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Thread class

Type:	class
Added by:	Mas_Mind
Entered:	07/07/2000
Last modified:	08/12/1999
Rating:	(3 votes)
Views:	5511

This class can print out an array of threads in threaded or flat mode (any mode you want really) This can be usefull for discussion boards where you want both options

<?

                            
 class Thread
 {    var $beginLevel = "<ul>";

                                var $endLevel = "</ul>";

                                var $beginItem = "<li>";

                                var $endItem = "</li>";

                                var $wholeThread;

                                

                                function Thread($code="")

                                {    if(!empty($code))

                                    {    $this->beginLevel = $code[beginLevel];

                                        $this->endLevel = $code[endLevel];

                                        $this->beginItem = $code[beginItem];

                                        $this->endItem = $code[endItem];

                                    }

                                }

                                

                                function sortChilds($threads)

                                {    while(list($var, $value) = each($threads))

                                        $childs[$value[parent]][$value[ID]] = $value;

                                    return $childs;

                                }

                                

                                function convertToThread($threads, $thread)

                                {    $this->wholeThread .= $this->beginLevel;

                                    while(list($parent, $value) = each($thread))

                                    {    $this->wholeThread .= $this->beginItem . $value[content] . $this->endItem;

                                        if($threads[$parent] && !$value[closed])

                                            $this->convertToThread($threads, $threads[$parent]);

                                    }

                                    $this->wholeThread .= $this->endLevel;

                                    return $this->wholeThread;

                                }

                            }

                            
 ?>

Usage Example

//The array with data to be printed, this has to contain an ID, a parent and a content item...closed is optional (if true, the thread will be printed collapsed)


                            

                            $threads = array(array("ID" => 1, "content" => "item1", "parent" => 0, "closed" => false),


                            array("ID" => 2, "content" => "subitem1", "parent" => 1, "closed" => false),

                            array("ID" => 3, "content" => "subsubitem1", "parent" => 1, "closed" => false),

                            array("ID" => 4, "content" => "item2", "parent" => 0, "closed" => false),

                            array("ID" => 5, "content" => "subitem2", "parent" => 4, "closed" => false),

                            array("ID" => 6, "content" => "subsubitem2", "parent" => 5, "closed" => false));

                            

                            //The parameter array with the 'beginLevel', 'endLevel', 'beginItem' and 'endItem' hashitems; This will determine how the threads will be printed


                            

                            //just flat beneath eachother

                            $flat = array("beginLevel" => "", "endLevel" => "", "beginItem" => "", "endItem" => "<br>");


                            

                            //weird, just an example to show what can be done :)

                            $flat2 = array("beginLevel" => "<TABLE BORDER=1><TR><td>", "endLevel" => "</td></tr></table>", "beginItem" => "", "endItem" => "");


                            

                            $myThread = new Thread(); //With no parameter the threads will be threaded

                            //$myThread = new Thread($flat); // This will print it flat

                            //$myThread = new Thread($flat2); //This will print it funky :)

                            $converted = $myThread->sortChilds($threads); //sort threads by parent

                            print $myThread->convertToThread($converted, $converted[0]); //print the threads

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