openflashchart 2.0 simple case php version_PHP tutorial

1.openflashchart is a relatively practical icon rendering plug-in, and it is open source. The website is http://teethgrinder.co.uk/open-flash-chart/

2. FlashChart class

Copy code The code is as follows:

FlashChart Class Code

class FlashChart
{
private $id;
private $height;
private $width;
private $path;
function __construct($path="",$width=300,$height=500,$id="myChart")
{
global $flash_chart;
$this->id=$id;
$this->height=$height;
$this->width=$width;
$this->path=$path;
if(!$flash_chart)
{
echo '';
echo '';
$flash_chart=true;
}
}

function __destruct()
{
unset($this->id,$this->height,$ this->width,$this->path);
}
function setID($id)
{
$this->id=$id;
}
function setChart($file,$info)
{
$tp=new TemplateData($file);
echo '';
}
}

3, TemplateData class

puts a simple icon The configuration is taken out from the txt text that has been written to load the classes used: for example

Copy the code The code is as follows:

{
"title":
{
"text":"(title)",
"style":"{color:#FF0000;font-size:24px;}"
},
"y_legend":{
"text": "iWebShop",
"style": "{color: #736AFF;font-size:16px;}"
},

"elements":[
{
"type": "line",
"colour": "#736AFF",
"text": "Number of registered users (people) ",
"width": 1,
"dot-style": {
"type":"solid-dot", "colour":"#a44a80", "dot-size": 3 ,
"tip":"#val#人
#x_label#" },
"on-show": {"type": "shrink-in", "cascade":1, " delay":0.5},
"values" : [(numbers)]
}
],

"x_axis":{
"labels": {
" labels":[(dates)]
}
},

"y_axis":{
"steps": (steps),
"max": (max)
}
}

This is the content of the class:

Copy the code The code is as follows:

class TemplateData
{
public $substitution;
private $templateFile;
function __construct($filename)
{
$this-> ;templateFile=@file_get_contents($filename) or die("not find templateFile");
}
function __destruct() {
unset ($this->templateFile,$this->substitution) ;
}
function setTemplateFile($tfile)
{
$this->templateFile=$tfile;
}
function getTemplateFile()
{
return $this->templateFile;
}
function replaceReal($matches)
{
extract($this->substitution, EXTR_OVERWRITE);
return isset($$matches[1 ])?$$matches[1]:$matches[1];
}
function changeInfo($subs)
{
$this->substitution=$subs;
return preg_replace_callback("(((w+)))",array(&$this, 'replaceReal'),$this->getTemplateFile());
}

}

4, calling code

Copy code The code is as follows:

include("flashchart. php");
include("templatedata.php");
$fc=new FlashChart('chart/',"100%",320);
$infos=array(
' numbers'=>"30000,10000,5000,6000000,700",
'dates'=>""String1","String2","String3","String4" ,"String 5"",
'steps'=>600000,
'max'=>6000000
);
$info=array("title"=>'User Registration statistics','numbers'=>$infos['numbers'],'dates'=>$infos['dates'],'steps'=>$infos['steps'],'max'= >$infos['max']);
$fc->setChart("chart/templatechart/user-add.txt",$info);

5, and A function that processes data and converts the queried data set into data for OFC

Copy code The code is as follows:

/**
* @brief ofc data processing
* @params database queries the data set about the x, y axis data
* @note background
*/
/*
public function init_count($rs)
{

$numbers ='';
$dates = '';
$max = 0;
foreach($rs as $row)
{

$numbers .= $row['num'].', ';//y-axis data
$dates .='"'.$row['month'].'",';//x-axis data
if($max<$row['num' ]) $max = $row['num'];
}
$steps=ceil($max/10);
$result= array(
'steps' => $steps ,
'numbers' => strlen($numbers)>1 ? substr($numbers,0,-1):null,
'dates' => strlen($dates)>1 ? substr($dates,0,-1) : null,
'max' => $max+$steps
);
return $result;
}

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