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如何用php制作标准条形图_Php - Fatal编程技术网

如何用php制作标准条形图

如何用php制作标准条形图,php,Php,这个不起作用: <?php $values=array( "Jan" => 110, "Feb" => 130, "Mar" => 215, "Apr" => 81, "May" => 310, "Jun" => 110, "Jul" => 190, "Aug" => 175, "Sep" => 390, "Oct" => 286, "Nov" => 150, "Dec" => 196

这个不起作用:

    <?php

$values=array(

"Jan" => 110,

"Feb" => 130,

"Mar" => 215,

"Apr" => 81,

"May" => 310,

"Jun" => 110,

"Jul" => 190,

"Aug" => 175,

"Sep" => 390,

"Oct" => 286,

"Nov" => 150,

"Dec" => 196

);

$img_width=600;

$img_height=400;

$margins=20;

$graph_width=$img_width - $margins * 2;

$graph_height=$img_height - $margins * 2;

$img=imagecreate($img_width,$img_height);

$bar_width=20;

$total_bars=count($values);

$gap= ($graph_width- $total_bars * $bar_width ) / ($total_bars +1);

$bar_color=imagecolorallocate($img,0,64,128);

$background_color=imagecolorallocate($img,240,240,255);

$border_color=imagecolorallocate($img,200,200,200);

$line_color=imagecolorallocate($img,220,220,220);

imagefilledrectangle($img,1,1,$img_width-2,$img_height-2,$border_color);

$max_value=max($values);

$ratio= $graph_height/$max_value;

$horizontal_lines=20;

$horizontal_gap=$graph_height/$horizontal_lines;

for($i=1;$i<=$horizontal_lines;$i++){

$y=$img_height - $margins - $horizontal_gap * $i ;

imageline($img,$margins,$y,$img_width-$margins,$y,$line_color);

$v=intval($horizontal_gap * $i /$ratio);

imagestring($img,0,5,$y-5,$v,$bar_color);

for($i=0;$i< $total_bars; $i++){

list($key,$value)=each($values);

$x1= $margins + $gap + $i * ($gap+$bar_width) ;

$x2= $x1 + $bar_width;

$y1=$margins +$graph_height- intval($value * $ratio) ;

$y2=$img_height-$margins;

imagefilledrectangle($img,$x1,$y1,$x2,$y2,$bar_color);

imagestring($img,0,$x1+3,$y1-10,$value,$bar_color);

imagestring($img,0,$x1+3,$img_height-15,$key,$bar_color);

}


?>

检查此项,一旦svg使用此库,就可以将此svg用作图像块。如果仍然需要使用jpeg格式,可以使用imagemagick进行转换:

exec('convert test.svg test.jpeg');

我建议您在d3中使用稳定且易于复制的版本。您可以参考此版本或访问此网站:……这可能会帮助您。。。