PHP array help

grahamor

Hi,

I have a number of radio buttons that post over values like option_41_200, where 41 is the account_id and 200 is the payment_id.

Multiple payments for one account can be posted over at one time.

I need to store the account_id and then a list of the payment_id's for processing later, so, something like

$account_payments = array('41','201,202,203,204')

I am having difficulty storing the items in the way i have outlined above. I just need to store one instance of the account_id and then concatenate all the payment_id's.

$account_id = 0;
$invoice_list = '';
$collection = array();
$i = 0;

foreach($_POST as $key=>$value)
    	{
    		if(strpos($key, "option_")!==FALSE)
    		{
    			$value = explode('_',$key);
    			$account_id = $value[2];
    			
    			if($account_id == $value[2])
    			{
	    			$account_id = $value[2];

	    			$collection[$i][0] =  $value[2];
	    			
	    			$invoice_list .= $value[3] . ',';
	    			$collection[$i][1] = $invoice_list;
    			}
    			
    			$i++;
    		}
    	}

THis code is outputting the following which while quite close to what i want is incorrect

Array
(
    [0] => Array
        (
            [0] => 41
            [1] => 361,
        )

    [1] => Array
        (
            [0] => 42
            [1] => 361,21,
        )

    [2] => Array
        (
            [0] => 42
            [1] => 361,21,55,
        )

    [3] => Array
        (
            [0] => 42
            [1] => 361,21,55,89,
        )

)

Does anyone have any ideas on how i can get the desired output ?

Thanks

adm

If you use the account id as a key in a new array you could
then use array_key_exists() to append to that array item.

Not sure how this works in your code:
[PHP]
$value = explode('_',$key);
$account_id = $value[2];
[/PHP]

should it not be $account_id = $value[1]; ?


anyway heres a possible solution

[PHP]
$account_id = 0;
$invoice_list = '';
$collection = array();

//$_POST = array('option_41_100'=>'','option_40_200'=>'','option_41_250'=>'','option_43_300'=>'');


foreach($_POST as $key=>$val)
{
if(strpos($key, "option_")!==FALSE)
{
$value = explode('_',$key);
if (array_key_exists($value[1], $collection)) {
$collection[$value[1]] .= $value[2] . ',';
} else{
$collection[$value[1]] = $value[2] . ',';
}
}
}
// To get $account_payments = array('41','201,202,203,204')
$account_payments = array();
foreach($collection as $key => $val){
$account_payments[] = array($key , $val);
}

//print_r($account_payments);
[/PHP]

grahamor

Thanks alot adm, works perfect