这些是我的代码：
index.php 文件
<script>
$(document).ready(function() {
$('#num_fields').change(function(){
var num = $('#num_fields').val();
var i = 0,j=0;
var html = '';
for (i=1;i<=num;i++) {
html += 'Name: <input type="text" name="field-' + i + '" maxlength="25"/> Rating: <select name="rating-'+ i +'"><option value=50>1</option><option value=80>2</option><option value=110>3</option><option value=140>4</option><option value=170>5</option><option value=200>6</option><option value=230>7</option><option value=260>8</option><option value=290>9</option><option value=320>10</option></select><br/>';
}
$('#numFields').html(html);
});
});
</script>
<form name="input" method="post" action="generate.php">
Select number of fields:
<select id="num_fields" name="num_fields">
<option selected> SELECT </option>
<?php for($i=6;$i<=10;$i++)
echo "<option value=$i>$i</option>";
?>
</select>
<div id="numFields"></div><br/>
<input type="submit" name="submit" value="Generate Wheel"/>
</form>
生成.php 文件
<body>
<div style="margin-top: 0px;">
<a href="code here">Print This Image</a>
<img src="image.php" alt="" />
</div>
</body>
图像.php 文件
$num_fields = $_POST['num_fields'];
// create image
$image = imagecreate(500, 500);
// allocate some colors
$white = imagecolorallocate($image, 255, 255, 255);
$pink = imagecolorallocate($image, 255, 105, 180);
$red = imagecolorallocate($image, 255, 000, 000);
$green = imagecolorallocate($image, 034, 139, 034);
$brown = imagecolorallocate($image, 139, 069, 019);
$yellow = imagecolorallocate($image, 255, 255, 000);
$orange = imagecolorallocate($image, 255, 140, 000);
$blue = imagecolorallocate($image, 100, 149, 237);
$purple = imagecolorallocate($image, 218, 112, 214);
$gray = imagecolorallocate($image, 205, 205, 193);
$black = imagecolorallocate($image, 000, 000, 000);
$cyan = imagecolorallocate($image, 000, 255, 255);
//bg color//
imagefilledrectangle($image,0,0,500,500,$white);
$font = 'arial.ttf';
if($num_fields =='6')
{
// for each slices
imagefilledarc($image, 250, 250, $_POST['rating-1'], $_POST['rating-1'], 0, 60, $pink, IMG_ARC_EDGED);
imagefilledarc($image, 250, 250, $_POST['rating-2'], $_POST['rating-2'], 60, 120 , $green, IMG_ARC_EDGED);
imagefilledarc($image, 250, 250, $_POST['rating-3'], $_POST['rating-3'], 120, 180 , $red, IMG_ARC_EDGED);
imagefilledarc($image, 250, 250, $_POST['rating-4'], $_POST['rating-4'], 180, 240 , $gray, IMG_ARC_EDGED);
imagefilledarc($image, 250, 250, $_POST['rating-5'], $_POST['rating-5'], 240, 300 , $orange, IMG_ARC_EDGED);
imagefilledarc($image, 250, 250, $_POST['rating-6'], $_POST['rating-6'], 300, 360 , $blue, IMG_ARC_EDGED);
//outline
imagefilledarc($image, 250, 250, 400, 400, 0,360, $black, IMG_ARC_NOFILL); //outer circle
imagefilledarc($image, 250, 250, 320, 320, 0,360, $black, IMG_ARC_NOFILL); //inner circle
imageline($image, 250, 250, 450, 250, $black ); //line bet blue and pink 0 deg
imageline($image, 250, 250, 349, 78, $black ); //line bet orange and blue
imageline($image, 250, 250, 150, 78, $black ); //line bet orange and gray
imageline($image, 250, 250, 50, 250, $black ); //line bet red and gray
imageline($image, 250, 250, 151, 422, $black ); //line bet red and green
imageline($image, 250, 250, 350, 422, $black ); //line bet pink and green
//text legends 2
imagettftext($image, 9, 243, 425, 280, $black, $font, $_POST['field-1']);
imagettftext($image, 9, 183, 315, 415, $black, $font, $_POST['field-2']);
imagettftext($image, 9, 120, 130, 380, $black, $font, $_POST['field-3']);
imagettftext($image, 9, 60, 75, 210, $black, $font, $_POST['field-4']);
imagettftext($image, 9,0, 200, 80, $black, $font, $_POST['field-5']);
imagettftext($image, 9, 300, 378, 128, $black, $font, $_POST['field-6']);
// flush image
header('Content-type: image/png');
imagepng($image);
imagedestroy($image);
}
我得到的只是一个破碎的图像。请帮忙！:( 我想要的只是在渲染的饼图图像中有一个“打印此图像”选项，这是我知道在图像中放置 html 代码的唯一方法。如果您有其他解决方案，请通过建议帮助我。谢谢！
编辑：我只想在生成图像的页面上有一个“打印”按钮。我已经搜索过了，人们说我不能在header()之前放置任何 html 代码甚至是回显代码。如果我将 html 代码放在image.php文件中的所有 php 代码之后，它会显示图像图表，但 html 代码中的任何其他文本都不会显示。:(
