php走势图

<?php
Header("Content-type: image/gif");
$str=iconv("GB2312","UTF-8","XX网  版权所有");
$str1=iconv("GB2312","UTF-8","Copyright by Nbchem.com");
$str2=iconv("GB2312","UTF-8","XX有限公司 版权所有");
$str3=iconv("GB2312","UTF-8","厂家报价 - ");
$str4=iconv("GB2312","UTF-8","单位：万元/吨");
$str5=iconv("GB2312","UTF-8","20");
$str6=iconv("GB2312","UTF-8","15天");
$im = imagecreate(400,300);
$fnt = "c:\WINNT.0\fonts\simsun.ttc";
$a = ImageColorAllocate($im, 255,255,255);
$black = ImageColorAllocate($im, 0,0,0);
$red = ImageColorAllocate($im, 255,0,0);
$b = ImageColorAllocate($im,145,154,157);
$c = ImageColorAllocate($im, 192,192,192);
imagerectangle($im, 50, 50,350,250,$black);
imagefilledrectangle($im,50,50,350,250,$c);
////给长方形加黑边框
imageline($im,50,50,350,50,$black);
imageline($im,50,250,350,250,$black);
imageline($im,50,50,50,250,$black);
imageline($im,350,50,350,250,$black);
////给长方形加3条横线
imageline($im, 50, 100, 350, 100, $b);
imageline($im, 50, 150, 350, 150, $b);
imageline($im, 50, 200, 350, 200, $b);
////写入字符
ImageTTFText($im, 9, 0, 55, 100, $b, $fnt, $str);
ImageTTFText($im, 9, 0, 200, 200, $b, $fnt, $str1);
ImageTTFText($im, 9, 0, 90, 280, $black, $fnt, $str2);
ImageTTFText($im, 9, 0, 50, 35, $black, $fnt, $str3);
ImageTTFText($im, 9, 0, 280, 35, $black, $fnt, $str4);
ImageTTFText($im, 9, 0, 30, 55, $black, $fnt, $str5);
ImageTTFText($im, 9, 0, 345, 270, $black, $fnt, $str6);
////画统计图
$num=array(1,2,4,6,3,5,2,4,6,7,3,1,8,2,4);

$x_high=count($num)-1;
$y_high=20;
$x=300/$x_high;//每天占多少距离（时间）
$y=200/$y_high;//每元占多少距离（价格）
for($i=0;$i<count($num)-1;$i++)
    {
        //imageline($im,$x*$i,$num[$i]*$y,$x*($i+1),$num[$i+1]*$y,$red);//正面图像，因为默认左上角为原点
        imageline($im,$x*$i+50,$y*($y_high-$num[$i])+50,$x*($i+1)+50,$y*($y_high-$num[$i+1])+50,$red);//反面图像，改为左下角为原点
    }
////
ImageGif($im);
$filename="E:/php/image1/test1.gif";
unlink($filename);
ImageGif($im,$filename);
ImageDestroy($im);
?>