How to check if the function call is first or not in recursive functio

[PHPycho]

Suppose i have following recursive function(dummy):
[PHP]function someRecursiceFunc($id){
if(/*check_if_call_is_first*/){
//want to do some operations here with the $id
}
$sql = "SELECT id, parent_id, title FROM some_table WHERE id = ".(int)$id;
$db_result = mysql_query($sql);
while($row = mysql_fetch_array($db_result)){
someRecursiveFunc($row['parent_id']);
}
}[/PHP]

i tried with the static $count = 0 & incremented in while() loop
but this caused problem in function call inside loop(as static variable preserves the value)
For example:
[PHP]foreach($datas as $data){
someRecursiveFunc($data['id']);//value of $count went increasing
}[/PHP]

is there any techinque so that i can check for first call?

[coopster]

static [php.net] looks like an obvious solution to your issue. Perhaps check it's value to see if the static variable has changed from zero and if so, don't do your initialization processing.

[Psychopsia]

Hello!
For my coding I use:

function someRecursive()
{
static $first;

if (!isset($first))
{
//code
$first = 1;
}
// more code
}

Hope this helps :)