我想在有人点击生成 pdf 按钮时生成 pdf。该pdf包含与用户在网页上的图像中突出显示的内容相对应的突出显示的一堆方块的图像。每当我尝试包含 svg 时,我都会得到一个空白的 pdf。有什么帮助吗?
trial.html:
<?php
use Dompdf\Dompdf;
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;
if(isset($_POST['send']))
{
$output = ' <!DOCTYPE html>
<svg width="564" height="409" >
<image
href="https://media.geeksforgeeks.org/wp-content/uploads/unique-rectangles-formed-using-
n-unit-squares.png"
width="564"
height="409"
/>
<polygon title="1" points="21,385 24,309 100,309 101,385" />
<polygon title="2" points="102,305 23,304 23,228 101,227" />
<polygon title="3" points="103,225 26,228 25,149 99,151" />
<polygon title="4" points="103,147 102,65 25,70 23,147" />
</svg>';
// $output .= '<img src="data:image/svg+xml;base64,'.base64_encode($svg).'" width="100" height="100" />';
require 'C:\Users\Main\vendor/autoload.php';
$cart_body='<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Squares</title></head><body><p>Test Printing...</p></body></html>';
$dompdf = new Dompdf();
$dompdf->load_html($output);//body -> html content which needs to be converted as pdf..
$dompdf->render();
$dompdf->stream("sample.pdf");
}?>
script.js:
function handleSVGClick(event) {
if (event.target.tagName === "polygon") {
event.target.style.fill = `hsl(${Math.random() * 360}, 90%, 60%)`;
}
}
style.css:
polygon {
stroke-width: 2px;
stroke: #333;
fill: transparent;
}
答案 0 :(得分:0)
试试这个:
trial.html:
<?php
require 'C:/Users/Main/vendor/autoload.php';
use Dompdf\Dompdf;
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;
if(isset($_POST['send']))
{
//any embedded images need to be base64 encoded as DataURIs
$svg = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg xmlns="http://www.w3.org/2000/svg" width="564" height="409" >
<image
href="data:image/jpg;base64,' . base64_encode(file_get_contents('https://media.geeksforgeeks.org/wp-content/uploads/unique-rectangles-formed-using-n-unit-squares.png')) . '"
width="564"
height="409"
/>
<polygon title="1" points="21,385 24,309 100,309 101,385" />
<polygon title="2" points="102,305 23,304 23,228 101,227" />
<polygon title="3" points="103,225 26,228 25,149 99,151" />
<polygon title="4" points="103,147 102,65 25,70 23,147" />
</svg>';
//convert SVG image to an <img /> element with the SVG image as a DataURI
$output = '<img src="data:image/svg+xml;base64,'.base64_encode($svg).'" width="564" height="409" />';
$cart_body='<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Squares</title></head><body><p>Test Printing...</p></body></html>';
$dompdf = new Dompdf();
$dompdf->load_html($output); //body -> html content which needs to be converted as pdf..
$dompdf->render();
$dompdf->stream("sample.pdf");
}?>
script.js:
function handleSVGClick(event) {
if (event.target.tagName === "polygon") {
event.target.style.fill = `hsl(${Math.random() * 360}, 90%, 60%)`;
}
}
style.css:
polygon {
stroke-width: 2px;
stroke: #333;
fill: transparent;
}
require
) 之前需要使用 use Dompdf\Dompdf;
语句嵌入“原始”SVG (
$html = '<img src="data:image/svg+xml;base64,' . base64_encode($svg) . '" ...>';
上面的代码使用 $svg
作为独立的 SVG 图像(而不是用于嵌入 HTML 的 SVG 图像)。然后将其编码为 <img />
元素的 DataURI,该元素应呈现为 PDF。由于 SVG 图像本身包含嵌入图像,因此也需要 encoded as a DataURI。
PDF 中的图像应如下所示: