an example :
my table :
Field,Type,Null,Key,Default,Extra
CATID,int(10) unsigned,,PRI,NULL,auto_increment
PARENT,int(10) unsigned,,,0,
TEXT,varchar(40),,,,
TYPE,set('FILE','POST','FOLDER'),YES,,NULL,
code ( using ADODB ) :
function PrintNode ( $level , $text) { # função para imprimir um nó e fazer
o indentamento
if ( $level == 0 ) {
return "$text<br>";
}
}
function ParseTree( $parent=0, $level=0 )
global $db_type, $db_host, $db_usr, $db_pwd, $db_name ;
$db = NewADOConnection($db_type);
$db->Connect($db_host, $db_usr, $db_pwd, $db_name);
$sql = "SELECT * FROM jm_tree WHERE PARENT=$parent ORDER BY TEXT;";
$rs = $db->Execute($sql);
if ($rs->EOF) {
return 0;
}
else {
while (!$rs->EOF ) {
echo PrintNode($level,'<' . $rs->fields["CATID"] . ' | '
.$rs->fields["TEXT"] . ' | ' . $rs->fields["TYPE"] . '>') ;
ParseTree( $rs->fields["CATID"] , $level + 1 ); # Recursive
call to same
function
$rs->MoveNext();
}
}
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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