To prevent a parser error when the comment string would contain the character sequence "--", do this:
<?php
$CommentString = 'This contains -- some weird -- characters.';
$CommentNode = $DomDocument->createComment(
str_replace('--', '-'.chr(194).chr(173).'-', $CommentString)
);
?>
This will insert a Soft Hyphen in between the two hyphens which will not cause the parser to error out.
DOMDocument::createComment
(PHP 5, PHP 7)
DOMDocument::createComment — Create new comment node
Descrierea
This function creates a new instance of class DOMComment. Acest nod nu va apărea în document dacă nu este inserat cu DOMNode::appendChild() de exemplu.
Parametri
-
data -
The content of the comment.
Valorile întoarse
The new DOMComment or false if an error occurred.
A se vedea și
- DOMNode::appendChild() - Adds new child at the end of the children
- DOMDocument::createAttribute() - Create new attribute
- DOMDocument::createAttributeNS() - Create new attribute node with an associated namespace
- DOMDocument::createCDATASection() - Create new cdata node
- DOMDocument::createDocumentFragment() - Create new document fragment
- DOMDocument::createElement() - Create new element node
- DOMDocument::createElementNS() - Create new element node with an associated namespace
- DOMDocument::createEntityReference() - Create new entity reference node
- DOMDocument::createProcessingInstruction() - Creates new PI node
- DOMDocument::createTextNode() - Create new text node
add a note
User Contributed Notes 2 notes
php dot sirlancelot at spamgourmet dot com ¶
15 years ago
capps at solareclipse dot net ¶
17 years ago
Use caution: this function does NOT escape, encode, or otherwise change the contents of the string.
This means that if your string contains two hyphens in a row (--), that will *end* the comment, which can easily create invalid XML when the document is serialized.
