Dynamic Multi Dimensional Array - php

Question

I have been trying to fureout how to create a dynamic multi dimensional array.
The reason for this is that I want to create a dropdown menu that will be created dynamically from the mysql
Sample database
|id|menu_name|menu_parent_id|
|1 |top menu1| 0 |
|2 |top menu2| 0 |
|3 |top menu3| 0 |
|4 |top menu4| 0 |
|5 |sub menu | 2 |
|6 |sub menu | 2 |
|7 |sub menu | 5 |
|8 |sub menu | 6 |
|9 |top menu | 0 |
I thought of starting from getting the menu with no parent then put it on an array
$parentIDs[0]=0;
$tempParentIDs = array();
$childIDs = array();
$menus = array();
$rows = 0;
$rows=0;
foreach($parentIDs AS $value){
$sql = mysql_query("SELECT * FROM service WHERE service_parent_id=$value");
while($temp = mysql_fetch_array($sql)){
//$tempParentIDs[] = $temp['service_id'];
//check if parent have child
$sql2 = mysql_query("SELECT * FROM service WHERE service_parent_id=$temp[service_id]") or die(mysql_error());
$rows = mysql_num_rows($sql2);
if($rows >= 1){
//This means there is a child
while($temp2 = mysql_fetch_array($sql2)){
$childIDs[] = $temp2['service_id'];
}
$tempParentIDs[$temp['service_id']] = $childIDs;
unset($childIDs);
} else {
//This means there is no child
}
}
}
echo "<pre>";
print_r($tempParentIDs);
echo "</pre>";
but after then I'm stuck.

Answer 1

I think you are looking for this:
$parentIDs[0]=0;
$tempParentIDs = array();
$childIDs = array();
$menus = array();
$rows = 0;
$multiDimensionalArray = NULL; //here I made change - vijay
$rows=0;
foreach($parentIDs AS $value){
$sql = mysql_query("SELECT * FROM service WHERE service_parent_id=$value");
while($temp = mysql_fetch_array($sql)){
$tempParentIDs = $temp['service_id']; //here I made change - vijay
//check if parent have child
$sql2 = mysql_query("SELECT * FROM service WHERE service_parent_id=$temp[service_id]") or die(mysql_error());
$rows = mysql_num_rows($sql2);
if($rows >= 1){
//This means there is a child
while($temp2 = mysql_fetch_array($sql2)){
$multiDimensionalArray[$tempParentIDs][] = $temp2['service_id']; //here I made change - vijay
}
// $tempParentIDs[$temp['service_id']] = $childIDs; //here I made change - vijay
// unset($childIDs); //here I made change - vijay
} else {
//This means there is no child
}
}
}
echo "<pre>";
print_r($multiDimensionalArray); //here I made change - vijay
echo "</pre>";

Answer 2

You should store array in php like this way :
This will maybe work for you
$next = 0;
$level = 0;
$sql = mysql_query("SELECT * FROM service WHERE service_parent_id=$next");
$temps = array();
while($temp = mysql_fetch_array($sql))
{
$temps[] = $temp;
}
foreach($temps as $temp)
{
echo $temp['service_id'];
}