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Re: Filling an array with random input doesn't quite work [message #185294 is a reply to message #185273] Mon, 17 March 2014 02:16 Go to previous messageGo to previous message
Denis McMahon is currently offline  Denis McMahon
Messages: 634
Registered: September 2010
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Senior Member
On Sun, 16 Mar 2014 14:45:42 +0000, Gabriel Dragffy wrote:

> On 12/03/2014 17:18, richard wrote:
>> $x=1;
>> while ($x<40){
>> $yr=range(60,69); shuffle($yr); $ayr[$x]=$yr[$x]; echo
>> $ayr[$x]."<br>";
>> $x++;
>> }
>>
>>
>> I am attempting to load an array based upon the range of numbers 60
>> through 69.
>> The array will have 40 items.
>> This code produces 9 items just fine.
>> The rest of the array is empty.
>> What am I missing?
>>
>>
> I would do it like this:
>
> $arr = array_fill(0, 40, 0);
> array_walk($arr, function(&$v, $k) { $v = rand(60, 69); });
>
> That will provide you with an array containing 40 elements, each a
> random integer between 60 and 69:
>
>
> print_r($arr);
> Array (
> [0] => 60 [1] => 69 [2] => 63 [3] => 63 [4] => 64 [5] => 65 [6] =>
> 68 [7] => 67 [8] => 67 [9] => 67 [10] => 63 [11] => 69 [12] => 65
> [13] => 60 [14] => 68 [15] => 62 [16] => 67 [17] => 65 [18] => 60
> [19] => 65 [20] => 62 [21] => 69 [22] => 69 [23] => 64 [24] => 68
> [25] => 65 [26] => 69 [27] => 66 [28] => 61 [29] => 69 [30] => 61
> [31] => 61 [32] => 68 [33] => 64 [34] => 64 [35] => 63 [36] => 60
> [37] => 63 [38] => 60 [39] => 67
> )

Yes, but what he wants is actually something like:

Array
(
[39] => http://mroldies.net/audio/1966/66-033.mp3
[38] => http://mroldies.net/audio/1964/64-012.mp3
[37] => http://mroldies.net/audio/1963/63-085.mp3
[36] => http://mroldies.net/audio/1960/60-014.mp3
[35] => http://mroldies.net/audio/1960/60-011.mp3
[34] => http://mroldies.net/audio/1964/64-065.mp3
[33] => http://mroldies.net/audio/1961/61-058.mp3
[32] => http://mroldies.net/audio/1960/60-026.mp3
[31] => http://mroldies.net/audio/1964/64-090.mp3
[30] => http://mroldies.net/audio/1961/61-080.mp3
[29] => http://mroldies.net/audio/1966/66-059.mp3
[28] => http://mroldies.net/audio/1963/63-066.mp3
[27] => http://mroldies.net/audio/1965/65-006.mp3
[26] => http://mroldies.net/audio/1966/66-050.mp3
[25] => http://mroldies.net/audio/1969/69-004.mp3
[24] => http://mroldies.net/audio/1963/63-100.mp3
[23] => http://mroldies.net/audio/1961/61-071.mp3
[22] => http://mroldies.net/audio/1969/69-082.mp3
[21] => http://mroldies.net/audio/1962/62-075.mp3
[20] => http://mroldies.net/audio/1969/69-080.mp3
[19] => http://mroldies.net/audio/1963/63-039.mp3
[18] => http://mroldies.net/audio/1963/63-022.mp3
[17] => http://mroldies.net/audio/1967/67-096.mp3
[16] => http://mroldies.net/audio/1961/61-041.mp3
[15] => http://mroldies.net/audio/1960/60-013.mp3
[14] => http://mroldies.net/audio/1969/69-012.mp3
[13] => http://mroldies.net/audio/1967/67-087.mp3
[12] => http://mroldies.net/audio/1961/61-009.mp3
[11] => http://mroldies.net/audio/1967/67-044.mp3
[10] => http://mroldies.net/audio/1960/60-021.mp3
[9] => http://mroldies.net/audio/1965/65-094.mp3
[8] => http://mroldies.net/audio/1961/61-071.mp3
[7] => http://mroldies.net/audio/1967/67-040.mp3
[6] => http://mroldies.net/audio/1967/67-044.mp3
[5] => http://mroldies.net/audio/1967/67-081.mp3
[4] => http://mroldies.net/audio/1962/62-022.mp3
[3] => http://mroldies.net/audio/1966/66-017.mp3
[2] => http://mroldies.net/audio/1965/65-005.mp3
[1] => http://mroldies.net/audio/1963/63-076.mp3
)

(although I suspect that he really wants either indexes 1 .. 40 or 0 ..
39, but it's hard to tell which he wants from his code.

Hence my solution of:

$x=40;
$song=array();
while(--$x)$song[$x]=sprintf("http://mroldies.net/audio/19%d/%d-%03d.mp3",
$y=rand(60,69),$y,rand(1,100));

--
Denis McMahon, denismfmcmahon(at)gmail(dot)com

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