(PHP 5, PHP 7, PHP 8)

DOMDocument::createCommentCreate new comment node


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

This function creates a new instance of class DOMComment. Questo nodo non verrĂ  mostrato nel documento a meno che venga inserito con, es. DOMNode::appendChild().

Elenco dei parametri


The content of the comment.

Valori restituiti

The new DOMComment.

Log delle modifiche

Versione Descrizione
8.1.0 In case of an error, a DomException is thrown now. Previously, false was returned.

Vedere anche:

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User Contributed Notes 2 notes

php dot sirlancelot at spamgourmet dot com
12 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
15 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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