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DOMDocument::saveHTML() Method Not Accepting Single Argument

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  DOMDocument::saveHTML() Method Not Accepting Single Argument SMH <garyconditswellhungrelative@yahooDOT.com> - 2012-08-27 04:25 +0000
    Re: DOMDocument::saveHTML() Method Not Accepting Single Argument Adam Harvey <usenet@adamharvey.name> - 2012-08-27 05:09 +0000
      Re: DOMDocument::saveHTML() Method Not Accepting Single Argument SMH <garyconditswellhungrelative@yahooDOT.com> - 2012-08-27 06:07 +0000

#6877 — DOMDocument::saveHTML() Method Not Accepting Single Argument

Using PHP 5.2

The DOMDocument object method saveHTML() explains that I can pass a DOMNode 
object as an optional parameter and get the string output of just the node.

     http://www.php.net/manual/en/domdocument.savehtml.php

I have verified that the object I am passing to the method is a DOMElement 
object, a type of DOMNode.

I keep getting the warning:

   Warning:  DOMDocument::saveHTML() expects exactly 0 parameters, 
     1 given in <php script document>



Is this a bug?

Commentary below does not even address the use of the method with the 
optional argument.


====

What do I want to do??

I have DOM elements with mostly one child node of type DOMText representing 
file names, and I use 'textContent' property to get the string representing 
the file name.

However, some filenames contained characters, like '&', and I had to use 
method DOMDocument:createEntityReference() to append them as child nodes to 
the element.

But when I try to retrieve with 'textContent' property, only child nodes of 
type DOMText are returned concatenated, not entity references.

I figured saveHTML([DOMElement]) might fix this.

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#6879

On Mon, 27 Aug 2012 04:25:49 +0000, SMH wrote:
> Using PHP 5.2
> 
> I keep getting the warning:
> 
>    Warning:  DOMDocument::saveHTML() expects exactly 0 parameters,
>      1 given in <php script document>
> 
> 
> 
> Is this a bug?

The manual page you linked to has a changelog, which indicates that the 
parameter was added in PHP 5.3.6.

> However, some filenames contained characters, like '&', and I had to use
> method DOMDocument:createEntityReference() to append them as child nodes
> to the element.

Why? If you're adding the text as text nodes, there's no need to 
explicitly create entity references: $doc->createTextNode('foo&bar'); 
results in a valid text node which will be saved as "foo&amp;bar" when 
save() or saveXML() are called.

> But when I try to retrieve with 'textContent' property, only child nodes
> of type DOMText are returned concatenated, not entity references.

Entity references aren't text content, at least as far as libxml and PHP 
are concerned.

> I figured saveHTML([DOMElement]) might fix this.

It may, but not until you use a version of PHP that supports it. :)

Adam

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#6880

Adam Harvey <usenet@adamharvey.name> wrote on Mon 27 Aug 2012 08:09:11a

> On Mon, 27 Aug 2012 04:25:49 +0000, SMH wrote:
>> Using PHP 5.2
>> 
>> I keep getting the warning:
>> 
>>    Warning:  DOMDocument::saveHTML() expects exactly 0 parameters,
>>      1 given in <php script document>
>> 
>> 
>> 
>> Is this a bug?
> 
> The manual page you linked to has a changelog, which indicates that the 
> parameter was added in PHP 5.3.6.
> 
>> However, some filenames contained characters, like '&', and I had to use
>> method DOMDocument:createEntityReference() to append them as child nodes
>> to the element.
> 
> Why? If you're adding the text as text nodes, there's no need to 
> explicitly create entity references: $doc->createTextNode('foo&bar'); 
> results in a valid text node which will be saved as "foo&amp;bar" when 
> save() or saveXML() are called.
> 
>> But when I try to retrieve with 'textContent' property, only child nodes
>> of type DOMText are returned concatenated, not entity references.
> 
> Entity references aren't text content, at least as far as libxml and PHP 
> are concerned.
> 
>> I figured saveHTML([DOMElement]) might fix this.
> 
> It may, but not until you use a version of PHP that supports it. :)

Thanks, Adam.

I think I resorted to using it because of some error or other warning I got 
with special HTML characters, and it probably applied to THAT situation, but 
clearly not to THIS situation;  over-thinking, I guess.

Your explanations resulted in warning-free code.

I'll remember to read the changelog too to make sure that the syntax applies 
to the current version.  I use 5.2 because I think that is the latest 
version produced as a ready binary for Win 7 running Apache 2.2, but then 
again, I could certainly even be wrong on that as well.  :)

> Adam

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