problem, recursive function using array_merge()

Recursive function using array_merge():
Here's the problem code:

Code:

function findChildren( $parent ){
$children = array();
$query = "SELECT * FROM atree WHERE parent_id = '$parent'";
$result = mysql_query($query) or die("Query Failed:".$query." Error message:".mysql_error());
$num_of_rows = mysql_num_rows($result);
$children[] = $parent;
echo"test:".$children[0]."<br>";
echo"After push: $children <br>";
if( $num_of_rows > 0 ){
for($i=0;$i<$num_of_rows;$i++){
$get = mysql_fetch_array($result);
echo"this is the child ";
echo $get["id"]."<br>";
array_merge( $children, findChildren( $get["id"] ) );
}
}
echo"Returning the children of $parent :$children <br>";
return $children;
} 

had a problem where, the that prints the $children[0] element prints fine... it prints out what I set it to by doing the $children[] = $parent

When I print just by echoing $children it's nothing.... also, when the merge is done, it's seeing the 2 array's as nothing, and returns nothing....

But Finding all children in a single parent tree mysql table(layout --> 2 fields, id, parent_id)

Author: gilbertsavier
Newbie

Posts: 23
Have thanks: 1 time

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