How to use __tostring()? Summary of __tostring() instance usage

tostring()魔术方法　　将一个对象当做一个字符串来使用时，会自动调用该方法，并且在该方法中，可以返回一定的字符串，以表明该对象转换为字符串之后的结果。该魔术方法比较常用。 　　注意：如果没有定义该方法，则对象无法当做字符串来使用！类里面未定义tostring()方法的例子：

1. php中__tostring()魔术方法的使用方法汇总

简介：tostring()魔术方法　　将一个对象当做一个字符串来使用时，会自动调用该方法，并且在该方法中，可以返回一定的字符串，以表明该对象转换为字符串之后的结果。该魔术方法比较常用。 　　注意：如果没有定义该方法，则对象无法当做字符串来使用！类里面未定义tostring()方法的例子：<?phpini_set('display_errors', 1);class...

2. __invoke()如何使用？php中的__invoke()实例用法汇总

简介：tostring()魔术方法　　将一个对象当做一个字符串来使用时，会自动调用该方法，并且在该方法中，可以返回一定的字符串，以表明该对象转换为字符串之后的结果。该魔术方法比较常用。 　　注意：如果没有定义该方法，则对象无法当做字符串来使用！类里面未定义tostring()方法的例子：<?phpini_set('display_errors', 1);class...

3. 关于(String)的详细介绍

简介： 在java项目的实际开发和应用中，常常需要用到将对象转为String这一基本功能。本文将对常用的转换方法进行一个总结。常用的方法有Object.toString()，（String）要转换的对象，String.valueOf(Object)等。下面对这些方法一一进行分析。方法1：采用 Object.toString()方法请看下面的例子：Object ob...

4. Java中valueOf和toString,(String)之间的区别

简介：在java项目的实际开发和应用中，常常需要用到将对象转为String这一基本功能。本文将对常用的转换方法进行一个总结。常用的方法有Object.toString()，（String）要转换的对象，String.valueOf(Object)等。下面对这些方法一一进行分析。方法1：采用 Object.toString()方法请看下面的例子：Object object = getObject(

5. 魔术方法___toString()实例详解（php面向对象高级教程）

简介：我们都知道，在我们实例化一个类之后，访问类的属性时，都是$实例化名称->属性名这样的格式去访问，那么你们有没有直接用echo或者print输出对象呢。有的人说，这样应该是不行的，会报错吧。没错，这样直接输出确实会报错，但是，当我们用了魔术方法__toString时就可以了。  实例分析：  

6. 魔术方法__get()实例详解(php面向对象高级教程2)

Introduction: When you see this name, it gives you a very high-end feeling. Yes, magic methods are indeed advanced. So, what is a magic method? In PHP, methods starting with two underscores are called "Magic methods". For example, the __construct(), __destruct (), __clone() mentioned before, and __call(),,__get(), __set(),__sleep(), __wakeup(), __toString(), __autoload(), etc., They are all magic methods.

7. Understand the hexadecimal conversion and its function in JS

##Introduction: JS base conversion is divided into binary, octal, decimal, and hexadecimal conversions. We can directly use the object.toString() to achieve: Run The following code //converts decimal to hexadecimal (10).toString(16) // =>"a"//converts octal to hexadecimal (012).toString(16) // => ;"a"//Convert hexadecimal to decimal (0x16).toString(10) // =>"22"//Convert hexadecimal to octal

8. PHP object-oriented-detailed code examples of __tostring() and __invoke()

Introduction: When the __tostring() magic method uses an object as a string, it will automatically call this method, and in this method, a certain string can be returned to indicate that the object is converted into a string. result. This magic method is relatively common. Note: If this method is not defined, the object cannot be used as a string! Example of undefined __tostring() method in a class:

9. Float type addition in JS Example code sharing for subtraction, multiplication and division

Introduction: //Floating point addition function FloatAdd(arg1,arg2){ var r1,r2,m; try{r1=arg1. toString().split(.)[1].length}catch(e){r1=0} try{r2=arg2.toString().split(.)[1].length}catch(e){r2= 0} m=Math.pow(10,

10. c#Detailed explanation of formatted number code example

Introduction: int a = 12345678;//The format is sring output Label1.Text = string.Format(asdfadsf{0}adsfasdf,a);Label2.Text = asdfadsf+ a.ToString()+adsfasdf;Label1.Text = string.Format(asdfadsf{0:C}adsfasdf,a);//asdf

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