


PHP framework learning Laravel, php framework laravel_PHP tutorial
PHP框架学习之Laravel,php框架laravel
自从接触PHP以来一直使用Yii,感觉Yii实现功能比较简单,是一个很不错的框架。最近由于工作的原因开始研究Laravel5,不得不说我在第一步安装就被坑着了,下面就是我痛苦的学习成果。Laravel对我来说完全是新东西,如果内容有误,烦请留言或QQ我,帮我纠正错误,感激不尽!!!
1.首先安装php,最好5.<span>6以上版本 (</span>1)windows安装composer过程中需要指定php.<span>exe的路径 (</span>2)linux安装composer过程中需要利用php-<span>cli功能 </span>2.<span>安装composer (</span>1<span>)windows安装composer a</span>.windows下载composer软件,<span>然后next直到完成 b</span>.win+R => 输入cmd => 输入composer,<span> 如果出现composer字体表示安装成功 (</span>2<span>)linux安装composer a</span>.$ curl -sS https:<span>//</span><span>getcomposer.org/installer | php</span> b.此时在~/.composer下应该会产生composer.<span>phar 这个文件 c</span>.$ mv composer.phar /usr/local/bin/<span>composer</span><span> d</span>.将composer.phar移动成/usr/local/bin/composer全局下,以后可以直接使用composer,而不需要php composer.<span>phar<br /> e.$ composer<br /> <br />3.修改composer镜像源(建议第一种)<br /> (1)将配置信息添加到 composer 的配置文件 <code>config.json</code> 中(系统全局配置)<br /> $</span><code class="bash hljs">composer config -g repositories.packagist composer http://packagist.phpcomposer.com</code>
<span> (2)</span>将配置信息添加到单个项目的 <code>composer.json</code> 文件中(单个项目配置) <span>注意最后几行<code class="json hljs"><span class="hljs-attribute">repositories</span></code></span>
<code class="json hljs">{ <span class="hljs-attribute">name": <span class="hljs-value"><span class="hljs-string">"laravel/laravel", "<span class="hljs-attribute">description": <span class="hljs-value"><span class="hljs-string">"The Laravel Framework.", "<span class="hljs-attribute">keywords": <span class="hljs-value">[<span class="hljs-string">"framework", <span class="hljs-string">"laravel"], "<span class="hljs-attribute">license": <span class="hljs-value"><span class="hljs-string">"MIT", "<span class="hljs-attribute">type": <span class="hljs-value"><span class="hljs-string">"project", "<span class="hljs-attribute">require": <span class="hljs-value">{ "<span class="hljs-attribute">php": <span class="hljs-value"><span class="hljs-string">">=5.5.9", "<span class="hljs-attribute">laravel/framework": <span class="hljs-value"><span class="hljs-string">"5.1.*" }, "<span class="hljs-attribute">require-dev": <span class="hljs-value">{ "<span class="hljs-attribute">fzaninotto/faker": <span class="hljs-value"><span class="hljs-string">"~1.4", "<span class="hljs-attribute">mockery/mockery": <span class="hljs-value"><span class="hljs-string">"0.9.*", "<span class="hljs-attribute">phpunit/phpunit": <span class="hljs-value"><span class="hljs-string">"~4.0", "<span class="hljs-attribute">phpspec/phpspec": <span class="hljs-value"><span class="hljs-string">"~2.1" }, "<span class="hljs-attribute">autoload": <span class="hljs-value">{ "<span class="hljs-attribute">classmap": <span class="hljs-value">[ <span class="hljs-string">"database" ], "<span class="hljs-attribute">psr-4": <span class="hljs-value">{ "<span class="hljs-attribute">App\\": <span class="hljs-value"><span class="hljs-string">"app/" } }, "<span class="hljs-attribute">autoload-dev": <span class="hljs-value">{ "<span class="hljs-attribute">classmap": <span class="hljs-value">[ <span class="hljs-string">"tests/TestCase.php" ] }, "<span class="hljs-attribute">scripts": <span class="hljs-value">{ "<span class="hljs-attribute">post-install-cmd": <span class="hljs-value">[ <span class="hljs-string">"php artisan clear-compiled", <span class="hljs-string">"php artisan optimize" ], "<span class="hljs-attribute">pre-update-cmd": <span class="hljs-value">[ <span class="hljs-string">"php artisan clear-compiled" ], "<span class="hljs-attribute">post-update-cmd": <span class="hljs-value">[ <span class="hljs-string">"php artisan optimize" ], "<span class="hljs-attribute">post-root-package-install": <span class="hljs-value">[ <span class="hljs-string">"php -r \"copy('.env.example', '.env');\"" ], "<span class="hljs-attribute">post-create-project-cmd": <span class="hljs-value">[ <span class="hljs-string">"php artisan key:generate" ] }, "<span class="hljs-attribute">config": <span class="hljs-value">{ "<span class="hljs-attribute">preferred-install": <span class="hljs-value"><span class="hljs-string">"dist" }, "<span class="hljs-attribute">repositories": <span class="hljs-value">[ {"<span class="hljs-attribute">type": <span class="hljs-value"><span class="hljs-string">"composer", "<span class="hljs-attribute">url": <span class="hljs-value"><span class="hljs-string">"http://packagist.phpcomposer.com"}, {"<span class="hljs-attribute">packagist": <span class="hljs-value"><span class="hljs-literal">false} ] }</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></code>
4.安装laravel<br />$ composer create-project laravel/laravel learnlaravel5<br />浏览器访问localhost/learnlaravel5/public,出现Laravel5表示laravel5安装成功

PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.

The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.

PHP is not dead. 1) The PHP community actively solves performance and security issues, and PHP7.x improves performance. 2) PHP is suitable for modern web development and is widely used in large websites. 3) PHP is easy to learn and the server performs well, but the type system is not as strict as static languages. 4) PHP is still important in the fields of content management and e-commerce, and the ecosystem continues to evolve. 5) Optimize performance through OPcache and APC, and use OOP and design patterns to improve code quality.

PHP and Python have their own advantages and disadvantages, and the choice depends on the project requirements. 1) PHP is suitable for web development, easy to learn, rich community resources, but the syntax is not modern enough, and performance and security need to be paid attention to. 2) Python is suitable for data science and machine learning, with concise syntax and easy to learn, but there are bottlenecks in execution speed and memory management.

PHP is used to build dynamic websites, and its core functions include: 1. Generate dynamic content and generate web pages in real time by connecting with the database; 2. Process user interaction and form submissions, verify inputs and respond to operations; 3. Manage sessions and user authentication to provide a personalized experience; 4. Optimize performance and follow best practices to improve website efficiency and security.

PHP uses MySQLi and PDO extensions to interact in database operations and server-side logic processing, and processes server-side logic through functions such as session management. 1) Use MySQLi or PDO to connect to the database and execute SQL queries. 2) Handle HTTP requests and user status through session management and other functions. 3) Use transactions to ensure the atomicity of database operations. 4) Prevent SQL injection, use exception handling and closing connections for debugging. 5) Optimize performance through indexing and cache, write highly readable code and perform error handling.

Using preprocessing statements and PDO in PHP can effectively prevent SQL injection attacks. 1) Use PDO to connect to the database and set the error mode. 2) Create preprocessing statements through the prepare method and pass data using placeholders and execute methods. 3) Process query results and ensure the security and performance of the code.


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