php下实现折线图效果的代码

  <?php

  Class ImageReport{

  var $X;//图片大小X轴

  var $Y;//图片大小Y轴

  var $R;//背影色R值

  var $G;//...G.

  var $B;//...B.

  var $TRANSPARENT;//是否透明1或0

  var $IMAGE;//图片对像

  //-------------------

  var $ARRAYSPLIT;//指定用于分隔数值的符号

  var $ITEMARRAY;//数值

  var $REPORTTYPE;//图表类型,1为竖柱形2为横柱形3为折线形

  var $BORDER;//距离

  //-------------------

  var $FONTSIZE;//字体大小

  var $FONTCOLOR;//字体颜色

  //--------参数设置函数

  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;

  $this->ITEMARRAY=$ItemArray;

  $this->REPORTTYPE=$ReportType;

  $this->BORDER=$Border;

  }

  function setFont($FontSize){

  $this->FONTSIZE=$FontSize;

  }

  //----------------主体

  function PrintReport(){

  Header( "Content-type: image/gif");

  //建立画布大小

  $this->IMAGE=ImageCreate($this->X,$this->Y);

  //设定画布背景色

  $background=ImageColorAllocate($this->IMAGE,$this->R,$this->G,$this->B);

  if($this->TRANSPARENT=="1"){

  //背影透明

  Imagecolortransparent($this->IMAGE,$background);

  }else{

  //如不要透明时可填充背景色

  ImageFilledRectangle($this->IMAGE,0,0,$this->X,$this->Y,$background);

  }

  //参数字体文小及颜色

  $this->FONTCOLOR=ImageColorAllocate($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();

  $this->printAll();

  }

  //-----------打印XY坐标轴

  function printXY(){

  //画XY坐标轴*/

  $color=ImageColorAllocate($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轴

  ImageLine($this->IMAGE,$this->BORDER,$this->Y-$this->BORDER,$this->X-$this->BORDER,$this->Y-$this->BORDER,$color);//y轴

  //Y轴上刻度

  $rulerY=$this->Y-$this->BORDER;

  while($rulerY>$this->BORDER*2){

  $rulerY=$rulerY-$this->BORDER;

  ImageLine($this->IMAGE,$this->BORDER,$rulerY,$this->BORDER-2,$rulerY,$color);

  }

  //X轴上刻度

  $rulerX=$rulerX+$this->BORDER;

  while($rulerX<($this->X-$this->BORDER*2)){

  $rulerX=$rulerX+$this->BORDER;

  //ImageLine($this->IMAGE,$this->BORDER,10,$this->BORDER+10,10,$color);

  ImageLine($this->IMAGE,$rulerX,$this->Y-$this->BORDER,$rulerX,$this->Y-$this->BORDER+2,$color);

  }

  }

  //--------------竖柱形图

  function imageColumnS(){

  $item_array=Split($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*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);

  }

  //--------------调试

  function debug(){

  echo "X:".$this->X."

  Y:".$this->Y;

  echo "

  BORDER:".$this->BORDER;

  $item_array=split($this->ARRAYSPLIT,$this->ITEMARRAY);

  $num=Count($item_array);

  echo "

  数值个数:".$num."

  数值:";

  for ($i=0;$i<$num;$i++){

  echo "

  ".$item_array[$i];

  }

  }

  }

  $report=new ImageReport;

  $report->setImage(600,300,255,255,255,1);//参数(长,宽,背影色R,G,B,是否透明1或0)

  $temparray="50,25,100,250,180,200,150,220,200,150,50,25,100,250,180,200,150,220,200,150";//数值,用指定符号隔开

  $report->setItem(',',$temparray,3,20);//参数(分隔数值的指定符号,数值变量,样式1为竖柱图2为横柱图3为折线图,距离)

  $report->setFont(1);//字体大小1-10

  $report->PrintReport();

  //$report->debug();//调式之用

  ?>