note 105917 added to class.domnode

The issues around mixed content took me some experimentation to remember, so I thought I'd add this note to save others time. When your markup is something like: <div><p>First text.</p><ul><li><p>First bullet</p></li></ul></div>, you'll get XML_ELEMENT_NODEs that are quite regular. The <div> has children <p> and <ul> and the nodeValue for both <p>s yields the text you expect. But when your markup is more like <p>This is <b>bold</b> and this is <i>italic</i>.</p>, you realize that the nodeValue for XML_ELEMENT_NODEs is not reliable. In this case, you need to look at the <p>'s child nodes. For this example, the <p> has children: #text, <b>, #text, <i>, #text. In this example, the nodeValue of <b> and <i> is the same as their #text children. But you could have markup like: <p>This <b>is bold and <i>bold italic</i></b>, you see?</p>. In this case, you need to look at the children of <b>, which will be #text, <i>, because the nodeValue of <b> will not be sufficient. XML_TEXT_NODEs have no children and are always named '#text'. Depending on how whitespace is handled, your tree may have "empty" #text nodes as children of <body> and elsewhere. Attributes are nodes, but I had forgotten that they are not in the tree expressed by childNodes. Walking the full tree using childNodes will not visit any attribute nodes. ---- Server IP: 64.71.164.2 Probable Submitter: 71.116.103.211 ---- Manual Page -- http://www.php.net/manual/en/class.domnode.php Edit -- https://master.php.net/note/edit/105917 Del: integrated -- https://master.php.net/note/delete/105917/integrated Del: useless -- https://master.php.net/note/delete/105917/useless Del: bad code -- https://master.php.net/note/delete/105917/bad+code Del: spam -- https://master.php.net/note/delete/105917/spam Del: non-english -- https://master.php.net/note/delete/105917/non-english Del: in docs -- https://master.php.net/note/delete/105917/in+docs Del: other reasons-- https://master.php.net/note/delete/105917 Reject -- https://master.php.net/note/reject/105917 Search -- https://master.php.net/manage/user-notes.php