create a list from an array

[jrough]

First of all I don't understand what this code is doing. I will put part of the var dump below. What I expected it to do was have 10 ids generated.

Instead it has about 10 arrays of ids.

Second, what I want to do is turn the ids into a list. Say I only had 10 $ids.
From reading the manual on the list() function I would do something like this in order
to index the ids and create a mapped list.
$i=0;
list($list($ids) = $ids
$i++;
thanks,

function foo($j) {
   $ids = array();
    while (count($ids) < $j) {
    $i=0;
    $id = gen_id();  // assume this function will return you an integer
    if (!in_array($id, $ids)) {

  $ids[] = $id;

var_dump($ids);
}

  }

}

function gen_id(){
  $c=rand (0, getrandmax());
	 echo $c;
	return $c;

}


foo(10);

results:
836025423array(1) { [0]=> int(836025423) } 1057001051array(2) { [0]=> int(836025423) [1]=> int(1057001051) } 1853518720array(3) { [0]=> int(836025423) [1]=> int(1057001051) [2]=> int(1853518720) } 1895027043array(4) { [0]=> int(836025423) [1]=> int(1057001051) [2]=> int(1853518720) [3]=> int(1895027043) } 36424840array(5) { [0]=> int(836025423) [1]=> int(1057001051) [2]=> int(1853518720) [3]=> int(1895027043) [4]=> int(36424840) } 31443683array(6) { [0]=> int(836025423) [1]=> int(1057001051) [2]=> int(1853518720) [3]=> int(1895027043) [4]=> int(36424840) [5]=> int(31443683) } 1383785487array(7) { [0]=> int(836025423) [1]=> int(1057001051) [2]=> int(1853518720) [3]=> int(1895027043) [4]=> int(36424840) [5]=> int(31443683) [6]=> int(1383785487) } 547249641array(8) { [0]=> int(836025423) [1]=> int(1057001051) [2]=> int(1853518720) [3]=> int(1895027043) [4]=> int(36424840) [5]=> int(31443683) [6]=> int(1383785487) [7]=> int(547249641) } 2142797075array(9) { [0]=> int(836025423) [1]=> int(1057001051) [2]=> int(1853518720) [3]=> int(1895027043) [4]=> int(36424840) [5]=> int(31443683) [6]=> int(1383785487) [7]=> int(547249641) [8]=> int(2142797075) } 374229833array(10) { [0]=> int(836025423) [1]=> int(1057001051) [2]=> int(1853518720) [3]=> int(1895027043) [4]=> int(36424840) [5]=> int(31443683) [6]=> int(1383785487) [7]=> int(547249641) [8]=> int(2142797075) [9]=> int(374229833) }

[Derokorian]

It's because your var_dump is in the loop of the function.

function foo($j) { 
   $ids = array(); 
    while (count($ids) < $j) { 
    $i=0; 
    $id = gen_id();  // assume this function will return you an integer 
    if (!in_array($id, $ids)) { 

  $ids[] = $id; 

} 

  } 
    var_dump($ids); 

} 

function gen_id(){ 
  $c=rand (0, getrandmax()); 
     echo $c; 
    return $c; 

} 


foo(10); 

[jrough]

Thanks, that is better. What is the first long number string for? 10933241419.....
An HOw do I go about mapping the array to a list? Do I have to create an object?
or can I use the list() function?

109332141419698042564972952215225784919509774020152637962384134871368769951335698583362336811array(10) { [0]=> int(1093321414) [1]=> int(196980425) [2]=> int(649729522) [3]=> int(152257849) [4]=> int(195097740) [5]=> int(2015263796) [6]=> int(238413487) [7]=> int(1368769951) [8]=> int(335698583) [9]=> int(362336811) }

[bradgrafelman]

jrough;10997428 wrote:

What is the first long number string for?

That'd be the output of the echo statement in your code.

jrough;10997428 wrote:

An HOw do I go about mapping the array to a list?

That would depend upon what a "list" means (or, more accurately, how to represent one).