PHP namespace details
This article mainly introduces the namespace in PHP and explains the namespace) for more information, see
Overview
PHP's support for namespaces has gone through a difficult journey. Fortunately, PHP introduced namespaces from 5.
It is quite difficult to name variables, functions, and classes. in addition to taking into account the ease of understanding of the variable name, you also need to worry about whether the name has been used elsewhere. in a short script, the second
A namespace is a domain in which all type names in a domain must be unique, with different types grouped into hierarchical namespaces.The benefits of namespaces are: 1, avoid name collisions, 2, easy to find type names.such as:
/* + Tips + | this document is Haohappy-read | notes in the ClassesandObjects chapter | translation-oriented + personal experiences | do not repost the notes to avoid unnecessary troubles. thank you |
/* + --------------------------------------------
This article mainly introduces the namespace in PHP and explains the namespace) for more information, see
Overview
PHP's support for namespaces has gone through a difficult journey. Fortunately, PHP introduced namespaces from 5.3. Since PHP
Namespaces are primarily designed to address possible conflicts between classes and functions in your code. This article gives you a description of the key features of PHP namespace, including the definition of namespaces and other knowledge points,
Namespaces in PHP are described in detail
This article mainly introduces the namespace details in PHP, this article explains the concept of namespaces (namespace), the use of namespaces, the definition of namespaces, child namespaces, calling code
Want to write efficient JavaScript class library but do not do;Try to read someone else's library, but understand it as well as you know it;Want to delve into the JS advanced function, but the content of the authoritative book is too fragmented,Even
Operator is a C + + keyword that is used in conjunction with an operator to represent an operator function that should be understood as a function name as a whole operator=.This is a method of the C + + extension operator function, although it looks
In IntroductionC ++Before the internal connection and external connection in, describe some concepts.
1. Statement
A declaration introduces a name into a scope;
In c ++, it is legal to repeat a declaration in a scope.
The following are declarations:
Basic python FunctionsSignificance of Using Functions
First of all, we must realize that functions are very important in python usage. For some code that is frequently repeated when we write code, we often use functions to solve such problems.
This
Python function basics 2: python function Basics
1. What are naming keyword parameters?
Format: All parameters after * are named keyword parameters.
Features: 1. The caller of the constrained function must pass the value in the form of Kye = value.
2
JQuery is easy to handle. noConflict (), jQuery. the implementation principles behind noConflict () are worth learning and understanding by Web developers. If you are interested, you can refer to jQuery as one of the most widely used front-end
This article mainly introduces how to play jQuery with you in three minutes. for more information about noConflict (), see jQuery, one of the most widely used front-end frameworks. There are a large number of third-party libraries and plug-ins
My C ++ notes (data sharing and protection) and notes
* Data sharing and protection: * 1. Scope: * scope is a region where an identifier is valid in the body of the program. In C ++, the identifiers have the function prototype scope, local scope
# # # Python's continuation walk function pitThe previous article briefly introduced some of the functions of the simple use, this time continue to trample the function of the pit1. Function objectsThe function can also be passed as a parameter to
1. Function nesting1, 1 function nested definition: Inside a function, another function is defined.F1 ():X=1F2 ():Print (' from F2 ')F2 ()F1 ()1, 2 nested calls to functions: in the process of invoking a function, another function is called.def Bar (
1. NamespacesNamespaces are a piece of memory space that holds the variable name and value relationship records, with a total of three namespaces in Python, built-in namespaces, global namespaces, and local namespaces. The three namespaces are
First, the name of the keyword parameters:What is a named keyword parameter?Format: After * The parameters are all named keyword parametersCharacteristics:1 must be passed to the value1 The caller of the constraint function must pass the value in
Dynamic parameter *args **kwargs *args dynamic parameter, the Universal parameter # Args accepts all positional parameters corresponding to the argument and places it in the Yongzu.def func (*args): print(args) func (1,2,3,4,5,6)# (1, 2, 3, 4, 5,
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