mPDF-html代码块内的PHP脚本，生成PDF文件

问题描述

大家好，

在脚本中如下所示，我需要在HTML代码中插入PHP脚本，但我在文档中找不到任何显示该操作方法的示例。

那可能吗？

1°我使用WordPres
2°，我使用Woocommerce
3°，我必须打印谢谢页面。在“谢谢”页面上，我有一个按钮，单击并下载文件。
4°生成PDF文件的PHP文件必须接收动态数据。
5°，PHP脚本必须包含在HTML代码中，如下所示。
6°当我单击按钮下载PDF文件时，出现以下错误消息。

通知：：未定义的变量：在行中的 C：\ xampppserver2 \ htdocs \ mrdigital \ wp-content \ themes \ astra-child \ testmpdf.PHP 中的顺序> 22

致命错误：未捕获的错误：在C：\ xampppserver2 \ htdocs \ mrdigital \ wp-content \ themes \ astra-child \ testmpdf.PHP中调用成员函数get_order_number（）时为null： 22堆栈跟踪：＃0 {main}放在 22 行中的 C：\ xampppserver2 \ htdocs \ mrdigital \ wp-content \ themes \ astra-child \ testmpdf.PHP 中

这是 22
行 $ order = $ _GET [$ order-> get_order_number（）];

这是整个 testmpdf.PHP 文件：

<?PHP
/**
 * @Author: exame
 * @Last Modified time: 2020-11-05 15:47:01
 */
use Mpdf\Mpdf;

require_once __DIR__ . '/vendor/autoload.PHP';

$mpdf = new Mpdf();

$mpdf = new \Mpdf\Mpdf(['tempDir' => __DIR__ . '/custom/temp/dir/path']);

$mpdf = new \Mpdf\Mpdf([
    'mode' => 'utf-8','orientation' => 'P','format' => 'A4'
]);

$order = $_GET[$order->get_order_number()]; 
$order = $_GET[$order->get_date_created()]; 

$html = '
<div id="pdfprintcontentarea">
                    <p class="woocommerce-notice woocommerce-notice--success woocommerce-thankyou-order-received">Obrigado. Seu pedido foi recebido. Enviamos o comprovante de compra por e-mail para você.</p>
            <p>Tempo de Reserva do Pedido: <b>24 horas</b> - Por favor efetue o pagamento agora antes que você perca a reserva!</p>
            <ul class="woocommerce-order-overview woocommerce-thankyou-order-details order_details">

            <li class="woocommerce-order-overview__order order">
                
                <strong>$order->get_order_number();</strong>
            </li>
                            
            <li class="woocommerce-order-overview__date date">
                Hora:                   <strong>10:56:01.507644</strong>
            </li>

            <li class="woocommerce-order-overview__date date">                  
                    <strong>wc_format_datetime( $order->get_date_created() );</strong>
            </li>

                
            <li class="woocommerce-order-overview__total total">
                    Total:                  <strong><span class="woocommerce-Price-amount amount"><bdi><span class="woocommerce-Price-currencySymbol">R$</span>5,00</bdi></span></strong>
            </li>

                <li class="woocommerce-order-overview__total total">
                    Status Pedido:                  <strong>Aguardando</strong>
                </li>

                                    <li class="woocommerce-order-overview__payment-method method">
                        Método de pagamento:                        <strong>Transferência Bancária Rápida e Gratuita pelo Aplicativo do Banco</strong>
                    </li>
</div> <!-- <div id="pdfprintcontentarea"> -->
';

//$html = file_get_contents(__DIR__. '/woocommerce/checkout/thankyou.PHP');
$mpdf->SetProtection(array(),'','MyPassword');
$mpdf->WriteHTML($html,\Mpdf\HTMLParserMode::HTML_BODY);// Load the html
$mpdf->Output('invoice.pdf',"D");
$mpdf->cleanup();

请问如何解决这种情况？

先谢谢您！

解决方法

您需要在创建wc_get_order之后运行它，并且，找到一种获取订单ID的简便方法。这是我下面提出的解决方案。

<?php
/**
 * @Author: exame
 * @Last Modified time: 2020-11-05 15:47:01
 */
use Mpdf\Mpdf;

require_once __DIR__ . '/vendor/autoload.php';



function pekky_print_pdf( $order_id ) {
$mpdf = new Mpdf();

$mpdf = new \Mpdf\Mpdf(['tempDir' => __DIR__ . '/custom/temp/dir/path']);

$mpdf = new \Mpdf\Mpdf([
    'mode' => 'utf-8','orientation' => 'P','format' => 'A4'
]);

$order = wc_get_order( $order_id ); 

$html = '
<div id="pdfprintcontentarea">
                    <p class="woocommerce-notice woocommerce-notice--success woocommerce-thankyou-order-received">Obrigado. Seu pedido foi recebido. Enviamos o comprovante de compra por e-mail para você.</p>
            <p>Tempo de Reserva do Pedido: <b>24 horas</b> - Por favor efetue o pagamento agora antes que você perca a reserva!</p>
            <ul class="woocommerce-order-overview woocommerce-thankyou-order-details order_details">

            <li class="woocommerce-order-overview__order order">
                
                <strong>$order->get_order_number();</strong>
            </li>
                            
            <li class="woocommerce-order-overview__date date">
                Hora:                   <strong>10:56:01.507644</strong>
            </li>

            <li class="woocommerce-order-overview__date date">                  
                    <strong>wc_format_datetime( $order->get_date_created() );</strong>
            </li>

                
            <li class="woocommerce-order-overview__total total">
                    Total:                  <strong><span class="woocommerce-Price-amount amount"><bdi><span class="woocommerce-Price-currencySymbol">R$</span>5,00</bdi></span></strong>
            </li>

                <li class="woocommerce-order-overview__total total">
                    Status Pedido:                  <strong>Aguardando</strong>
                </li>

                                    <li class="woocommerce-order-overview__payment-method method">
                        Método de pagamento:                        <strong>Transferência Bancária Rápida e Gratuita pelo Aplicativo do Banco</strong>
                    </li>
</div> <!-- <div id="pdfprintcontentarea"> -->
';

//$html = file_get_contents(__DIR__. '/woocommerce/checkout/thankyou.php');
$mpdf->SetProtection(array(),'','MyPassword');
$mpdf->WriteHTML($html,\Mpdf\HTMLParserMode::HTML_BODY);// Load the html
$mpdf->Output('invoice.pdf',"D");
$mpdf->cleanup();
}

// Hook to a woo func.
add_action( 'woocommerce_before_thankyou','pekky_print_pdf',10,1 );

,

非常感谢您的帮助。 这就是我扭转局势的方式。

1°，您需要知道我在Template-Child中定制了 mPDF Composer安装，并且在Default Root文件夹中定制了 NOT 。

2°，我必须明确地引用Wordpress wp-config.php 文件，否则，由于我的自定义安装，该文件永远无法正常工作。

3°，我必须明确地引用Woocommerce类 class-wc-order.php 文件。

4°现在，在代码中如下所示，我可以接收 order对象，并操纵所需的东西。

代码：

<?php

// Root Directory WP Config
require_once '/xampppserver2/htdocs/mrdigital/wp-config.php';   

// Root Directory CLASS WC ORDER
require_once '../../plugins/woocommerce/includes/class-wc-order.php';   

// Load MPDF Loader
require_once __DIR__ . '/vendor/autoload.php';

use Mpdf\Mpdf;

$mpdf = new Mpdf();
$mpdf = new \Mpdf\Mpdf(['tempDir' => __DIR__ . '/custom/temp/dir/path']);

$order = new WC_Order($_GET['key']);