fritzb

@AbraCadaver: Works perfectly, thank you! Sure, there are better ways. Are you referring to nested models? @requinix: didn't know. I have to digg deeper in both: php and xml. Thanks you as well.

Hi, I am converting an adjacency table to a xml with this code (coming from phpfreaks, thank you Barand!) <?php $data = array( 1 => 0, 2 => 1, 3 => 1, 4 => 2, 5 => 3, 6 => 5 ); echo "<?xml version='1.0' encoding='iso-8859-1'?>\n"; echo "<tree id='0'>\n"; tree(0); echo "</tree>\n"; function tree ($parent, $level=0) { global $data; $children = array_keys($data, $parent); if ($children) foreach ($children as $kid) { $indent = str_repeat("\t", $level+1); echo "$indent<item text='$kid' id='$kid'>\n"; tree($kid, $level+1); echo "$indent</item>\n"; } } ?> Returning <?xml version='1.0' encoding='iso-8859-1'?> <tree id='0'> <item text='1' id='1'> <item text='2' id='2'> <item text='4' id='4'> </item> </item> <item text='3' id='3'> <item text='5' id='5'> <item text='6' id='6'> </item> </item> </item> </item> </tree> Which is inappropriately formatted for my purpose. I would need: <?xml version='1.0' encoding='iso-8859-1'?> <tree id='0'> <item text='1' id='1'> <item text='2' id='2'> <item text='4' id='4'/> </item> <item text='3' id='3'> <item text='5' id='5'> <item text='6' id='6'/> </item> </item> </item> </tree> All nodes with children should end with </item>, leafs without end with />). I included an else-statement, after the foreach, but that obviously only doubles the leafs. else { $leaf = $parent; $indent = str_repeat("\t", $level+1); echo "$indent<item text='$leaf' id='$leaf'/>\n"; } Including further if-statements, left me with a completely screwed xml. Now I run out of ideas how to check for leafs/children and handle them appropriately. Any help ist appreciated!