DomDocument->create

说明

domelement DomDocument->create_element ( string name )

This function returns a new instance of class DomElement. The tag name of the element is the value of the passed parameter. 本节点不会出现在文档中，除非是用例如 domnode_append_child() 函数来将其插入。

The return value is FALSE if an error occurred.

add a note User Contributed Notes

Mikael Ljungberg
04-May-2005 01:46


When creating empty nodes like xhtml:link, the output misses the closing slash. This is what I got:



<link ...>

dk
25-Nov-2003 03:58


The first example on this page is also a bit verbose. Since the DomElement class inherits/extends the DomNode class, one does not, in fact, have to get another reference to the first node. The create_element method has already given you that reference. (Also, the last line passes a string to the append_child method, instead of a DomNode object) Simplified:



<?

$new_element = $dom->create_element("new_element");

$new_element->append_child($another_element);

$oldTag->append_child($new_element);

?>

Jorrit Kronjee
05-Nov-2003 11:15


The example done by Nico Almhoedi has a small error.



Since append_child only accepts DomElement (which is an object), it should've been: 



$new_element = DomDocument->create_element("new_el");

$new_node = $existent_node->append_child($new_element);

Nico almhoedi at gmx dot de
05-Jan-2003 07:40


It's easier possible since DomNode->append_child($new_element) returns the new child as an object, so you can refer to it immediately.



To append a child to the node $existent_node:



$new_element = DomDocument->create_element("new_el");

$new_node = $existent_node->append_child("new_el");



see Manual DomNode->append_child()

greg@cabinetuk
14-Nov-2002 09:27


Its important to remember, when adding a created element to an existing node using append_child(), that if you want to then add another element to that node you have to go back and set up a DOMNode instance using DOMDocument_get_elements_by_tagname or similar before you can append another node onto it.



eg



<?

$new_element = $dom->create_element("new_element");

$oldTag->append_child($new_element);

//Go back and set up new element as DOMNode

$new_elementArray = $dom->get_elements_by_tagname("new_element");

$new_elementTag = $new_elementArray[0];//(if theres more than one use a for loop)



$new_elementTag->append_child("another_new_element");

?>

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