0.007	0.035	11.99
5.4.3	0.007	0.038	11.98
5.4.2	0.008	0.036	11.98
5.4.1	0.005	0.038	11.98
5.4.0	0.008	0.037	11.47
5.3.27	0.007	0.040	12.72
5.3.26	0.006	0.040	12.72
5.3.25	0.007	0.041	12.72
5.3.24	0.006	0.039	12.72
5.3.23	0.007	0.039	12.71
5.3.22	0.007	0.037	12.68
5.3.21	0.007	0.039	12.68
5.3.20	0.005	0.037	12.68
5.3.19	0.004	0.040	12.68
5.3.18	0.005	0.040	12.67
5.3.17	0.005	0.037	12.67
5.3.16	0.005	0.037	12.67
5.3.15	0.006	0.039	12.67
5.3.14	0.006	0.037	12.66
5.3.13	0.005	0.044	12.66
5.3.12	0.007	0.040	12.66
5.3.11	0.006	0.039	12.66
5.3.10	0.008	0.036	12.12
5.3.9	0.006	0.037	12.08
5.3.8	0.005	0.039	12.07
5.3.7	0.005	0.041	12.07
5.3.6	0.006	0.035	12.06
5.3.5	0.006	0.037	12.00
5.3.4	0.006	0.039	12.00
5.3.3	0.008	0.036	11.95
5.3.2	0.005	0.037	11.71
5.3.1	0.007	0.034	11.68
5.3.0	0.006	0.036	11.67

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