以下笔记都是按照此博文进行开发学习
一、从github上克隆项目到本地
git clone https://github.com/RryLee/StuGradeWithLaravel5.git
二、切换到本地项目目录下,安装composer
MacdeMacBook-Pro-3:~ mac$ cd DesktopMacdeMacBook-Pro-3:StuGradeWithLaravel5 mac$ curl -sS https://getcomposer.org/installer | phpAll settings correct for using ComposerDownloading 1.0.1...Composer successfully installed to: /Users/mac/Desktop/StuGradeWithLaravel5/composer.pharUse it: php composer.phar
// 可以将上边的命令放入到 bin目录下,方便后边不用每次都输入上次的命令
MacdeMacBook-Pro-3:StuGradeWithLaravel5 mac$ sudo mv composer.phar /usr/bin/composerMacdeMacBook-Pro-3:StuGradeWithLaravel5 mac$
// 更新composer
MacdeMacBook-Pro-3:StuGradeWithLaravel5 mac$ composer update
更新出现这样的问题,-_-!!!
MacdeMacBook-Pro-3:StuGradeWithLaravel5 mac$ composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)
Your requirements could not be resolved to an installable set of packages.
Problem 1
- laravel/framework v5.0.9 requires ext-mcrypt * -> the requested PHP extension mcrypt is missing from your system.
解决方法:
看起来是php没有开启mcrypt扩展,我的是没有开启mbstring扩展。。。
你看看你的php.ini里面有没有这个扩展,把前面的;号去掉然后重启apache呗
或者
要装PHP扩展包 mcrypt
在maxos 上可以打 brew install php-mcrypt
运行“sudo cp /etc/php.ini.default /etc/php.ini”,这样就可以通过php.ini来配置各种PHP功能了
;通过下面两项来调整PHP提交文件的最大值,比如phpMyAdmin中导入数据的最大值
upload_max_filesize = 2M
post_max_size = 8M
;比如通过display_errors来控制是否显示PHP程序的报错
display_errors = Off
运行“sudo apachectl restart”,重启Apache,这样PHP就可以用了。
解决方案:
vim /etc/php.ini
文件末尾追加一句
extension=mcrypt.so
最后执行成功的两段代码:
MacdeMacBook-Pro-3:apache2 mac$ brew install mcrypt
MacdeMacBook-Pro-3:apache2 mac$ export PATH=/usr/local/php5/bin:$PATH
桌面进入:
MacdeMacBook-Pro-3:~ mac$ cd Desktop/StuGrade
MacdeMacBook-Pro-3:StuGrade mac$

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.

In PHP, use the clone keyword to create a copy of the object and customize the cloning behavior through the \_\_clone magic method. 1. Use the clone keyword to make a shallow copy, cloning the object's properties but not the object's properties. 2. The \_\_clone method can deeply copy nested objects to avoid shallow copying problems. 3. Pay attention to avoid circular references and performance problems in cloning, and optimize cloning operations to improve efficiency.

PHP is suitable for web development and content management systems, and Python is suitable for data science, machine learning and automation scripts. 1.PHP performs well in building fast and scalable websites and applications and is commonly used in CMS such as WordPress. 2. Python has performed outstandingly in the fields of data science and machine learning, with rich libraries such as NumPy and TensorFlow.


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