adapted to your database ... for errors and more information .. let me know
<?
# Simple function 2 create an indentation according to the level/depth of
the tree node
function PrintNode ( $level , $text) { # função para imprimir um nó e fazer
o indentamento
if ( $level == 0 ) {
return "$text<br>";
}
echo "<img src=\"images/spacer.jpg\" width=\"". 5 * $level . "%\"
height=\"20\">$text<br>";
}
# Main function, to be called recursively
function Parse_Tree ( $level=0, $parent=0 ) {
$db = mysql_connect("localhost", "root", "password");
mysql_select_db("mydb",$db);
$sql = "SELECT * FROM table WHERE parent_id=$parent" ;
$result = mysql_query($sql,$db);
if ($result == false) die("failed");
if ( mysql_num_rows($result) == 0 ) return 0 ;
while ($fields = mysql_fetch_row($result)) {
Print_Node( $level, "<". $fields[0] . " >" . "<". $fields[1] .
">" . "<".
$fields[2] . ">");
Parse_Tree ( $level + 1 , $fields[0] ) ; # Check if the
current node as
childs and so on, recursively
}
return 0;
}
?>
-----Mensagem original-----
De: Smita Manohar [mailto:[EMAIL PROTECTED]]
Enviada: terça-feira, 27 de Agosto de 2002 9:33
Para: [EMAIL PROTECTED]
Assunto: [PHP-DB] how to display tree structure from database???
hiii
im using php with mysql. i have one table for which i want to display tree
structure.
for eg. table is like this...
person_id name parent_id
1 shyam 0
2 rohit 1
3 nikita 1
4 ram 0
5 ankit 4
6 jui 5
7 vicky 5
8 rekha 0
9 jay 6
10 kirti 8
i want help for writing query to display all topnodes, parent, their
childern and grand children
thnx and regards,
smita
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