types of magic

Tag: Method attribute reg Serialize href Magic method images obj Lstat0x01 PrefaceThe day before yesterday, the school's CTF competition, there is a question about PHP anti-serialization vulnerability bypass wakeup, and finally followed the big boys learned a wave posture.Brief introduction to serialization and deserialization of 0x02 principleSerialization: compressing complex data types into a string data

Since python2.2, the classes and types have been unified,The practice is to convert int (), float (), str (), list (), tuple () to factory functionFactory functions: Is an object that, when you call them, is actually creating a corresponding instance objectsuch as: >>>a = Int (' 123 ')>>>b = Int (' 456 ')>>>a + b579A and B are factory functions (class objects), an instance object of intThe __add__ Magic fun

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Examples of functions and usage of common magic methods in PHP This article describes the functions and usage of common magic methods in PHP. This article describes constructor and destructor _ construct () and _ desctruct () and Property Overloading _ get () and _ set (), _ isset (), and other magic methods. For more information, see Overview In object-oriented

This article describes the functions and usage of common magic methods in PHP. This article describes constructor and destructor _ construct () and _ desctruct () and PropertyOverloading _ get () and _ set (), _ isset () and other magic methods. For more information, see Overview In object-oriented programming, PHP provides a series of magic methods, which provi

all types that inherit to Arearegistration in all referenced assemblies . The Registerarea method of the type is called to register the route with the routing table.2. Call the Routeconfig.registerroutes method to register the routing information defined in the project into the routing table.UrlRoutingModuleIn the previous article, IIS was introduced through HttpModule to complete the pipeline expansion of ASP. NET no

ASP. NET has no magic -- ASP. net mvc model binding, asp. netmvc The article management function is available in My Blog to publish and modify articles. However, the most important typographical function is missing for the article content, A blog without typographical structure is largely unreadable. Because the article is viewed in a browser, the layout of the article is actually consistent with that of the webpage, it is implemented through HTML + C

letters capitalized 2 field names to reflect the meaning of the field 3 Field name cannot be a keyword subtype Attribute setting the field type: Alpha character types are stored in the database as Char Numeric number type (with fractional digits before adding n) Date Date type (set in NULL in value format: 00/00/0000) The looical logical type (true/flase) is stored in the database as a numeric type with 0/1 differences Blob binary Time is the corresp

constants cannot be changed and constants cannot be destroyed Different scopes: constants have a super global scope (functions can be used directly inside and outside the function) Available types are different: constants can only store scalar types: int,float,string,bool To determine whether a constant exists: defined ()The result of the judgment is a Boolean value.Common form: if (defined

; Htmlmapelement object. Areas;//IE678 return [Object Object] object with Htmlcollection feature (with Nameditem method)IE9, 10, 11 return htmlcollection//FF30.0, chrome back nodelistDocument.getelementsbyname;//IE678 return [Object Object] object with NodeList feature (no Nameditem method)IE9, 10, 11, FF, chrome all return nodelistnode object. childNodes;//IE5678 return [Object Object] object with Htmlcollection feature (with Nameditem method)//IE9, 10 returns [Object Htmlcollection]//IE11, chr

Tags: build creat edit Unable to post string RTM MDAEveryone knows that in a relational database, each field in a table has its own properties, such as data type, length, whether it is empty, the primary foreign key, the index, and the relationship between the table and tables. However, for a class written in C #, its properties have only one data type and the relationship between classes and classes, but in my blog there is no configuration between them, my blog can use the existing database to

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Overview In object-oriented programming, PHP offers a series of magic methods that provide a lot of convenience for programming. The Magic method in PHP usually starts with __ (two underscores) and does not need to be displayed but is based on a specific condition. This article briefly summarizes the magic methods provided in PHP. Before you start Before summa

One advantage of the php object is that you can use magic methods that override the default behavior of a class without having to modify the external code, which makes the PHP syntax less redundant and more extensible. These methods are well identified, and they all start with a double underline (__). One advantage of PHP objects is that you can use magic methods that override the default behavior of a cl

ASP. NET has no magic-ASP. NET authentication and Identity, asp. netidentity In the previous article, I added the article management function (ASP. NET has no magic -- ASP. net mvc uses Area to develop a management module), but the management function should only be accessed by the "author". How should we control the user's access permissions? That is, when a user accesses the management function, authentic

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serialization of objects and crossdress?Serialization: $str = Serialize ($duixiang);crossdress: $duixiang = unserialize ($STR);5, __sleep () Magic Method:① the __sleep () function is automatically executed when the object is serialized;The ②__sleep () function requires the return of an array, the value in the array, the property that can be serialized, the attribute not in the array, and cannot be serialized;function __sleep () {Return Array ("name",

ASP. NET has no magic -- ASP. net mvc IoC, mvcioc The previous article introduced how MVC creates a Controller through ControllerFactory and ControllerActivator, and how the Controller completes function expansion and business execution through the template ControllerBase. The design of this series of MVC types reflects the IoC design principles everywhere. Therefore, this chapter will introduce the IoC in

valid1. When executing selection.selectallchildren (parentnode) , the content of parentnode will be highlighted and the original highlighted part will be canceled;2. Under Chrome, Selection.containsnode () constant returns false ;3. The selection type object under Ie9~11 has no Containsnode method;4. There is no selection type under ie5.5~8; About the [object Selection] and [object msselection] types under IE (More on JS

) so that it does not need to go to the database to query the user information when authenticating.Trusted: JWT is digitally signed to know if JWT has been tampered with during transmission, to ensure that the data is complete, and that the available signature algorithms are RS256 (rsa+sha-256), HS256 (hmac+sha-256), etc.JWT has two uses, one for data interaction , because JWT is signed to guarantee the integrity of the data. It is also used to carry user information for authentication .The JWT