What is the purpose of using JPGraph in PHP and what are the common challenges faced while using it?

The purpose of using JPGraph in PHP is to create dynamic, interactive graphs and charts to visually represent data. Common challenges faced while using JPGraph include setting up the library correctly, configuring the graph properties, and handling data formatting for the graph.

// Example PHP code snippet using JPGraph to create a simple bar graph

// Include the JPGraph library
require_once ('jpgraph/jpgraph.php');
require_once ('jpgraph/jpgraph_bar.php');

// Create a new graph
$graph = new Graph(400,300);
$graph->SetScale("textlin");

// Create a bar plot
$barplot = new BarPlot([10,20,30,40,50]);

// Add the bar plot to the graph
$graph->Add($barplot);

// Display the graph
$graph->Stroke();