| Re: Filling an array with random input doesn't quite work [message #185306 is a reply to message #185304] |
Mon, 17 March 2014 13:32   |
Thomas 'PointedEars'
Messages: 701
Registered: October 2010
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Senior Member |
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Gabe wrote:
^^^^
Please fix.
> On 2014-03-17 02:16:24 +0000, Denis McMahon said:
>>> 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
>
> Thank you for pointing that out, Dennis.
>
> My code can be trivially modified to do this:
>
>
> $arr = array_fill(0, 40, 'http://mroldies.net/audio/19%u/%u-%03u.mp3');
> array_walk($arr, function(&$v, $k) { $yr = rand(60, 69); $v =
> sprintf($v, $yr, $yr, rand(1, 100)); });
>
>
> Will yield the following array which I have cut short to reduce noise:
>
> print_r($arr);
> Array
> (
> [0] => http://mroldies.net/audio/1966/66-007.mp3
> [1] => http://mroldies.net/audio/1967/67-021.mp3
> [2] => http://mroldies.net/audio/1962/62-016.mp3
> […]
> )
Which *still* is _not_ what was asked for, which is (for whatever reason)
keys from _1_ to _40_ inclusive.
It is also less than optimal to store the repeating prefix in the array, but
you might only have gotten the idea that this was wanted from the precursor.
> Each person prefers their own solution and I am no different. I prefer
> mine because I find it readable whilst only requiring two lines, of
> course you could add a few more line breaks in if preferable. […]
You are missing the point.
PointedEars
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