Code to achieve line chart effect under PHP_PHP tutorial

Class ImageReport{
var $X;//Picture size X-axis
var $Y;//Picture size Y-axis
var $R;//Back color R value
var $G;//...G.
var $B;//...B.
var $TRANSPARENT;//Whether it is transparent 1 or 0
var $IMAGE;// Image object
//-------------------
var $ARRAYSPLIT;//Specify the symbol used to separate values ​​
var $ITEMARRAY; //Value
var $REPORTTYPE;//Chart type, 1 is vertical column, 2 is horizontal column, 3 is polyline
var $BORDER;//Distance
//------ -------------
var $FONTSIZE;//Font size
var $FONTCOLOR;//Font color
//--------Parameter settings Function
function setImage($SizeX,$SizeY,$R,$G,$B,$Transparent){
$this->X=$SizeX;
$this->Y=$ SizeY;
$this->R=$R;
$this->G=$G;
$this->B=$B;
$this->TRANSPARENT =$Transparent;
}
function setItem($ArraySplit,$ItemArray,$ReportType,$Border){
$this->ARRAYSPLIT=$ArraySplit; $ItemArray;
$this->REPORTTYPE=$ReportType;
$this->BORDER=$Border; ;FONTSIZE=$FontSize;
}
//----------------Body
function PrintReport(){
Header( "Content-type: image/gif");
//Create canvas size
$this->IMAGE=ImageCreate($this->X,$this->Y);
//Set canvas background Color
$background=ImageColorAllocate($this->IMAGE,$this->R,$this->G,$this->B);
if($this->TRANSPARENT= ="1"){
//Background transparent
Imagecolortransparent($this->IMAGE,$background);
}else{
//If you don’t want transparency, you can fill in the background color
ImageFilledRectangle($this->IMAGE,0,0,$this->X,$this->Y,$background);
}
//Parameter font size and color
$this->FONTCOLOR=ImageColorAllocate($this->IMAGE,255-$this->R,255-$this->G,255-$this->B);
Switch ($ this->REPORTTYPE){
case "0":
break;
case "1":
$this->imageColumnS();
break;
case " 2":
$this->imageColumnH();
break;
case "3":
$this->imageLine();
break;
}
$this->printXY(); function printXY(){
//Draw XY coordinate axis*/
$color=ImageColorAllocate($this->IMAGE,255-$this->R,255-$this->G,255 -$this->B);
$xx=$this->X/10;
$yy=$this->Y-$this->Y/10;
ImageLine ($this->IMAGE,$this->BORDER,$this->BORDER,$this->BORDER,$this->Y-$this->BORDER,$color);//X Axis
ImageLine($this->IMAGE,$this->BORDER,$this->Y-$this->BORDER,$this->X-$this->BORDER,$this ->Y-$this->BORDER,$color);//y-axis
//scale on Y-axis
$rulerY=$this->Y-$this->BORDER;
while($rulerY>$this->BORDER*2){
$rulerY=$rulerY-$this->BORDER;
ImageLine($this->IMAGE,$this-> BORDER,$rulerY,$this->BORDER-2,$rulerY,$color);
}
//Scale on the X-axis
$rulerX=$rulerX+$this->BORDER;
while($rulerX<($this->X-$this->BORDER*2)){
$rulerX=$rulerX+$this->BORDER; ->IMAGE,$this->BORDER,10,$this->BORDER+10,10,$color);
ImageLine($this->IMAGE,$rulerX,$this->Y -$this->BORDER,$rulerX,$this->Y-$this->BORDER+2,$color);
}
}

//--- -----------Vertical Column Chart
function imageColumnS(){
$item_array=Split($this->ARRAYSPLIT,$this->ITEMARRAY);
$ num=Count($item_array);
$item_max=0; $i]);
} 
$xx=$this->BORDER*2;  
//画柱形图  
for ($i=0;$i<$num;$i++){ 
srand((double)microtime()*1000000); 
if($this->R!=255 && $this->G!=255 && $this->B!=255){  
$R=Rand($this->R,200);  
$G=Rand($this->G,200);  
$B=Rand($this->B,200);  
}else{  
$R=Rand(50,200);  
$G=Rand(50,200);  
$B=Rand(50,200);  
}  
$color=ImageColorAllocate($this->IMAGE,$R,$G,$B);  
//柱形高度  
$height=($this->Y-$this->BORDER)-($this->Y-$this->BORDER*2)*($item_array[$i]/$item_max);  
ImageFilledRectangle($this->IMAGE,$xx,$height,$xx+$this->BORDER,$this->Y-$this->BORDER,$color);  
ImageString($this->IMAGE,$this->FONTSIZE,$xx,$height-$this->BORDER,$item_array[$i],$this->FONTCOLOR);  
//用于间隔  
$xx=$xx+$this->BORDER*2;  
}  
}  

//-----------横柱形图  
function imageColumnH(){  
$item_array=Split($this->ARRAYSPLIT,$this->ITEMARRAY);  
$num=Count($item_array);  
$item_max=0;  
for ($i=0;$i<$num;$i++){ 
$item_max=Max($item_max,$item_array[$i]); 
} 
$yy=$this->Y-$this->BORDER*2;  
//画柱形图  
for ($i=0;$i<$num;$i++){ 
srand((double)microtime()*1000000); 
if($this->R!=255 && $this->G!=255 && $this->B!=255){  
$R=Rand($this->R,200);  
$G=Rand($this->G,200);  
$B=Rand($this->B,200);  
}else{  
$R=Rand(50,200);  
$G=Rand(50,200);  
$B=Rand(50,200);  
}  
$color=ImageColorAllocate($this->IMAGE,$R,$G,$B);  
//柱形长度  
$leight=($this->X-$this->BORDER*2)*($item_array[$i]/$item_max);  
ImageFilledRectangle($this->IMAGE,$this->BORDER,$yy-$this->BORDER,$leight,$yy,$color);  
ImageString($this->IMAGE,$this->FONTSIZE,$leight+2,$yy-$this->BORDER,$item_array[$i],$this->FONTCOLOR);  
//用于间隔  
$yy=$yy-$this->BORDER*2;  
}  
}  

//--------------折线图  
function imageLine(){  
$item_array=Split($this->ARRAYSPLIT,$this->ITEMARRAY);  
$num=Count($item_array);  
$item_max=0;  
for ($i=0;$i<$num;$i++){ 
$item_max=Max($item_max,$item_array[$i]); 
} 
//$xx=$this->BORDER;  
//画柱形图  
for ($i=0;$i<$num;$i++){ 
srand((double)microtime()*1000000); 
if($this->R!=255 && $this->G!=255 && $this->B!=255){  
$R=Rand($this->R,200);  
$G=Rand($this->G,200);  
$B=Rand($this->B,200);  
}else{  
$R=Rand(50,200);  
$G=Rand(50,200);  
$B=Rand(50,200);  
}  
$color=ImageColorAllocate($this->IMAGE,$R,$G,$B);  
//柱形高度  
$height_now=($this->Y-$this->BORDER)-($this->Y-$this->BORDER*2)*($item_array[$i]/$item_max);  
if($i!="0"){  
ImageLine($this->IMAGE,$xx,$height_next,$xx+$this->BORDER,$height_now,$color);  
}  
ImageString($this->IMAGE,$this->FONTSIZE,$xx+$this->BORDER,$height_now-$this->BORDER/2,$item_array[$i],$this->FONTCOLOR);  
$height_next=$height_now;  
//用于间隔  
$xx=$xx+$this->BORDER;  
}  
}  

//--------------完成打印图形http://knowsky.com  
function printAll(){  
ImageGIF($this->IMAGE);  
ImageDestroy($this->IMAGE);  
}
//-------------Debugging
function debug(){
echo "X:".$this->X."
Y: ".$this->Y; ".$this->Y; "
echo "
BORDER:".$this->BORDER; ".$this->BORDER; ;
$num=Count($item_array);
echo "
Number of values: ".$num."
Number:";
for ($i=0;$i< ;$num;$i++){
echo "
".$item_array[$i];
}
}
}

$report=new ImageReport;
$report->setImage(600,300,255,255,255,1);//Parameters (length, width, background color R, G, B, whether it is transparent 1 or 0)
$temparray="50,25,100,250,180,200,150,220,200,150,50,25,10 0,250,180,200,150,220,200,150 ";//Values, separated by specified symbols
$report->setItem(',',$temparray,3,20);//Parameters (specified symbols that separate values, numerical variables, style 1 is vertical Column chart 2 is a horizontal bar chart and chart 3 is a line chart, distance)
$report->setFont(1);//Font size 1-10
$report->PrintReport();
/ /$report->debug();//For debugging purposes
?>

http://www.bkjia.com/PHPjc/318343.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/318343.htmlTechArticle?php ClassImageReport{ var$X;//Picture size X-axis var$Y;//Picture size Y-axis var$R;//Back color R value var$G;//...G. var$B;//...B. var$TRANSPARENT;//Whether it is transparent 1 or 0 var$IMAGE;//Picture Object...