Array Help

[awebbdesigner]

Hi...

 

I have an array '$names' with the following...

 

Array

(

    [un] => a

    [pa] => v

)

 

However this array gets used in a for loop and I need to pull the value out using a number i.e.

$myname = $names[1] // should print out v

 

When I try this it fails, any tips would be helpful. Or if there is a function for converting array keys into numbers?

[JasonLewis]

You can do a few things, use array_values to return an indexed array with your values, or use a foreach loop instead.

[bh]

Hi,

 

you cant index your array with a numeric becouse that is an accociative array.

create an enumerative array from your ass.arr example like this (with foreach or use @ProjectFear suggestion [array_values()] which is more beautiful i think):

 

$new_array();

foreach ($names as $name)
{
  $new_array[] = $name;
}

 

and after that you can index with a number your enumerative $new_array that holds your $names array content.

 

edit:

yeah, i was a bit mindful with the code, sry:

 

$new_array();

foreach ($names as $k => $name)
{
  $new_array[] = $name;
}

[Haraldur1234]

That coding is wrong, if you want to array, do like this!

 

<?
$string = array ("A", "V");
echo $string[0]
echo $string[1]
?>

 

And the result from that will be

 

A

V

[JasonLewis]

That coding is wrong, if you want to array, do like this!

 

<?
$string = array ("A", "V");
echo $string[0]
echo $string[1]
?>

 

And the result from that will be

 

A

V

 

No, the result from that (assuming short tags are enabled), will be a parse error. While what you have provided is close enough to what can also be done, it depends on how the OP is retrieving the said array.

[Cagecrawler]

Example shows three ways to loop through an array, assuming the need for a numeric key is not essential.  If you need to pick out a specific key/value pair, you can get a list of keys using array_keys().

$names = array('un' => 'a', 'pa' => 'v');

// Loop using foreach.
foreach($names as $k => $v)
{
    var_dump($v);
}

//Loop using while and list.
while(list($key, $val) = each($names))
{
    var_dump($val);
}

// Loop using while.
while(current($names) !== FALSE)
{
    var_dump(current($names));
    next($names);
}