將mysql結果導入Jpgraph

Question

我第一次使用JPgraph，並試圖將mysql查詢結果導入基於bargradsmallex4.php示例的代碼的數組中。我嘗試了各種語法，但不太熟悉mysql_fetch_array（），並且無法將數據插入到數組中。任何幫助，將不勝感激。查詢已經過測試並生成結果，因此它不是查詢本身。

$sql= mysql_query('SELECT agency,current,sum(current) 
FROM table2 WHERE MATCH(agency) AGAINST("health" IN BOOLEAN MODE) GROUP BY agency '); 


// We need some data 
$datay = array(); 

while($row = mysql_fetch_array($sql)) 

$datay[] = array(
'current' => $row['sum(current)'], 

); 


// Setup the graph. 
$graph = new Graph(400,300);  
$graph->SetScale("textlin"); 
$graph->img->SetMargin(25,15,25,25); 

$graph->title->Set('"GRAD_VER"'); 
$graph->title->SetColor('darkred'); 

// Setup font for axis 
$graph->xaxis->SetFont(FF_FONT1); 
$graph->yaxis->SetFont(FF_FONT1); 

// Create the bar pot 
$bplot = new BarPlot($datay); 
$bplot->SetWidth(0.6); 

// Setup color for gradient fill style 
$bplot->SetFillGradient("navy","lightsteelblue",GRAD_VER); 

// Set color for the frame of each bar 
$bplot->SetColor("navy"); 
$graph->Add($bplot); 

// Finally send the graph to the browser 
$graph->Stroke(); 

Answer 1

我在你的代碼中做了一些修改。

1-設置愛麗絲總和（電流）

2-設置while循環和$ DATAY陣列。

請嘗試一下，希望它會給你需要的輸出。

$sql= mysql_query('SELECT agency,current,sum(current) as sum_of_current FROM table2 WHERE MATCH(agency) AGAINST("health" IN BOOLEAN MODE) GROUP BY agency'); 


// We need some data 
$datay = array(); 

while($row = mysql_fetch_array($sql)) { 
    $datay[] = $row['sum_of_current']; 
} 


// Setup the graph. 
$graph = new Graph(400,300);  
$graph->SetScale("textlin"); 
$graph->img->SetMargin(25,15,25,25); 

$graph->title->Set('"GRAD_VER"'); 
$graph->title->SetColor('darkred'); 

// Setup font for axis 
$graph->xaxis->SetFont(FF_FONT1); 
$graph->yaxis->SetFont(FF_FONT1); 

// Create the bar pot 
$bplot = new BarPlot($datay); 
$bplot->SetWidth(0.6); 

// Setup color for gradient fill style 
$bplot->SetFillGradient("navy","lightsteelblue",GRAD_VER); 

// Set color for the frame of each bar 
$bplot->SetColor("navy"); 
$graph->Add($bplot); 

// Finally send the graph to the browser 
$graph->Stroke();