This example demonstrates the effects of different bar gaps configured using BarLayer.setBarGap.

[File: phpdemo/gapbar.php".]

<?php require_once("../lib/phpchartdir.php"); $bargap = $HTTP_GET_VARS["img"] * 0.25 - 0.25; #The data for the bar chart $data = array(100, 125, 245, 147, 67); #The labels for the bar chart $labels = array("Mon", "Tue", "Wed", "Thu", "Fri"); #Create a XYChart object of size 150 x 150 pixels $c = new XYChart(150, 150); #Set the plotarea at (27, 20) and of size 120 x 100 pixels $c->setPlotArea(27, 20, 120, 100); #Set the labels on the x axis $c->xAxis->setLabels($labels); if ($bargap >= 0) { #Add a title to display to bar gap using 8 pts Arial font $c->addTitle(" Bar Gap = $bargap", "arial.ttf", 8); } else { #Use negative value to mean TouchBar $c->addTitle(" Bar Gap = TouchBar", "arial.ttf", 8); $bargap = TouchBar; } #Add a bar chart layer using the given data and set the bar gap $barLayerObj = $c->addBarLayer($data); $barLayerObj->setBarGap($bargap); #output the chart header("Content-type: image/png"); print($c->makeChart2(PNG)); ?>