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How to use GET()? Summary of php GET() instance usage

伊谢尔伦
Release: 2023-03-08 14:48:01
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In some PHP built-in functions (such as mkdir), adding @ in front can shield the errors thrown by the function So how do custom functions achieve this? I tried throw new Exception and trigger_error but they couldn't be blocked by @ Additional instructions: It's like this. For example, I want to write a JsonFile::get() method that throws an error when the file does not exist, throws an error when the path is illegal, throws an error when decoding fails, and returns false. When the user cares about the error message, he can catch and handle it by himself; when he doesn't care about the error message and just wants to get the file content or false (failure), he can call @JsonFile::get() like this Mainly for convenience. How to implement such a custom method (or function)? Or is my way of thinking not very good? Is there a convenient and reasonable implementation method? 1. How to prevent the custom function in PHP from throwing an error when containing @? Introduction: In some PHP built-in functions (such as mkdir), adding @ in front can shield the error thrown by the function. Then since

1. Recommended articles about the php trigger_error() function 10 articles

How to use GET()? Summary of php GET() instance usage

Introduction: In some PHP built-in functions (such as mkdir), adding @ in front can Mask the errors thrown by this function. So how can a custom function achieve this? I tried throw new Exception and trigger_error and they couldn't be blocked by @. Additional explanation: It's like this. For example, I want to write a JsonFile::get() method that throws an error when the file does not exist and throws an error when the path is illegal. When decoding fails, an error is thrown and false is returned. When the user cares about the error message, he or she can capture and handle it by themselves;...

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How to use GET()? Summary of php GET() instance usage

Introduction: Optional is a newly introduced class in Java 8. This is a container object that can be null. . If the value exists, the isPresent() method will return true, and calling the get() method will return the object.

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How to use GET()? Summary of php GET() instance usage

Introduction: When you see this name, you have 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.

4. POST() method and GET() method for submitting form data in php

How to use GET()? Summary of php GET() instance usage

Introduction: Obtaining form data is the most commonly used operation in form applications. It is often necessary for the PHP background to obtain various data submitted by users in the foreground form page from the foreground page. There are two ways to transfer form data, one is the POST() method, and the other is the GET() method. The specific method of obtaining data is specified by the method attribute of the

form. The specific application of these two methods in Web forms is explained below.

5. Use jQuery to sort the unordered list

How to use GET()? Summary of php GET() instance usage

##Introduction: The example in this article describes how jQuery implements the sorting function of unordered lists. Share it with everyone for your reference. The details are as follows: The principle of using jQuery to sort the unordered list is: get all the list items in the unordered list, convert them into array form, use JavaScript functions to sort them and output them again. The jQuery functions used include ready(), get(), text(), each(), append() and Java

6. python dict.get( ) and dict['key']

How to use GET()? Summary of php GET() instance usage

Introduction: The following editor will bring you a detailed explanation of the difference between python dict.get() and dict['key']. The editor thinks it’s pretty good, so I’ll share it with you now and give it as a reference. Let’s follow the editor to take a look

7. Yii Framework Official Guide Supplement Series 29 - Cache: Data Cache

How to use GET()? Summary of php GET() instance usage

Introduction: Data caching stores some PHP variables in the cache and then retrieves them from the cache later. For this purpose, the base class CCache of caching components provides the two most commonly used methods: set() and get(). To store a variable in the cache...

8. Simple example of the definition and usage of PHP object-oriented programming classes

How to use GET()? Summary of php GET() instance usage

Introduction: This article mainly introduces the definition and usage of PHP object-oriented programming classes, and analyzes the definition and instantiation of PHP classes in the form of examples. , __set() and __get() specific usage tips, friends in need can refer to

9. Concise summary of Magic Method in PHP classes

How to use GET()? Summary of php GET() instance usage

Introduction: This article mainly introduces a concise summary of the Magic Method in the PHP class. These Methods include __construct(), __destruct(), __call(), __callStatic(), __get(), __set(), __toString(), etc. Friends in need can refer to

10. Detailed explanation of ajax - get() method instance in jQuery

How to use GET()? Summary of php GET() instance usage

##Introduction: In JQuery You can use get, post and ajax methods to transfer data to the server. Next, through this article, I will introduce you to a detailed example of the ajax-get() method in jquery. Friends in need can refer to it

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