An article explaining how to export PDF with Laravel-snappy-Laravel-php.cn

Home

PHP Framework

Laravel

An article explaining how to export PDF with Laravel-snappy

藏色散人

Aug 30, 2021 pm 03:27 PM

pdf

The following tutorial column from Laravel will introduce to you how to use Laravel-snappy to export PDF. I hope it will be helpful to friends in need!

Preface

There are many articles on how to use Laravel-snappy in the forum, but many of them only focus on installation and basic examples. There is no explanation of usage, and no answers to some questions and doubts, so I will sort it out here and treat it as a record.

Installation

Take ubuntu as an example

1. Execute and install wkhtmltopdf:

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

As the name suggests, wkhtmltopdf and wkhtmltopdf are installed respectively. wkhtmltoimage.

2. Copy wkhtmltopdf to the directory of the ubuntu executable command

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. Install laravel-snappy

composer require barryvdh/laravel-snappy

4. Add ServiceProvider to config/app.php In the providers array

Barryvdh\Snappy\ServiceProvider::class

5. Add Facades to the aliases array in config/app.php

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

6. Execute the generated configuration file

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

You can see The default configuration file is 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;     => [],
    ],
];

Note that there is a pit here. The default binary configuration is /usr/local/bin/wkhtmltopdf and /usr/local/bin/wkhtmltoimage. In the first When used for the first time, an error will be reported that /usr/local/bin/wkhtmltopdf does not exist. This is because under the Linux system, the real paths and names of wkhtmltopdf and wkhtmltoimage are: /usr/local/bin/wkhtmltopdf-amd64 and /usr/ local/bin/wkhtmltoimage-amd64.

An article explaining how to export PDF with Laravel-snappy

Therefore, the configuration information needs to be modified to:

&#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;),
        ...
    ],

Start using

//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 id="订单id">订单id</h1><h2 id="">12346546</h2></html>&#39;;
$pdf = \PDF::loadHTML($html);
return $pdf->inline();

Many blogs have not mentioned it, usage method 1 , the following error will be reported:

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;.

Execution:

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

The repair is completed and the welcome page is exported.

If you use the save () method to save, it will be saved to the /public folder by default. If the file name is the same, the second save will prompt that the file already exists.

The above is the detailed content of An article explaining how to export PDF with Laravel-snappy. For more information, please follow other related articles on the PHP Chinese website!

Statement

This article is reproduced at:learnku. If there is any infringement, please contact admin@php.cn delete

Using Laravel: Streamlining Web Development with PHPApr 19, 2025 am 12:18 AM

Laravel optimizes the web development process including: 1. Use the routing system to manage the URL structure; 2. Use the Blade template engine to simplify view development; 3. Handle time-consuming tasks through queues; 4. Use EloquentORM to simplify database operations; 5. Follow best practices to improve code quality and maintainability.

Laravel: An Introduction to the PHP Web FrameworkApr 19, 2025 am 12:15 AM

Laravel is a modern PHP framework that provides a powerful tool set, simplifies development processes and improves maintainability and scalability of code. 1) EloquentORM simplifies database operations; 2) Blade template engine makes front-end development intuitive; 3) Artisan command line tools improve development efficiency; 4) Performance optimization includes using EagerLoading, caching mechanism, following MVC architecture, queue processing and writing test cases.

Laravel: MVC Architecture and Best PracticesApr 19, 2025 am 12:13 AM

Laravel's MVC architecture improves the structure and maintainability of the code through models, views, and controllers for separation of data logic, presentation and business processing. 1) The model processes data, 2) The view is responsible for display, 3) The controller processes user input and business logic. This architecture allows developers to focus on business logic and avoid falling into the quagmire of code.

Laravel: Key Features and Advantages ExplainedApr 19, 2025 am 12:12 AM

Laravel is a PHP framework based on MVC architecture, with concise syntax, powerful command line tools, convenient data operation and flexible template engine. 1. Elegant syntax and easy-to-use API make development quick and easy to use. 2. Artisan command line tool simplifies code generation and database management. 3.EloquentORM makes data operation intuitive and simple. 4. The Blade template engine supports advanced view logic.

Building Backend with Laravel: A GuideApr 19, 2025 am 12:02 AM

Laravel is suitable for building backend services because it provides elegant syntax, rich functionality and strong community support. 1) Laravel is based on the MVC architecture, simplifying the development process. 2) It contains EloquentORM, optimizes database operations. 3) Laravel's ecosystem provides tools such as Artisan, Blade and routing systems to improve development efficiency.

Laravel framework skills sharingApr 18, 2025 pm 01:12 PM

In this era of continuous technological advancement, mastering advanced frameworks is crucial for modern programmers. This article will help you improve your development skills by sharing little-known techniques in the Laravel framework. Known for its elegant syntax and a wide range of features, this article will dig into its powerful features and provide practical tips and tricks to help you create efficient and maintainable web applications.

The difference between laravel and thinkphpApr 18, 2025 pm 01:09 PM

Laravel and ThinkPHP are both popular PHP frameworks and have their own advantages and disadvantages in development. This article will compare the two in depth, highlighting their architecture, features, and performance differences to help developers make informed choices based on their specific project needs.

Laravel user login function listApr 18, 2025 pm 01:06 PM

Building user login capabilities in Laravel is a crucial task and this article will provide a comprehensive overview covering every critical step from user registration to login verification. We will dive into the power of Laravel’s built-in verification capabilities and guide you through customizing and extending the login process to suit specific needs. By following these step-by-step instructions, you can create a secure and reliable login system that provides a seamless access experience for users of your Laravel application.

See all articles

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

Assassin's Creed Shadows: Seashell Riddle Solution

3 weeks agoByDDD

What's New in Windows 11 KB5054979 & How to Fix Update Issues

2 weeks agoByDDD

Where to find the Crane Control Keycard in Atomfall

3 weeks agoByDDD

Saving in R.E.P.O. Explained (And Save Files)

1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Assassin's Creed Shadows - How To Find The Blacksmith And Unlock Weapon And Armour Customisation

4 weeks agoByDDD

Hot Tools

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.