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[ 3 posts ] |
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HarryHirsch
New pChart user
Joined: Tue Dec 06, 2011 8:08 pm
Posts: 2
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 what's wrong hi i am trying to display some values from mysql database. I use this code: Code: <?php
/* Include the pData class */
include("class/pData.class.php");
/* Create the pData object */
$MyData = new pData();
/* Connect to the MySQL database */
$db = mysql_connect("localhost", "webxxx", "password");
mysql_select_db("usr_xxx_6",$db);
/* Build the query that will returns the data to graph */
$Requete = "SELECT * FROM `messwerte`";
$Result = mysql_query($Requete,$db);
while($row = mysql_fetch_array($Result))
{
/* Get the data from the query result */
$hoehe = $row["hoehe"];
$tempin = $row["tempin"];
$tempout = $row["tempout"];
/* Save the data in the pData array */
$myData->addPoints($hoehe,"hoehe");
$myData->addPoints($tempin,"tempin");
$myData->addPoints($tempout,"tempin");
}
/* Build the query that will returns the data to graph */
$Requete = "SELECT * FROM `messwerte`";
$Result = mysql_query($Requete,$db);
$hoehe=""; $tempin=""; $tempout="";
while($row = mysql_fetch_array($Result))
{
/* Push the results of the query in an array */
$hoehe[] = $row["hoehe"];
$tempin[] = $row["tempin"];
$tempout[] = $row["tempout"];
}
/* Save the data in the pData array */
$myData->addPoints($hoehe,"hoehe");
$myData->addPoints($tempin,"tempin");
$myData->addPoints($tempout,"tempout");
/* Put the timestamp column on the abscissa axis */
$myData->setAbscissa("hoehe");
/* Associate the "Humidity" data serie to the second axis */
$myData->setSerieOnAxis("tempout", 1);
/* Name this axis "Time" */
$myData->setXAxisName("hoehe");
$myData->setAxisUnit(0,"m");
/* Specify that this axis will display time values
$myData->setXAxisDisplay(AXIS_FORMAT_TIME,"H:i"); */
/* First Y axis will be dedicated to the temperatures */
$myData->setAxisName(0,"tempin");
$myData->setAxisUnit(0,"°C");
/* Second Y axis will be dedicated to humidity */
$myData->setAxisName(1,"tempout");
$myData->setAxisUnit(0,"%");
?> Can anyone help me, please?
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| Tue Dec 06, 2011 8:15 pm |
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jean-damien
Site Admin
Joined: Thu Dec 02, 2010 2:31 pm
Posts: 409
Location: France
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Re: what's wrong Aloha,
You're creating a pData object called $MyData and then adding points to another object called $myData.
It's just an upercase issue ;o)
Kind regards,
JD.
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| Tue Dec 06, 2011 8:20 pm |
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HarryHirsch
New pChart user
Joined: Tue Dec 06, 2011 8:08 pm
Posts: 2
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Re: what's wrong thanks for the quick answer, now my code is: Code: <?php
/* Include the pData class */
include("class/pData.class.php");
/* Create the pData object */
$MyData = new pData();
/* Connect to the MySQL database */
$db = mysql_connect("localhost", "webXXX", "password");
mysql_select_db("usr_webxxx_6",$db);
/* Build the query that will returns the data to graph */
$Requete = "SELECT * FROM `messwerte`";
$Result = mysql_query($Requete,$db);
while($row = mysql_fetch_array($Result))
{
/* Get the data from the query result */
$hoehe = $row["hoehe"];
$tempin = $row["tempin"];
$tempout = $row["tempout"];
/* Save the data in the pData array */
$myData->addPoints($hoehe,"hoehe");
$myData->addPoints($tempin,"tempin");
$myData->addPoints($tempout,"tempin");
}
/* Put the timestamp column on the abscissa axis */
$myData->setAbscissa("hoehe");
/* Associate the "Humidity" data serie to the second axis */
$myData->setSerieOnAxis("tempout", 1);
/* Name this axis "Time" */
$myData->setXAxisName("hoehe");
$myData->setAxisUnit(0,"m");
/* Specify that this axis will display time values
$myData->setXAxisDisplay(AXIS_FORMAT_TIME,"H:i"); */
/* First Y axis will be dedicated to the temperatures */
$myData->setAxisName(0,"tempin");
$myData->setAxisUnit(0,"°C");
/* Second Y axis will be dedicated to humidity */
$myData->setAxisName(1,"tempout");
$myData->setAxisUnit(0,"%");
?>
Fatal error: Call to a member function addPoints() on a non-object in /var/www/webxxx/html/pChart/test.php on line 22perhaps you can post a working code, please? my php is not good.
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| Tue Dec 06, 2011 8:41 pm |
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