Drawing statistical charts using PHP_PHP tutorial

How to draw statistical charts using PHP

The first method

add_data($d1); $gg->add_data($d2); $gg->add_data($d3); $gg->set_colors("ee00ff,dd8800,00ff00"); //Generate curve graph $gg->build("line",0); //Parameter 0 means displaying all curves, 1 means displaying the first one, and so on. //Generate rectangular chart //$gg->build("rectangle","2"); //Parameter 0 means displaying the first rectangle, 1 means displaying the first one, and so on. add_data($d1); $gg->add_data($d2); $gg->add_data($d3); $gg->set_colors("ee00ff,dd8800,00ff00"); //生成曲线图 $gg->build("line",0); //参数0表示显示所有曲线，1为显示第一条，依次类推 //生成矩形图 //$gg->build("rectangle","2"); //参数0表示显示第一个矩形，1也为显示第一条，其余依次类推 = 300 = 300 = 0; = 10; = 0; =0; =0; =(); =(); =(255,255,255); =(192,192,192); =(0,0,255); =(255,0,0); =(0,0,255); =(200,200,255); = (138,138,120); = (30,30,30); = ("ee00ff","dd8800","00ff00","104E8B" ; ; = ''; = '' add_data(, = 0(!( = (!() or (->array_error['add_data']="No data available for analysis" ( == 0 || (, -> = (->->array_data[] = set_img(,->graphwidth = ->graphheight = set_height_num(->height_num= get_RGB(){ =(>>16) & 0xff=(>>8) & 0xff=() & 0xff ((,, set_color_bg(,,->colorBg=(,, set_color_Grey(,,->colorGrey=(,, set_color_Blue(,,->colorBlue=(,, set_color_Red(,,->colorRed=(,, set_color_DarkBlue(,,->colorDarkBlue=(,, set_color_LightBlue(,,