10 recommended articles about processing instructions

This article mainly introduces the processing instructions in XML. Processing instructions are not commonly used in XML. It is enough to have a brief understanding. Friends in need can refer to "Processing Instructions (PIs)" to allow documents to contain information for applications. Directives. Directives are not part of the document's character data, but must be passed through the application." Processing instructions can be used to pass information to applications. Processing instructions can appear outside the markup anywhere in the document. Can appear in the prologue, in the document's type definition (DTD), in the text content, or after the document. Processing directives allow documents to contain instructions for processing by applications. In the XML document, there may be some non-XML format data that cannot be processed by the XML processor. We can notify other applications to process the data through processing instructions. The syntax of processing instructions (PI) is similar to XML declarations, starting with Start with? >End. A common processing instruction using style sheets is as follows: xml-styesheet herf=”hello.css” type=”text/css”? ＞At the beginning

1. Detailed explanation of the code for processing instructions in XML

Introduction: This article mainly introduces the processing instructions in XML. Processing instructions are not commonly used in XML. You can have a little understanding. Friends in need can refer to it

2. XML parsing Zend output produces XML parsing errors

Introduction: XML parsing: XML parsing Zend output produces XML parsing errors: XML parsing errors: xml processing instructions Not at the beginning of the entity: http://.../public/xml/get Row: 2, Column: 1: <?xml version="1.0"?> ^ After careful inspection, it is found that the first row is empty. After searching for a long time, I couldn't find where zend's view outputs a blank line, including initializing a new View, but I still haven't found the reason, but the first line of the website homepage is not empty. There are similar examples on the Internet, but their solution is

3. Zend output produces XML parsing error_PHP tutorial

Introduction: Zend output produces XML parsing errors. XML parsing error: The xml processing instruction is not at the beginning of the entity: http://.../public/xml/get Line: 2, Column: 1:?xml version="1.0"? ^ After careful inspection, it is found that it is the first The behavior is empty. Found

4. Zend output produces XML parsing errors

Introduction: Zend output produces XML parsing errors. XML parsing error: The xml processing instruction is not at the beginning of the entity: http://.../public/xml/get Line: 2, Column: 1:?xml version="1.0"? ^ After careful inspection, it is found that it is the first The behavior is empty. Found

5. Summary of sqlserver scripts and batch instructions

Introduction: Summary of sqlserver scripts and batch instructions , Friends who are learning sqlserver can save it

6. JavaScript Study Notes (14) Regular Expressions_Basic Knowledge

Introduction: The constructor of the RegExp class RegExp object can take one or two parameters. The first parameter is a pattern string that describes the pattern that needs to be matched. If there is a second parameter, this parameter specifies additional processing instructions. .

[Related Q&A Recommendations]:

Why does the C/C++ preprocessing directive #include not automatically include the included files only once? ?

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