not enough resources?

Anon

My script takes a lot of time and I guess resources for all its calculations. You can see the script at http://www.jpstevens.org/bio . There are pairs of characters which are used to solve a problem.
Whenever I have more than 5 pairs of characters I get the Timeout message. Even after setting the tiomeout to 2000!

Is there any way to make my script take less time, free resources or something?

amcgrath

The URL u passed doesn't exist... can you just paste the code here?

Anon

The correct URL is http://www.jpstevens.org/library/bio/ .

The code doesnt really matter. I just want to know ho to make scripts faster. For example i have a lot of FOR loops, can i somehow improve them?

The part where the script gets stuck working so i get the timeout message is during this function:

////////////////
function rest ($arr) {
if (sizeof($arr) == 0)
return FALSE;

if (sizeof($arr) == 1) {
$fin[] = $arr[0][0];
$fin[] = $arr[0][1];
}
else {
// create an auxiliary array with the elements arr[1..n][]
for ($i = 1; $i < sizeof($arr); ++$i)
$arr_aux[$i-1] = $arr[$i];

// obtain the combinations of the rest of the array
$rest_aux = rest ($arr_aux);

// make the combination with the first elements
for ($i = 0; $i < 2; ++$i)
  for ($j = 0; $j < sizeof($rest_aux); ++$j)
    $fin[] = $arr[0][$i].$rest_aux[$j];

}

return $fin;
}

////////////

It converts $array[1]="Rr" to $array[1][0]="R" and $array[1][1=="r". Or if there are more letters a bigger array will be made.

The function is called by:
/////////
$mommy = rest($t);
reset ($mommy);
while (list($k, $v) = each ($mommy)) {
// echo "($k) - $v<br>";
$letters = explode (":", chunk_split($v, 1, ':'));
for ($i = 0; $i <= (count($letters) - 1); $i++){
$mom[$curmom][$i] .= $letters[$i];
}

$curmom++;
}
//////////

amcgrath

OK, unless I'm wrong, the following shortened function should work for you:

<?
$orig_array = array("Peggy", "Mary", "Joan");

$new_array = rest($orig_array)
function rest($orig_array) {
while(list($ak,$val) = each($orig_array)) {
for ($ltr = 0; $ltr < strlen($val); $ltr++) {
echo"<li>" . $ltr . "...." . strlen($val) ;
if ($ltr > 10) break;

    $new_array[$ak][$ltr] = $val[$ltr];
}

}
return $new_array);
?>

This will give you the following array:

Array (
[0] =>
Array (
[0] => P
[1] => e
[2] => g
[3] => g
[4] => y )
[1] =>
Array (
[0] => M
[1] => a
[2] => r
[3] => y )
[2] =>
Array (
[0] => J
[1] => o
[2] => a
[3] => n )
)

I think that's what your asking for. In my cae, I need to only call the function once, where you arerecursively calling it within itself, the most likely sorce of your timeout. The oinly other thing I'd suggest in regard to your code is to combine the if statements at the beginnning to one, it is possible that an empty array could be read by the else portion of the second conditional block. Let me know if this works, I'd be interested to find a solution.

amcgrath

Take this out, I had a typo and couldnt figure out what it was, so htis is irrelevant:

echo"
" . $ltr . "...." . strlen($val) ;
if ($ltr > 10) break;