A collection of commonly used functions in PHP XML (more detailed) _php tips

1. DOM function

A, Domdocument->load ()
Function: Load XML file
Usage: domdocument->load (string filename)
Parameters: Filename,xml file;
Return: Returns TRUE if successful and FALSE if failed.

B, Domdocument->loadxml ()
function: Load XML code
Usage: Domdocument->loadxml (string source)
Parameters: source XML code;
Return: Returns TRUE if successful and FALSE if failed.

C, Domdocument->getelementsbytagname_r ()
Function: Find by tag name
Usage: Domdocument->getelementsbytagname_r (string name)
Parameters: Name, label names;
Returns: The new Domnodelist object.

D, Domdocument->getelementbyid ()
Function: Find by tag name
Usage: Domdocument->getelementbyid (string elementid)
Parameters: ElementID, tag ID;
Returns: The new Domnodelist object.

E, domdocument->createelement_x_x ()
Function: Create a label
Usage: domdocument->createelement_x_x (string name [, String value])
Argument: Name, tag name, value, only;
Returns: The new DomElement object failed to false.

F, Domdocument->createtextnode ()
Function: Create a text node
Usage: Domdocument->createtextnode (string content)
Parameters: content, contents;
Returns: The new Domtext object failed to false.

H, Domdocument->createcdatasection ()
Function: Create a CDATA node
Usage: domdocument->createcdatasection (string data)
Parameters: data, content;
Returns: The new Domcdatasection object failed to false.

I, Domdocument->createattribute ()
Function: Create label properties
Usage: Domdocument->createattribute (string name)
Parameters: Name, attribute names;
Returns: The new Domattr object failed to false.

J, Domdocument->validate ()
Function: Validate XML code
Usage: domdocument->validate ()
Parameters: None
Return: Returns TRUE if successful and FALSE if failed.

K, Domdocument->save ()
Function: Save XML code to XML file
Usage: domdocument->save (string filename)
Parameters: Filename,xml file;
return: The XML character length was successfully returned and failed to return false.

L, Domdocument->savexml ()
Function: Save XML code
Usage: domdocument->savexml ([Domnode node [, int options]])
Parameters: Node,domnode;
Return: Successfully returned XML, failure returns false.

M, Domelement->hasattribute ()
Function: Detect whether a property exists
Usage: Domelement->hasattribute (string name)
Parameters: Name, attribute names;
Return: Returns TRUE if successful and FALSE if failed.

N, Domelement->getattribute ()
Function: Get property value
Usage: Domelement->getattribute (string name)
Parameters: Name, attribute names;
Return: Property value returned successfully, failure returned empty.

O, Domelement->getattribute ()
Function: Get property value
Usage: Domelement->getattribute (string name)
Parameters: Name, attribute names;
Return: Property value returned successfully, failure returned empty.

P, Domelement->setattribute ()
Function: Set property value
Usage: Domelement->setattribute (string name, String value)
Parameters: Name, attribute name; value, property value
Return: Returns TRUE if successful and FALSE if failed.

Q, Domnode->appendchild ()
Role: Link child nodes to parent node
Usage: domnode->appendchild (Domnode newnode)
Parameters: NewNode, new node;
Return: The new node was successfully returned and the failure returned empty.

R, Domnode->hasattributes ()
Function: Verify that there are attributes
Usage: domnode->hasattributes ()
Parameters: None
Return: Returns TRUE if successful and FALSE if failed.

S, Domnode->haschildnodes ()
Action: Detects whether there are child nodes
Usage: domnode->haschildnodes ()
Parameters: None
Return: Returns TRUE if successful and FALSE if failed.

T, Domnode->insertbefore ()
Role: The node inserted into the DOM tree, position in front of a node
Usage: Domnode->insertbefore (Domnode newnode [, Domnode Refnode])
Parameters: NewNode, new Node;refnode, referencing node
Return: The new node was successfully returned and the failure returned empty.

U, Domnode->removechild ()
function: Delete child nodes
Usage: domnode->removechild (domnode OldNode)
Parameters: OldNode, child nodes;
Return: The child node was successfully returned and the failure returned empty.

V, Domnode->replacechild ()
Role: Updating child nodes
Usage: domnode->replacechild (domnode newnode, Domnode OldNode)
Parameters: NewNode, new Node;oldnode, old node
Return: Successfully returned OldNode, failed to return empty.

————————-Domnode Property ———————————— –

A, Domnode->nodetype
Function: Get node type

B, Domnode->nodename
Function: Get node name

C, Domnode->nodevalue
Function: Get node content

D, Domnode->textcontent
Function: Get node content

E, Domnode->parentnode
Function: Get node parent node

F, Domnode->childnodes
function: Get nodes of node ideas

G, Domnode->firstchild
Function: Gets the first child node of a node

H, Domnode->lastchild
Function: Gets the last child node of a node

2, XMLReader

A, Xmlreader::xml
Function: Load XML string
Usage: xmlreader::xml (string source [, string encoding [, int options]])
Parameters: Source,xml string;encoding,document encoding or NULL
Return: Returns TRUE if successful and FALSE if failed.

B, Xmlreader::open
Function: Load XML file
Usage: xmlreader::open (string URL [, string encoding [, int options]])
Parameters: URL, link to XML; encoding,document encoding or NULL
Return: Returns TRUE if successful and FALSE if failed.

C, Xmlreader::read
Function: Read XML to move the parser forward to the next tag
Usage: xmlreader::read (), traversing the entire document in the while loop
Parameters: NULL
Return: Returns TRUE if successful and FALSE if failed.

D, Xmlreader::getattribute
Function: Get Properties
Usage: Xmlreader::getattribute (string name)
Parameters: Name, attribute names
Returns: Returns the property value if successful, and returns FALSE if it fails.

E, Xmlreader::isvalid
Role: Verify that the XML is legitimate
Usage: xmlreader::isvalid ()
Parameters: None
Return: Returns True if successful and FALSE if failed.

F, Xmlreader::movetoattribute
Function: Move focus to the attribute you refer to
Usage: Xmlreader::movetoattribute (string name)
Parameters: Name, attribute names
Return: Returns True if successful and FALSE if failed.

G, Xmlreader::movetofirstattribute
Function: Move focus to first attribute
Usage: Xmlreader::movetofirstattribute ()
Parameters: None
Return: Returns True if successful and FALSE if failed.

H, Xmlreader::movetonextattribute
Function: Move focus to the next property
Usage: Xmlreader::movetonextattribute ()
Parameters: None
Return: Returns True if successful and FALSE if failed.

I, xmlreader::movetoelement
Function: Move focus to the parent node's current properties
Usage: xmlreader::movetoelement ()
Parameters: None
Return: Returns True if successful and FALSE if failed.

J, Xmlreader::close
Function: Turn off XML input
Usage: xmlreader::close ()
Parameters: None
Return: Returns True if successful and FALSE if failed.

———————-Constant ———————— –

Xmlreader::none = 0;
Xmlreader::element = 1;
Xmlreader::attribute = 2;
Xmlreader::text = 3;
Xmlreader::cdata = 4;
Xmlreader::entity_ref = 5;
Xmlreader::entity = 6;
XMLReader::P i = 7;
Xmlreader::comment = 8;
XMLReader::D oc = 9;
XMLReader::D oc_type = 10;
XMLReader::D oc_fragment = 11;
Xmlreader::notation = 12;
Xmlreader::whitespace = 13;
Xmlreader::significant_whitespace = 14;
Xmlreader::end_element = 15;
xmlreader::end_entity = 16;
Xmlreader::xml_declaration = 17;
XMLREADER::LOADDTD = 1;
XMLReader::D efaultattrs = 2;
Xmlreader::validate = 3;
Xmlreader::subst_entities = 4;

———————— Property —————————— –

A, xmlreader->attributecount;
Role: Number of attributes

b, Xmlreader->baseuri;
Function: URL of node

C, xmlreader->depth;
Function: Number of layers of node tree

D, Xmlreader->hasattributes;
Function: Detect if there are attributes

E, Xmlreader->hasvalue;
Function: Whether there is a value

F, xmlreader->isemptyelement;
Function: Whether it is an empty label

G, Xmlreader->localname;
Function: Label Internal Ming

h, Xmlreader->name;
Role: Label name

I, Xmlreader->nodetype;
Function: Node type

J, Xmlreader->value;
Function: Node text content

3, XMLWriter

A, Xmlwriter::openuri
Role: Create a new XmlWriter from the URL output code
Usage: Xmlwriter::openuri (string uri)
Parameters: URL XML address
Return: Returns True if successful and FALSE if failed.

B, xmlwriter::setindentstring
Function: Set indent characters
Usage: xmlwriter::setindentstring (string indentstring)
Parameters: Indentstring Indent characters
Return: Returns True if successful and FALSE if failed.

C, xmlwriter::setindent
Function: Set indent switch
Usage: xmlwriter::setindent (bool indent)
Parameters: Indent indentation or not
Return: Returns True if successful and FALSE if failed.

D, Xmlwriter::startdocument
Function: Set document Start label
Usage: xmlwriter::startdocument ([String version [, string encoding [, string standalone]]])
Parameters: version, edition; encoding, coding; standalone, Independent
Return: Returns True if successful and FALSE if failed.

E, xmlwriter::enddocument
Function: Set end of document tag
Usage: xmlwriter::enddocument ()
Parameters: None
Return: Returns True if successful and FALSE if failed.

F, Xmlwriter::startdtd
Function: Set DTD start tag
Usage: XMLWRITER::STARTDTD (string QualifiedName [, String publicid [, String SystemID]])
Parameters: QualifiedName, name; Publicid,piublic;systemid,system
Return: Returns True if successful and FALSE if failed.

G, XMLWRITER::ENDDTD
Role: Set DTD end tag
Usage: XMLWRITER::ENDDTD ()
Parameters: None
Return: Returns True if successful and FALSE if failed.

H, Xmlwriter::startelement
Function: Set start tag
Usage: xmlwriter::startelement (string name)
Parameters: Name, label names
Return: Returns True if successful and FALSE if failed.

I, xmlwriter::endelement
Function: Set end tag
Usage: xmlwriter::endelement ()
Parameters: None
Return: Returns True if successful and FALSE if failed.

J, Xmlwriter::startcdata
Function: Set start tag
Usage: xmlwriter::startcdata ()
Parameters: None
Return: Returns True if successful and FALSE if failed.

K, Xmlwriter::endcdata
Function: Set end tag
Usage: xmlwriter::endcdata ()
Parameters: None
Return: Returns True if successful and FALSE if failed.

L, Xmlwriter::writeattribute
Function: Write Tag Properties
Usage: Xmlwriter::writeattribute (string name, String value)
Parameters: Name, attribute name; value, property value
Return: Returns True if successful and FALSE if failed.

M, xmlwriter::writeelement
Function: Write Tag Properties
Usage: xmlwriter::writeelement (Resource XMLWriter, string name, string content)
Parameters: Xmlwriter,xml resource; name, tag name; value, text value
Return: Returns True if successful and FALSE if failed.

N, Xmlwriter::writecdata
Function: Write Tag Properties
Usage: Xmlwriter::writecdata (resource XMLWriter, string content)
Parameters: Xmlwriter,xml resource; value, text value
Return: Returns True if successful and FALSE if failed.

O, Xmlwriter::text
Function: Write text
Usage: Xmlwriter::text (string content)
Parameters: Content, text value
Return: Returns True if successful and FALSE if failed.

P, Xmlwriter::flush
Function: Empty cache
Usage: Xmlwriter::flush ()
Parameters: None
Return: Returns True if successful and FALSE if failed.