Nathan,
Thanks for the suggestion, but it's still not working for me. Here's my
code:
===========
$HTML = new DOMDocument();
@$HTML->loadHTML($text);
$Elements = $HTML->getElementsByTagName("*");
for ($X = 0; $X < $Elements->length; $X++) {
$Element = $Elements->item($X);
if ($Element->tagName == "a") {
# SNIP - Do something with A tags here
} else if ($Element instanceof DOMText) {
echo $Element->nodeValue; exit;
}
}
===========
This loop never executes the instanceof part of the code. If I add:
} else if ($Element instanceof DOMNode) {
echo "foo!"; exit;
}
Then it echos "foo!" as expected. It just seems that none of the nodes in
the tree are DOMText nodes. In fact, get_class($Element) returns
"DOMElement" for every node in the tree.
Tim Gustafson
SOE Webmaster
UC Santa Cruz
tjg@xxxxxxxxxxxx
831-459-5354
________________________________
From: Nathan Nobbe [mailto:quickshiftin@xxxxxxxxx]
Sent: Wednesday, September 03, 2008 11:55 AM
To: Tim Gustafson
Cc: php@xxxxxxx; php-general@xxxxxxxxxxxxx
Subject: Re: Using DOM textContent Property
On Wed, Sep 3, 2008 at 10:03 AM, Tim Gustafson <tjg@xxxxxxxxxxxx>
wrote:
> I think you might be better off using regexp on the text
> *before* sending it through the DOM parser. Send the
> user's text through a function that searches for URLs
> and email addresses, creating proper links as they're
> found, then use the output from that to move on to your
> DOM stuff. That way, you need not create new nodes in
> your nodelist.
I think that's the way I'm going to have to go, but I was
really hoping not
to. Thanks for the suggestion!
i think i have what youre looking for Tim, take a look at this
script output
nathan@devel ~ $ php testDom.php
IN:
<?xml version="1.0" standalone="yes"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
"http://www.w3.org/TR/REC-html40/loose.dtd";>
<html><body>Test<br/><h2>quickshiftin@xxxxxxxxx<a name="bar">stuff
inside the link</a>Foo</h2><p>care</p><p>yoyser</p></body></html>
OUT:
<?xml version="1.0" standalone="yes"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
"http://www.w3.org/TR/REC-html40/loose.dtd";>
<html><body>Test<br/><h2><a
href="mailto:quickshiftin@xxxxxxxxx";>quickshiftin@xxxxxxxxx</a><a
name="bar">stuff inside the
link</a>Foo</h2><p>care</p><p>yoyser</p></body></html>
and heres the code using the DOM extension
you may have to tweak it to suit your needs, but currently i think
it does the trick ;)
<?php
$doc = new DOMDocument();
$doc->loadHTML('<html><body>Test<br><h2>quickshiftin@xxxxxxxxx<a
name="bar">stuff inside the
link</a>Foo</h2><p>care</p><p>yoyser</p></body></html>');
echo 'IN:' . PHP_EOL . $doc->saveXML() . PHP_EOL;
findTextNodes($doc->getElementsByTagName('*'),
'convertToLinkIfNecc');
echo 'OUT: ' . PHP_EOL . $doc->saveXML() . PHP_EOL;
/**
* run through a DOMNodeList, looking for text nodes. apply a
callback to
* all such text nodes that are encountered
*/
function findTextNodes(DOMNodeList $nodesToSearch, $callback) {
foreach($nodesToSearch as $curNode) {
if($curNode->hasChildNodes())
foreach($curNode->childNodes as $curChild)
if($curChild instanceof DOMText)
#echo "TEXT NODE FOUND: " . $curChild->nodeValue
. PHP_EOL;
/// todo: allow use of hook here
call_user_func($callback, $curNode, $curChild);
}
}
/**
* determine if a node should be modified, by chcking to see if a
child is a text node
* and the text looks like an email address.
* call a subordinate function to convert the text node into a
mailto anchor DOMElement
*/
function convertToLinkIfNecc(DomElement $textContainer, DOMText
$textNode) {
if( (strtolower($textContainer->nodeName) != 'a') &&
(filter_var($textNode->nodeValue, FILTER_VALIDATE_EMAIL) !==
false) ) {
convertMailtoToAnchor($textContainer, $textNode);
}
}
/**
* modify a DOMElement that has a DOMText node as a child; create a
DOMElement
* that represents and a tag, and set the value and href attirbute,
so that it
* acts as a 'mailto' link
*/
function convertMailtoToAnchor(DomElement $textContainer, DOMText
$textNode) {
$newNode = new DomElement('a', $textNode->nodeValue);
$textContainer->replaceChild($newNode, $textNode);
$newNode->setAttribute('href', "mailto:{$textNode->nodeValue}");
}
-nathan
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