I have two files:
mainpage.html and recordinput.php
I need get a div's innerhtml from the mainpage.html in my php file.
I have copied the code here:
in my php file, I have
$dochtml = new DOMDocument();
//libxml_use_internal_errors(true);
$dochtml->loadHTMLFile("mainpage.html");
$div = $dochtml->getElementById('div2');
$div2html = get_inner_html($div);
echo "store information as: ".$div2html;
function get_inner_html(DOMNode $elem )
{
$innerHTML = " ";
$children = $elem->childNodes;
foreach ($children as $child)
{
$innerHTML .= $elem->ownerDocument->saveHTML( $child );
}
echo "function return: ".$innerHTML."<br />";
return $innerHTML;
}
The return is just empty. Any body helps me? I have spent two days on this. I feel like the problem is in here:
$dochtml->loadHTMLFile("mainpage.html");
Thanks
PHP DOMDocument has already provided the function to retrieve content between your selectors. Here is how you do it
$div = $dochtml->getElementById('div2')->nodeValue;
So you don't need to make your own function.
If you're looking to get the div contents including all nested tags then you can do it like this:
echo $div->ownerDocument->saveHTML($div);
Example: http://3v4l.org/GCbJk
Note that this includes the div2 tag itself, which you could easily then strip off.
Related
I'm trying to build a personal project of mine, however I'm a bit stuck when using the Simple HTML DOM class.
What I'd like to do is scrape a website and retrieve all the content, and it's inner html, that matches a certain class.
My code so far is:
<?php
error_reporting(E_ALL);
include_once("simple_html_dom.php");
//use curl to get html content
$url = 'http://www.peopleperhour.com/freelance-seo-jobs';
$html = file_get_html($url);
//Get all data inside the <div class="item-list">
foreach($html->find('div[class=item-list]') as $div) {
//get all div's inside "item-list"
foreach($div->find('div') as $d) {
//get the inner HTML
$data = $d->outertext;
}
}
print_r($data)
echo "END";
?>
All I get with this is a blank page with "END", nothing else outputted at all.
It seems your $data variable is being assigned a different value on each iteration. Try this instead:
$data = "";
foreach($html->find('div[class=item-list]') as $div) {
//get all divs inside "item-list"
foreach($div->find('div') as $d) {
//get the inner HTML
$data .= $d->outertext;
}
}
print_r($data)
I hope that helps.
I think, you may want something like this
$url = 'http://www.peopleperhour.com/freelance-seo-jobs';
$html = file_get_html($url);
foreach ($html->find('div.item-list div.item') as $div) {
echo $div . '<br />';
};
This will give you something like this (if you add the proper style sheet, it'll be displayed nicely)
I have a page test.php in which I have a list of names:
name1: 992345
name2: 332345
name3: 558645
name4: 434544
In another page test1.php?id=name2 and the result should be:
332345
I've tried this PHP code:
<?php
libxml_use_internal_errors(true);
$doc = new DOMDocument();
$doc->loadHTMLFile("/test.php");
$xpath = new DOMXpath($doc);
$elements = $xpath->query("//*#".$_GET["id"]."");
if (!is_null($elements)) {
foreach ($elements as $element) {
$nodes = $element->childNodes;
foreach ($nodes as $node) {
echo $node->nodeValue. "\n";
}
}
}
?>
I need to be able to change the name with GET PHP method in test1.pdp?id=name4
The result should be different now.
434544
is there another way, becose mine won't work?
Here is another way to do it.
<?php
libxml_use_internal_errors(true);
/* file function reads your text file into an array. */
$doc = file("test.php");
$id = $_GET["id"];
/* Show your array. You can remove this part after you
* are sure your text file is read correct.*/
echo "Seeking id: $id<br>";
echo "Elements:<pre>";
print_r($doc);
echo "</pre>";
/* this part is searching for the get variable. */
if (!is_null($doc)) {
foreach ($doc as $line) {
if(strpos($line,$id) !== false){
$search = $id.": ";
$replace = '';
echo str_replace($search, $replace, $line);
}
}
} else {
echo "No elements.";
}
?>
There is a completely different way to do this, using PHP combined with JavaScript (not sure if that's what you're after and if it can work with your app, but I'm going to write it). You can change your test.php to read the GET parameter (it can be POST as well, you'll see), and according to that, output only the desired value, probably from the associative array you have hard-coded in there. The JavaScript approach will be different and it would involve making a single AJAX call instead of DOM traversing using PHP.
So, in short: AJAX call to test.php, which then output the desired value based on the GET or POST parameter.
jQuery AJAX here; native JS tutorial here.
Just let me know if this won't work for your app, and I'll delete my answer.
I have the following code that replaces all tags on a page and adds the nCode image resizer to it. The code is as follows:
function ncode_the_content($content) {
return preg_replace("/<img([^`|>]*)>/im", "<img onload=\"NcodeImageResizer.createOn(this);\"$1>", $content); }
}
What I need to do is make it so that if an image has the class of "noresize" it doesn't do the preg_match.
I have only managed to get it so that if there is the "noresize" class anywhere on the page it stops resizing all images instead of just the one with the correct class.
Any suggestions?
UPDATE:
Am I even remotely in the right ballpark with this?
function ncode_the_content($content) {
//Load the HTML page
$html = file_get_contents($content);
//Parse it. Here we use loadHTML as a static method
//to parse the HTML and create the DOM object in one go.
#$dom = DOMDocument::loadHTML($html);
//Init the XPath object
$xpath = new DOMXpath($dom);
//Query the DOM
$linksnoresize = $xpath->query( 'img[#class = "noresize"]' );
$links = $xpath->query( 'img[]' );
//Display the results as in the previous example
foreach($links as $link){
echo $link->getAttribute('onload'), 'NcodeImageResizer.createOn(this);';
}
foreach($linksnoresize as $link){
echo $link->getAttribute('onload'), '';
}
}
Here's some untested code:
$dom = DOMDocument::loadHTML($content);
$images = $dom->getElementsByTagName("img");
foreach ($images as $image) {
if (!strstr($image->getAttribute("class"), "noresize")) {
$image->setAttribute("onload", "NcodeImageResizer.createOn(this);");
}
}
But, if it were me, I would eschew any such inline event handler and instead just find the appropriate elements with Javascript.
I ended up just using pure CSS and adding a around the images I didn't want to be resized. Forced the width and height of that div back to auto and then removed the warning message that was displayed above them. Seems to work fine. Thanks for your help :)
I've searched around for solutions to this question, but each one i find, and try doesn't work.
I'm trying to grab the content of a div from a forum topic.
I've tried using preg_match and that only displayed "Array" then I tried using this method
$html = file_get_contents("http://www.lcs-server.co.uk/forum/index.php/topic,$id_topic");
$dom = new DOMDocument;
$dom->loadHTML($html);
$element = $dom->getElementById("msg_$id_msg");
var_dump($element);
This will show "object(DOMElement)#1 (0) { } "
The $id_topic and $id_msg are defined above this code, taken from the forum database. I did try taking the message from the forum database, but it displayed BB code tags, I'd like it to grab the post content, and display it in HTML, as it's displayed on the forum post itself.
This is the code I'm using now and giving me "Fatal error: Cannot redeclare DOMinnerHTML()"
$html = file_get_contents("http://www.lcs-server.co.uk/forum/index.php/topic,$id_topic");
$dom = new DOMDocument;
$dom->loadHTML($html);
$domelement = $dom->getElementById("msg_$id_msg");
foreach ($domelement as $element)
{
echo DOMinnerHTML($element);
}
function DOMinnerHTML($DOMelement)
{
$innerHTML = "";
$children = $DOMelement->childNodes;
foreach ($children as $child)
{
$tmp_dom = new DOMDocument();
$tmp_dom->appendChild($tmp_dom->importNode($child, true));
$innerHTML.=trim($tmp_dom->saveHTML());
}
return $innerHTML;
}
getElementById returns a DOM node object. It does not return the HTML of the node. For that, you have to get the node's "innerHTML". This properly is not officially supported by PHP's dom object for some reason, but can be faked using this answer: How to get innerHTML of DOMNode?
I want to replace all <span> tags with <p> using phpquery. What is wrong with my code? It finds the span but the replaceWith function is not doing anything.
$event = phpQuery::newDocumentHTML(file_get_contents('event.html'));
$formatted_event = $event->find('span')->replaceWith('<p>');
This documentation indicates this is possible:
http://code.google.com/p/phpquery/wiki/Manipulation#Replacing
http://api.jquery.com/replaceWith/
This is the html that gets returned with and without ->replaceWith('<p></p>') in the code:
<span class="Subhead1">Event 1<br></span><span class="Subhead2">Event 2<br>
August 12, 2010<br>
2:35pm <br>
Free</span>
If you dont mind a plain DOMDocument solution (DOMDocument is used unter the hood of phpQuery to parse the HTML fragments), I did something similiar a while ago. I adapted the code to do what you need:
$document = new DOMDocument();
// load html from file
$document->loadHTMLFile('event.html');
// find all span elements in document
$spanElements = $document->getElementsByTagname('span');
$spanElementsToReplace = array();
// use temp array to store span elements
// as you cant iterate a NodeList and replace the nodes
foreach($spanElements as $spanElement) {
$spanElementsToReplace[] = $spanElement;
}
// create a p element, append the children of the span to the p element,
// replace span element with p element
foreach($spanElementsToReplace as $spanElement) {
$p = $document->createElement('p');
foreach($spanElement->childNodes as $child) {
$p->appendChild($child->cloneNode(true));
}
$spanElement->parentNode->replaceChild($p, $spanElement);
}
// print innerHTML of body element
print DOMinnerHTML($document->getElementsByTagName('body')->item(0));
// --------------------------------
// Utility function to get innerHTML of an element
// -> "stolen" from: http://www.php.net/manual/de/book.dom.php#89718
function DOMinnerHTML($element) {
$innerHTML = "";
$children = $element->childNodes;
foreach ($children as $child)
{
$tmp_dom = new DOMDocument();
$tmp_dom->appendChild($tmp_dom->importNode($child, true));
$innerHTML.=trim($tmp_dom->saveHTML());
}
return $innerHTML;
}
Maybe this can get you in the right direction on how to do the replacement in phpQuery?
EDIT:
I gave the jQuery documentation of replaceWith another look, it seems to me, that you have to pass in the whole html fragment which you want to be your new, replaced content.
This code snipped worked for me:
$event = phpQuery::newDocumentHTML(...);
// iterate over the spans
foreach($event->find('span') as $span) {
// make $span a phpQuery object, otherwise its just a DOMElement object
$span = pq($span);
// fetch the innerHTMLL of the span, and replace the span with <p>
$span->replaceWith('<p>' . $span->html() . '</p>');
}
print (string) $event;
I couldnt find any way to do this with chained method calls in one line.
Wont str_replace do a better job at this? Its faster and easier to debug.
Always take into consideration that external libraries may have bugs:)
$htmlContent = str_replace("<span", "<p", $htmlContent);
$htmlContent = str_replace("</span>", "</p>", $htmlContent);
Try;
$formatted_event = $event->find('span')->replaceWith('<p></p>');
Did you try:
$formatted_event = $event->find('span')->replaceWith('p');
You could actually use the wrap function
$event = phpQuery::newDocumentHTML(...);
// iterate over the spans
foreach($event->find('span') as $span) {
// make $span a phpQuery object, otherwise its just a DOMElement object
$span = pq($span);
// wrap the span with <p>
$span->wrap('<p></p>');
}
print (string) $event;