Adding 52 0's at the end of each array

Question

is there a better way of doing this ? i need 52 0's at the end of each array I already tryd to make a array and implode it but then it behaves like a string.

for($i = 1; $i <= 52; $i++)
    {       
        array_push($totaal["week".$i], 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ,0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);

    }

This looks like a code smell. I can't say for sure, as I don't know much about the context of this code, but you're going to end up with a very large data structure that is mostly empty. You may benefit from spending a little time thinking if there's an alternative way to achieve your goals. — Khior, Jan 16 '14 at 16:36

score 5 · Accepted Answer · answered Jan 16 '14 at 15:41

5

$zeros_array = array();
for($i = 1; $i <= 52; $i++)           
   array_push($zeros_array, 0);

for($i = 1; $i <= 52; $i++)       
   $totaal["week".$i] = array_merge($totaal["week".$i], $zeros_array);

answered Jan 16 '14 at 15:41

zavg

10,351
4
44
67

5

Or even better: `$zeros_array = array_fill(0, 52, 0);` – jszobody Jan 16 '14 at 15:43
Thanks mate, dindt know it was that simple. I will answer this asap – Julez Jan 16 '14 at 15:43
Is there also a function that you can limit youre array ? for example array keys 0, 52 – Julez Jan 16 '14 at 15:45
What do you mean by limiting? – zavg Jan 16 '14 at 15:46
now i am putting 52 0's at the end of each array. my last array will have 109 keys, i want to limit it to 52 keys – Julez Jan 16 '14 at 15:49
@Julez look at `array_pad` to add zeros, and limit the total – jszobody Jan 16 '14 at 15:50
`array_pad` can help you, also look http://stackoverflow.com/questions/7985416/php-how-to-truncate-an-array, here are various techniques to truncate array in PHP – zavg Jan 16 '14 at 15:52

score 1 · Answer 2 · answered Jan 16 '14 at 15:44

1

Try putting the zeroes into their own array and then merge it with each in turn. This should be more efficient.

$zeroes = array_fill(0, 52, 0);
for($i = 1; $i <= 52; $i++)
{       
    $totaal["week".$i] = array_merge($totaal["week".$i], $zeroes);
}

answered Jan 16 '14 at 15:44

Khior

1,244
1
10
20

`array_merge` function does not modifies original array, but returns the new one. – zavg Jan 16 '14 at 15:45

Adding 52 0's at the end of each array

2 Answers2