The code maze of PHP SOAP: tracing its file structure and class hierarchy

php editor Zimo will decrypt the code maze of PHP SOAP for you and take you to explore its file structure and class hierarchy. SOAP (Simple Object Access Protocol) is a protocol for exchanging structured information on the network. Being familiar with its code structure can help you better understand and use SOAP technology. In this article, we will delve into the file organization and class inheritance relationship of PHP SOAP to help you better master this important technology.

• SOAP client, used to create and send SOAP requests
• Inherited from SoapVar

SoapServer

• SOAP Server, used to process and respond to SOAP requests
• Inherited from SoapVar

SoapVar

• SOAP variables, used to represent data in SOAP messages
• As the base class of SoapClient and SoapServer

SoapFault

• SOAP errors, used to indicate problems in SOAP request processing

SoapHeader

• SOAP header used to transmit additional information in SOAP requests and responses

SoapParam

• SOAP parameters, used to describe the parameters in the SOAP method

SoapType

• SOAP type, used to specify the type of SOAP variable

other kind

In addition to the main class, PHP the SOAP extension also defines the following auxiliary classes:

• SoapMessage: Represents SOAP message
• SoapBinding: Represents SOAP binding mechanism
• SoapOperation: Represents SOAP operation
• SoapTransport: Represents SOAP transport mechanism

Extensions and hooks

php The SOAP extension also provides the following extensions and hooks:

SoapClient extension

• Allow custom functions and classes to be loaded on SoapClient instances

SoapServer extension

• Allow custom functions and classes to be loaded on SoapServer instances

soapclient_before_call and soapclient_after_call hooks

• Allow custom actions before and after SOAP requests are sent and received

soapserver_before_call and soapserver_after_call hooks

• Allow custom actions before and after SOAP responses are sent and received

Object diagram example

The following object diagram example shows the relationship between PHP SOAP classes:

SoapClient
 |
  -- SoapVar
 ||
 | -- SoapFault
 ||
 | -- SoapHeader
 ||
 | -- SoapParam
 ||
 | -- SoapType
 |
 --SoapServer
 |
  -- SoapVar

Summarize

The PHP SOAP extension provides the classes and functionality needed to build SOAP clients and servers. Its file structure and class hierarchy are well organized, allowing developers to easily create and process SOAP requests. Extensions and hooks provide the ability to further customize SOAP behavior.

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