Fatal error: Call to undefined function:

[ChUrP]

i'm trying to make a votum. for this a made two files: mysqldb.php and test.php.
mysqldb.php has all the functions for the connection to the sql server and querys.

<?php

	class  mysql_db
	{
		var $linkid = false;
		var $resid = false;
		var $doerror = false;
		var $host = "localhost";
		var $user = "user";
		var $passwd = "passwd";
		var $tables = "votum";
	}

	function connect()
	{
		$temp = @mysql_connect($this->host, $this->user, $this->passwd);
		if(!$temp)
		{
			$this->echoerror();
			return false;
		}
		$this->linkid = temp;
		$temp = @mysql_select_db($this->tables, $temp);
		if(!$temp)
		{
			$this->echoerror();
			return false;
		}
		return $this->linkid;
	}

	function query($sql)
	{
		if(!$this->linkid)
		{
			if($this->doerror)
			{
				echo("<b>Nicht verbunden.</b><br>");
				return false;
			}
		}
		if($this->resid)
			@mysql_free_result($this->resid);
		$result = mysql_query($sql, $this->linkid);
		if(!$result)
			$this->echoerror();
		$this->resid = $result;
		return $result;
	}

	function echoerror()
	{
		if(!$this->doerror)
			return;
		if(!mysql_errno())
			return;
		echo("<font color=red><b>" . mysql_errno());
		echo(": " . mysql_error() . "</b></font><br>");
	}

	function data()
	{
		if(!$this->linkid)
		{
			if($this->doerror)
			{
				echo("<b>Nicht verbunden</b>");
				return false;
			}
		}
		if(!$this->resid)
		{
			if($this->doerror)
			{
				echo("<b>Keine Abfrage</b>");
				return false;
			}
		}
		$result = mysql_array($this->resid, MYSQL_BOTH);
		$this->echoerror();
		return $result;
	}

	function echoquery($sql)
	{
		$this->query($sql);
		echo("<table border=0 cellpadding=3><tr>");
		$index = 0;
		echo("<th>record</th>");
		while($field = mysql_fetch_field($this->resid))
			echo("<th>$field->name</th>");
		echo("</tr>");
		$rec = 0;
		while($row = $this->data())
		{
			$rec++;
			echo("<tr><td>$rec</td>");
			for($i = 0; $i < mysql_num_fields($this->resid); $i++)
				echo("<td>" . htmlentities($row[$i]) . "&nbsp;</td>");
			echo("</tr>\n");
		}
		echo("</table>");
	}

	function set_doerror($boolvalue)
	{
		$this->doerror = $boolvalue;
	}

	function mysql_db()
	{
		$this->connect();
	}

	$db = new mysql_db;
?>

with test.php i'm just testing the function

<?php
	include("mysqldb.php");

	$db->query("SELECT antwort,rot,bruen,blau FROM tbAntwort t1 INNER JOIN tbVotum t2 ON t2.votumid INNER JOIN tbFarbe t3 ON t3.farbnr=t1.antwortnr AND 			t3.besizterid=t2.besizterid WHERE t1.votenid=1");
	while(list($antwort,$rot,$gruen,$blau) = $db->data())
		echo("<span style=color: rgb($rot,$gruen,$blau)><b> $antwort </b></span><br>");
?>

if i start test.php i get this error message
Fatal error: Call to undefined function: query() in f:\apache\htdocs\test.php on line 6

what have i done wrong?

 

[THE REAL TOOLKIT]

w0w,another english user

i only now this function:
mysql_db_query()