php web applikation virker ikke mere

ehh, synes det ser lidt underligt ud, men måske

global $this;

inde i din funktion som det første.

Den funktion som du viser er en del af en klasse. Du bliver nød til at vise hele din klasse og hvordan du kalder den funktion du viser her.

Jamen, her er så hele klassen. Den er lang, derfor tog jeg bare een funktion som eksempel. Eksemplet kaldes fra den første funktion i klassen.

<?php

/*
* Coding formatted for standard 4-space tabs.
*/
require_once( "Database.class.php" );
require_once( "Question.class.php" );
require_once( "Page.display.php" );
require_once( "config.php" );

class Page {
   
    var $quiz;
    var $pageNum;
    var $db;
    var $questions;
    var $qPerPage;
    var $shuffleQ;
    var $shuffleC;
   
    function Page( $quizID, $pageNum, $userAnswers )
    {
        $this->quiz = $quizID;
        $this->pageNum = $pageNum;
        $this->answers = $userAnswers;
        $this->questions = array( );
       
        $this->db = new Database( CFG_DB_SERVER, CFG_DB_USERNAME, CFG_DB_PASSWORD, CFG_DB_NAME );
       
        if( is_numeric( $this->quiz ) && intval( $this->quiz ) == $this->quiz && $this->quiz > 0 )
        {
            $this->_getQuizConfigs( );
            if( $this->qPerPage == 0 )
            {
                $this->db->doQuery( "SELECT COUNT(*) AS count FROM nq_Questions WHERE quiz=" . $this->quiz );
                $resRow = $this->db->nextAssoc( );
                $this->qPerPage = $resRow['count'];
            }
            $this->_fetchQuestions( );
        }
    }
   
    function display( )
    {
        $this->_generatePage( );
    }
   
    function _fetchQuestions( )
    {
        $query = "SELECT id,q.question AS q, reason " .
                "FROM nq_Questions q, nq_Choices c " .
                "WHERE id=c.question AND quiz=" . $this->quiz . " " .
                "GROUP BY id,q.question,reason HAVING COUNT(c.position) > 1";
               
        if( $this->shuffleQ )
        {
            $numSessionID = preg_replace( "[\D]", "", session_id() );
            $randSeed = substr( $numSessionID, strlen($numSessionID)-6, 3 );
            $randSeed = $randSeed + ( substr( "$this->quiz", strlen( $this->quiz ) - 1 ) * 300 );
            $query = $query . " ORDER BY RAND(" . $randSeed * 10000000 . ")";
        }
        $this->db->doQuery( $query );
    }
   
    function _makeIntroPage( )
    {
        $query = "SELECT name,intro FROM nq_Quizzes WHERE id=" . $this->quiz . " LIMIT 1";
        $this->db->doQuery( $query );
       
        if( !( $quizInfo = $this->db->nextAssoc( ) ) )
        {
            $errText = "The quiz you are trying to access (ID " . $this->quiz . ") doesn't exist!<br><br>" .
                      "<a href=\"" . CFG_QUIZ_URL . "\">Choose a Valid Quiz</a><br>";
            new Error( "NQ-INT-001",$errText, ERR_LEVEL_MINOR, true );
        }
       
        showIntro( $quizInfo['name'], $quizInfo['intro'] );
    }
   
    function _makeSelectionPage( )
    {
        // Uncomment following to show ALL quizzes on selection page
        // (Not just ones that have valid questions)
        //$query = "SELECT id,name FROM Quizzes ORDER BY id ASC";
        $query = "CREATE TEMPORARY TABLE Temp
                  SELECT id AS qid,quiz
                  FROM nq_Questions q, nq_Choices c
                  WHERE id=c.question
                  GROUP BY id,quiz HAVING COUNT(c.position) > 1";
        $this->db->doQuery( $query );
       
        $query = "SELECT id,name
                  FROM nq_Quizzes,Temp
                  WHERE id=quiz
                  GROUP BY id,name";
        $this->db->doQuery( $query );
           
        $quizNames = array( );
        while( $quizName = $this->db->nextAssoc( ) )
            $quizNames[$quizName['id']] = $quizName['name'];
       
        showSelectionPage( $quizNames );
    }
   
    function _generatePage( )
    {
        if( !is_numeric( $this->quiz ) || intval( $this->quiz ) != $this->quiz )
            $this->_makeSelectionPage( );
       
        if( !$this->pageNum && $this->pageNum !== 0 )
        {
            $this->_makeIntroPage( );
            return;
        }
        if( $this->db->resultIsEmpty( ) )
        {
            $errText = "This quiz has no complete questions for you to answer.<br><br>" .
                      "<a href=\"" . CFG_QUIZ_URL . "\">Choose Another Quiz</a><br>";
            new Error( "NQ-GPG-001", $errText, ERR_LEVEL_MINOR, true );
        }
       
        $firstQ = $this->qPerPage * $this->pageNum;        // Calculate position of the first question on this page
       
        // Try to jump to first question of quiz
        // If fails, try to make results
        if( !$this->db->resultJump( $firstQ ) )    // Go to first question on this page:
        {
            while( $temp = $this->db->nextAssoc( ) )
                $this->questions[ $temp['id'] ] = new Question( $temp['id'], $temp['q'], $temp['reason'], $this->shuffleC );
            printResPage( $this->questions );
            //$this->_showResults( );
        }
        else
        {
            for( $i=0; ( $i < $this->qPerPage ) && ( $temp = $this->db->nextAssoc( ) ); $i++ )
                $this->questions[ $temp['id'] ] = new Question( $temp['id'], $temp['q'], $temp['reason'], $this->shuffleC );
            $totalPages = ceil( $this->db->resultNumRows() / $this->qPerPage );
            printQPage( $this->questions, $firstQ+1, $this->pageNum, $totalPages );
        }
    }
   
    function _getQuizConfigs( )
    {
        $this->db->doQuery( "SELECT per_page, shuffle_choices, shuffle_questions FROM nq_Quizzes WHERE id=" . $this->quiz );
        $temp = $this->db->nextAssoc();
        $this->qPerPage = $temp['per_page'];
        $this->shuffleC = $temp['shuffle_choices'];
        $this->shuffleQ = $temp['shuffle_questions'];
    }
}

?>

Jeg rydder lige op.
Jeg fandt ikke ud af at løse problemet kodemæssigt. Fandt et webhotel, der understøtter php4.