背景:对于kohana早期框架对类里面的before after以及controller和action的函数均可以用反射类来灵活按既定顺序执行,而在执行的时候假如异常,可以通过PHP提供的异常捕获进行捕获输出,这就涉及到类变对象后其参数的传递问题了,怎么给反射类里面的函数传递多参数乃至引用参数,这个PHP也提供了对应的反射类里函数传入的方法ReflectionMethod::invokeArgs。
使用代码片段如下:
$class = new ReflectionClass('Person'); // 建立 Person这个类的反射类 $instance = $class->newInstanceArgs($args); // 相当于实例化Person 类 public stdclass newInstance(mixed* args)//测试传入的对象是否为该类的一个实例
参考更多相关反射的文章:
http://flandycheng.blog.51cto.com/855176/326021/
http://www.phperz.com/article/14/0809/17371.html
自己研究:http://justwinit.cn/post/2090/
ReflectionMethod::invokeArgs
(PHP 5 >= 5.1.0)
ReflectionMethod::invokeArgs — 带参数执行
说明
public mixed ReflectionMethod::invokeArgs ( object $object , array $args )
使用数组给方法传送参数,并执行他。
参数
object
调用方法的对象,如果是静态对象,设置为 null
args
使用 array 传送的方法参数。
返回值
返回方法返回值
错误/异常
如果 object 指定的实例无法执行方法,那么产生 ReflectionException 异常。
如果方法调用失败,产生 ReflectionException
范例
Example #1 ReflectionMethod::invokeArgs() example
class HelloWorld {
public function sayHelloTo($name) {
return 'Hello ' . $name;
}
}
$reflectionMethod = new ReflectionMethod('HelloWorld', 'sayHelloTo');
echo $reflectionMethod->invokeArgs(new HelloWorld(), array('Mike'));
?>
以上例程会输出:
Hello Mike
注释
Note:
如果函数有参数需为引用,那么它们必须以引用方式传入。
参见
ReflectionMethod::invoke() - Invoke
__invoke()
call_user_func_array() - 调用回调函数,并把一个数组参数作为回调函数的参数
来自:http://help.bitscn.com/php/reflectionmethod.invokeargs.html

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

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.


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