Iterating a Multidimensional Array - php

Question

I'm having trouble correctly iterating a multi-dimension array I am trying to retrieve the values for each well..value.
My Issue is I seem to have an array within an array which has an array for each key/pair value, I'm unsure how to loop through these and add the values to the database for each array.
Eg, if I have one form on my page the array return is below and further below that is what is returned with two forms etc
Array
(
[0] => Array
(
[0] => Array
(
[name] => sl_propid
[value] => 21
)
[1] => Array
(
[name] => sl_date
[value] => 04/01/2014
)
[2] => Array
(
[name] => sl_ref
[value] => Form1
)
[3] => Array
(
[name] => sl_nom_id
[value] => 12
)
[4] => Array
(
[name] => sl_desc
[value] => Form1
)
[5] => Array
(
[name] => sl_vat
[value] => 60
)
[6] => Array
(
[name] => sl_net
[value] => 999
)
)
)
My question is how do I iterate through the returned array no matter it's size and pull back each value?
I have tried nesting foreach loops, which did give me results, but only for one key/value pair which leads me to believe I'm doing the looping wrong, I can retrieve the values if I statically access them, which is of course no use normally.
foreach ($result as $array) {
print_r($array);
}
the above foreach returns the above arrays, adding another foreach removes the out "container" array but adding another foreach loop, returns only one key/value pair, which sort makes sense because the first index is an array, too, hope I haven't confused everyone else as much as already have myself D:.
Thank you for reading
Any help appreciated.
EDIT Using the below array walk recursive I get the output
$result = $this->input->post();
function test_print($item, $key)
{
echo "$key holds $item\n";
//$this->SalesLedgerModel->addInvoiceToLedger($key, $key, $key, $key, $key, $key, $key);
}
array_walk_recursive($result, 'test_print');
}
Which is almost what I want but how do I take each individual value and add it to my ModelFunction (to actually input the data to DB)
The function takes 7 parameters but I am unsure how to make sure the right info goes to the correct parameter
$this->SalesLedgerModel->addInvoiceToLedger($propid, $date, $ref, $nomid, $desc, $vat, $net);
My Controller function
function addInvoiceToLedger(){
$this->load->model('SalesLedgerModel');
// $propid = $this->input->post('propid');
// $date = $this->input->post('date');
// $ref = $this->input->post('ref');
// $nomid = $this->input->post('id');
// $desc = $this->input->post('desc');
// $vat = $this->input->post('vat');
// $net = $this->input->post('sl_net');
$results = $this->input->post();
//var_dump($results);
$size1 = sizeof($results)-1;
for($i=0; $i<=$size1; $i++)
{
$size2 = sizeof($results[$i])-1;
for($j=0; $j<=$size2; $j++)
{
$name = $results[$i][$j]['name'];
$value = $results[$i][$j]['value'];
echo $value . "\n" ;
$this->SalesLedgerModel->addInvoiceToLedger($value, $value, $value, $value, $value, $value, $value);
}
}
My Model function
function addInvoiceToLedger($propid, $date, $ref, $nomid, $desc, $vat, $net){
$data = array('sl_prop_id' => $propid, 'sl_date' => $date,
'sl_ref' => $ref, 'sl_nominal_sub' => $nomid, 'sl_invoice_desc' => $desc, 'sl_vat' => $vat, 'sl_amount' => $net);
$this->db->insert('salesledger', $data);
}

Answer 1

You can either write some recursive code to step through the array and call itself again if an element turns into an array, or write a very simple function and call it via array walk recursive which will then let you do whatever you like with the value:
<?php
$sweet = array('a' => 'apple', 'b' => 'banana');
$fruits = array('sweet' => $sweet, 'sour' => 'lemon');
function test_print($item, $key)
{
echo "$key holds $item\n";
}
array_walk_recursive($fruits, 'test_print');
?>
Output:
a holds apple
b holds banana
sour holds lemon

Answer 2

Try this. It'll be much faster. Since 3 foreach loops is much costlier than 2 for loops (for loops are faster than foreach loops) -
$size1 = sizeof($results)-1;
if($size1 > 0)
{
for($i=0; $i<=$size1; $i++)
{
$size2 = sizeof($results[$i])-1;
if($size2 > 0)
{
for($j=0; $j<=$size2; $j++)
{
$name = $results[$i][$j]['name'];
$value = $results[$i][$j]['value'];
$insert = $this->your_model->insert($name, $value);
}
}
}
}

Answer 3

foreach ($result as $array) {
foreach($array as $arr){
foreach($arr as $a){
echo $a[value];
}
}
}