(PHP 5, PHP 7)

DOMDocument::createCommentCreate new comment node


public DOMDocument::createComment ( string $data ) : DOMComment

This function creates a new instance of class DOMComment. 此节点出现在文档中,除非是用诸如 DOMNode->appendChild() 等函数来将其插入。



The content of the comment.


The new DOMComment or FALSE if an error occurred.


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User Contributed Notes 2 notes

php dot sirlancelot at spamgourmet dot com
10 years ago
To prevent a parser error when the comment string would contain the character sequence "--", do this:


= '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.
capps at solareclipse dot net
13 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.
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