一文讲解Laravel-snappy如何导出PDF-Laravel-PHP中文网

首页

php框架

Laravel

一文讲解Laravel-snappy如何导出PDF

藏色散人

Aug 30, 2021 pm 03:27 PM

pdf

下面由Laravel教程栏目给大家介绍如何使用Laravel-snappy导出PDF，希望对需要的朋友有所帮助！

前言

论坛里有很多关于如何使用 Laravel-snappy 的文章，但是很多都停留在安装、基本示例，对于实际的应用既没有说明用法，也没有解答一些问题和疑惑，因此在此整理一下，权当做个记录吧。

安装

以 ubuntu 为例

1. 执行安装 wkhtmltopdf：

composer require h4cc/wkhtmltopdf-amd64 0.12.x
composer require h4cc/wkhtmltoimage-amd64 0.12.x

顾名思义，分别安装的是 wkhtmltopdf 和 wkhtmltoimage。

2. 复制 wkhtmltopdf 到 ubuntu 可执行命令的目录中

sudo cp vendor/h4cc/wkhtmltoimage-amd64/bin/wkhtmltoimage-amd64 /usr/local/bin/
sudo cp vendor/h4cc/wkhtmltopdf-amd64/bin/wkhtmltopdf-amd64 /usr/local/bin/
//并使其可执行：
sudo chmod +x /usr/local/bin/wkhtmltoimage-amd64 
sudo chmod +x /usr/local/bin/wkhtmltopdf-amd64

3. 安装 laravel-snappy

composer require barryvdh/laravel-snappy

4. 将 ServiceProvider 添加到 config/app.php 中的 providers 数组中

Barryvdh\Snappy\ServiceProvider::class

5. 将 Facades 添加到 config/app.php 中的 aliases 数组中

&#39;PDF&#39; => Barryvdh\Snappy\Facades\SnappyPdf::class,
&#39;SnappyImage&#39; => Barryvdh\Snappy\Facades\SnappyImage::class,

6. 执行生成配置文件

php artisan vendor:publish --provider="Barryvdh\Snappy\ServiceProvider"

可以看到默认的配置文件为 config/snappy.php：

return [
    &#39;pdf&#39; => [
        &#39;enabled&#39; => true,
        &#39;binary&#39;  => env(&#39;WKHTML_PDF_BINARY&#39;, &#39;/usr/local/bin/wkhtmltopdf&#39;),
        &#39;timeout&#39; => false,
        &#39;options&#39; => [],
        &#39;env&#39;     => [],
    ],
    &#39;image&#39; => [
        &#39;enabled&#39; => true,
        &#39;binary&#39;  => env(&#39;WKHTML_IMG_BINARY&#39;, &#39;/usr/local/bin/wkhtmltoimage&#39;),
        &#39;timeout&#39; => false,
        &#39;options&#39; => [],
        &#39;env&#39;     => [],
    ],
];

注意，这里有个坑，默认 binary 配置为 /usr/local/bin/wkhtmltopdf 和 /usr/local/bin/wkhtmltoimage，在第一次使用的时候，会报错 /usr/local/bin/wkhtmltopdf不存在，这是因为在 linux 系统下，wkhtmltopdf 和 wkhtmltoimage 的真实路径和名称为：/usr/local/bin/wkhtmltopdf-amd64 和 /usr/local/bin/wkhtmltoimage-amd64。

因此，需要把配置信息修改为：

&#39;pdf&#39; => [
        ...
        &#39;binary&#39;  => env(&#39;WKHTML_PDF_BINARY&#39;, &#39;/usr/local/bin/wkhtmltopdf-amd64&#39;),
        ...
    ],
    &#39;image&#39; => [
        ...
        &#39;binary&#39;  => env(&#39;WKHTML_IMG_BINARY&#39;, &#39;/usr/local/bin/wkhtmltoimage-amd64&#39;),
        ...
    ],

开始使用

//使用方法1
$pdf = \PDF::loadView(&#39;welcome&#39;, $data);
return $pdf->download(&#39;welcome.pdf&#39;);
//使用方法2
$html = &#39;<html><head><meta charset="utf-8"></head><h1>订单id</h1><h2>12346546</h2></html>&#39;;
$pdf = \PDF::loadHTML($html);
return $pdf->inline();

很多博客里没有提到，使用方法 1 中，会报这样的错：

The exit status code &#39;1&#39; says something went wrong: stderr: "Loading pages (1/6) [> ] 0% [======> ] 10% QSslSocket: cannot resolve CRYPTO_num_locks QSslSocket: cannot resolve CRYPTO_set_id_callback QSslSocket: cannot resolve CRYPTO_set_locking_callback QSslSocket: cannot resolve sk_free QSslSocket: cannot resolve sk_num QSslSocket: cannot resolve sk_pop_free QSslSocket: cannot resolve sk_value QSslSocket: cannot resolve SSL_library_init QSslSocket: cannot resolve SSL_load_error_strings QSslSocket: cannot resolve SSLv3_client_method QSslSocket: cannot resolve SSLv23_client_method QSslSocket: cannot resolve SSLv3_server_method QSslSocket: cannot resolve SSLv23_server_method QSslSocket: cannot resolve X509_STORE_CTX_get_chain QSslSocket: cannot resolve OPENSSL_add_all_algorithms_noconf QSslSocket: cannot resolve OPENSSL_add_all_algorithms_conf QSslSocket: cannot resolve SSLeay QSslSocket: cannot call unresolved function CRYPTO_num_locks QSslSocket: cannot call unresolved function CRYPTO_set_id_callback QSslSocket: cannot call unresolved function CRYPTO_set_locking_callback QSslSocket: cannot call unresolved function SSL_library_init QSslSocket: cannot call unresolved function SSLv23_client_method QSslSocket: cannot call unresolved function sk_num [==================> ] 31% QSslSocket: cannot call unresolved function SSLv23_client_method QSslSocket: cannot call unresolved function SSL_library_init [============================================================] 100% Counting pages (2/6) [============================================================] Object 1 of 1 Resolving links (4/6) [============================================================] Object 1 of 1 Loading headers and footers (5/6) Printing pages (6/6) [> ] Preparing [============================================================] Page 1 of 1 Done Exit with code 1 due to network error: UnknownNetworkError QSslSocket: cannot call unresolved function CRYPTO_num_locks QSslSocket: cannot call unresolved function CRYPTO_set_id_callback QSslSocket: cannot call unresolved function CRYPTO_set_locking_callback " stdout: "" command: /usr/local/bin/wkhtmltopdf-amd64 --lowquality &#39;/tmp/knp_snappy612c3edcdfc855.21787864.html&#39; &#39;/tmp/knp_snappy612c3edcdfce49.80482557.pdf&#39;.

执行：

sudo apt-get update
sudo apt install libssl1.0-dev

修复完成，导出 welcome 页面。

如果使用 save () 方法保存，默认保存到 /public 文件夹下，并且如果文件名相同的情况下，第二次保存会提示文件已经存在。

以上是一文讲解Laravel-snappy如何导出PDF的详细内容。更多信息请关注PHP中文网其他相关文章！

声明

本文转载于：learnku。如有侵权，请联系admin@php.cn删除

Laravel的影响：简化网络开发Apr 21, 2025 am 12:18 AM

Laravel通过简化Web开发过程和提供强大功能脱颖而出。其优势包括：1)简洁的语法和强大的ORM系统，2)高效的路由和认证系统，3)丰富的第三方库支持，使得开发者能专注于编写优雅的代码并提高开发效率。

Laravel：前端还是后端？澄清框架的角色Apr 21, 2025 am 12:17 AM

laravelispredminandermanthandermanthandermanthandermanthermanderframework，设计Forserver-SideLogic，databasemagement，andapideplupment，thryitalsosupportsfortfortsfrontenddevelopmentwithbladeTemplates。