openflashchart 2.0 simple case php version_PHP tutorial-PHP Tutorial-php.cn

openflashchart 2.0 simple case php version_PHP tutorial

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Release： 2016-07-21 15:18:50

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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; 
} 