'How to fix " Uncaught TypeError: Argument 1 passed to JpGraphException::defaultHandler() " problem in php 7.1.3 and jpgraph 4.2.6?

I'm working on a graph with a Satisfaction form with a database with jpgraph and I've encountered some issues with an handler error.

This is my program:

<?php
    require_once("./src/jpgraph.php");
    require_once("./src/jpgraph_pie.php");
    require_once("./src/jpgraph_pie3d.php");

    $db="questionnaire";
    try
    {
    $bdd=new PDO('mysql:host=localhost;dbname='.$db,'root','');
    }
    catch(Exception $exception)
    {
    die('Erreur :'.$exception->getMessage());
    }
    //var
    $req=$bdd->prepare('SELECT Adaptation1 FROM s3');
    // on execute la requete avec le contenu saisi 'user'

    $req->execute();    
    $valpour = 100;
    $comptage=array(
    "Vide"=>0,
    "Satisfaisante"=>0,
    "Inadaptee"=>0,
    "Incomplete"=>0);   
    /*$vide = cal_pour($comptage["Vide"],$comptage,$valpour);
    $Satisfaisante = cal_pour($comptage["Satisfaisante"],$comptage,$valpour);
    $Inadaptee = cal_pour($comptage["Inadaptee"],$comptage,$valpour);
    $Incomplete = cal_pour($comptage["Incomplete"],$comptage,$valpour);*/
    while ($donnees=$req->fetch(PDO::FETCH_ASSOC))
       {
        foreach ($donnees as $indice=>$valeur){
        echo $valeur."<br/>";
        if ($valeur=="") $comptage["Vide"]++;
        else    $comptage[$valeur]++;
        }
    }

    /*function cal_pour($nombre,$total,$pourcentage)
    { 
     $resultat = ($nombre/$total) * $pourcentage;
    return round($resultat); // Arrondi la valeur
    } */

    $data = array($comptage["Vide"],$comptage["Satisfaisante"],$comptage["Inadaptee"],$comptage["Incomplete"]);
    //print_r($data);
    $graph = new PieGraph(400,300);
    $theme_class= new VividTheme;
    $graph->SetTheme($theme_class);

    $graph->title->Set("Résultat Question PPN");

    $p1 = new PiePlot3D($data);
    $graph = Add($p1);
    $p1->ShowBorder();
    $p1->SetColor("green");
    $p1->ExplodeSlice(1);
    $graph->Stroke();
?>

This is the error I've got:

Fatal error: Uncaught TypeError: Argument 1 passed to JpGraphException::defaultHandler() must be an instance of Exception, instance of Error given in C:\Users\Stric\Documents\projet-tut\projet-tut\src\jpgraph_errhandler.inc.php:158 Stack trace: #0 [internal function]: JpGraphException::defaultHandler(Object(Error)) #1 {main} thrown in C:\Users\Stric\Documents\projet-tut\projet-tut\src\jpgraph_errhandler.inc.php on line 158

here is the respective line 158:

 static public function defaultHandler(Exception $exception) {
        global $__jpg_OldHandler;
        if( $exception instanceof JpGraphException ) {
            $exception->Stroke();
        }
        else {
            // Restore old handler
            if( $__jpg_OldHandler !== NULL ) {
                set_exception_handler($__jpg_OldHandler);
            }
            throw $exception;
        }
    }
}
phphtmlmysqljpgraph


Solution 1:[1]

Simply change $graph = Add($p1); to $graph->Add($p1); and your graph will work.

$p1 = new PiePlot3D($data);
$graph->Add($p1);  // this is where the change is
$p1->ShowBorder();
$p1->SetColor("green");
$p1->ExplodeSlice(1);
$graph->Stroke();

Solution 2:[2]

This is because you have not defined the image storage directory. Make sure the defined directory actually exists.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Dave
Solution 2 Dharman

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