Remove part of string from array value in PHP - php

I have the following code snippet which essentially parses my blog site and store some information as variables:
global $articles;
$items = $html->find('div[class=blogpost]');
foreach($items as $post) {
$articles[] = array($post->children(0)->innertext,
$post->children(1)->first_child()->outertext);
}
foreach($articles as $item) {
echo $item[0];
echo $item[1];
echo "<br>";
}
The above code outputs as follows:
Title of blog post 1 <script type="text/javascript">execute_function(3,'')</script><a href="http://www.example.com/cool_news" id="963" target="_blank" >Click here for news</a> <img src="/news.gif" width="12" height="12" title="validated" /><span class="title">
Title of blog post 2 <script type="text/javascript">execute_function(3,'')</script><a href="http://www.example.com/neato" id="963" target="_blank" >Click here for neato</a> <img src="/news.gif" width="12" height="12" title="validated" /><span class="title">
Title of blog post 3 <script type="text/javascript">execute_function(3,'')</script><a href="http://www.example.com/lame" id="963" target="_blank" >Click here for lame</a> <img src="/news.gif" width="12" height="12" title="validated" /><span class="title">
with $item[0] containing "Title of blog post X" and $item[1] containing the rest.
What I want to do is parse $item[1] and retain only the URL contained within it as a separate variable. Perhaps I am not phrasing my question correctly, but I cannot find anything that can help me figure this out.
Can anyone help me?

If you were to parse $item[1] into whatever DOM crawler object you were using for $html, you could use the following XPath
$item[1]->find('//a[0]/#href');
which will return
href="http://www.example.com/cool_news"
Then extract the url however you want, with PHP or refine the XPath query. Not sure what the XPath would be to get the value, perhaps someone might be able to expand on that one.
EDIT: Seeing as you using Simple DOM Parser, try the following
$blogItemHtml = new simple_html_dom();
$blogItemHtml->load($item[1]);
$anchors = $blogItemHtml->find('a');
echo $anchors[0]->href; // "http://www.example.com/cool_news"

Related

how to store html string in php variable using a foreach loop

I'm new to php. This is in relation to wordpress and I'm terribly confused.
Basically, I am passing an array of names from another file (via ajax and json) and into a php function. This function will loop through each name and generate html code to display to the page with an image. I would like to store this htmlcode as a string into a variable to be used in another part of my app (specifically to append it to a post to update in real time, but that's a separate issue).
My ajax response is showing the result I want, just not stored in a string. It is also saying the path to my images can't be found despite the path being correct. It seems like I'm either concatenating something wrong or putting quotes in the wrong place, or something else. I want to store all the html generated in $html_string (which I know won't load my app correctly as I'm displaying the code here, it was just the last thing I've tried so I left it in there).
My code:
<?php
add_action('wp_ajax_nopriv_test_function', 'test_function');
add_action('wp_ajax_test_function', 'test_function');
function test_function() {
if ( isset($_POST) ) {
$nameData = $_POST['nameData'];
//Strip any double escapes then use json_decode to create an array.
$nameDecode = json_decode(str_replace('\\', '', $_POST['nameData']));
// Anything outputted will be returned in the response
foreach ($nameDecode as $key => $name) {
$html_string .= ?> <img src="<?php bloginfo('template_directory');?>/images/baseball/team0.jpg"> <p> <?php echo $name ?> <p /> '
<?php ' }
echo json_encode($html_string);
// print_r($html_string);
}
die();
} ?>
Current output:
ajax success! <img src="http://card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg"> <p> Eleanora <p />
<img src="http://card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg"> <p> Eleanora <p />
<img src="http://card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg"> <p> george <p />
<img src="http://card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg"> <p> george <p />
<img src="http://card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg"> <p> george <p />
null
card-store.local/:1 GET http://card-store.local/%22http:/card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg/ 404 (Not Found)
Desired output:
$html_string = '<img src="http://card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg"> <p> Eleanora <p />
<img src="http://card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg"> <p> Eleanora <p />
<img src="http://card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg"> <p> george <p />
<img src="http://card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg"> <p> george <p />
<img src="http://card-store.local/wp-content/themes/card-store-theme/images/baseball/team0.jpg"> <p> george <p />';
How can I achieve this?
This is how concatenation with multi variables in php works
$html_string .= '<img src="'.bloginfo('template_directory').'"/images/baseurl/team0.jpg <p>'.$name.'</p>';
This may help you
php concatenation
You can try this
foreach ($nameDecode as $key => $name) {
$html_string .= '<img src="'.bloginfo('template_directory').'"/images/baseball/team0.jpg"> <p>'.$name.' <p />';
}

Grabbing an attribute with DOMXPath

i know there are lots of way to grabbing an attribute.
this is my html result :
<li class="result">
<a class="block_container" href="**FIRST**">
<img alt="changeable text" src="**SOME LINK**" border="0">
</a>
</li>
<li class="result">
<a class="block_container" href="**SECOND**">
<img alt="changeable text" src="**SOME LINK**" border="0">
</a>
</li>
//and many like this ...
i can grab (href) but i have many of this attribute !
i used DOMXPath query to help me choose grab first href or second href with item number :
$a = $xpath->query("//li[#class='block_container']/a");
echo $text = $a->item(**MY ITEM NUMBER**)->nodeValue;
but it doesn't work !
can you help me grab href and src with item number ?
if you want a.href
$hrefs = $xpath->query("//li/a[#class='block_container']/#href");
foreach($hrefs as $href) {
echo $href->nodeValue ."<br>\n";
}
and if you want outerHTML of image tag
$imgs = $xpath->query("//li/a[#class='block_container']/img");
foreach($imgs as $img) {
echo $dom->saveHTML($img) ."<br>\n";
}
demo on eval.in

DOMDocument with php

i want replace all images on my html but the code replace one and escaping one and so on
i use DOMDocument to replace images on my content and i use the next code the problem is the code escaping image
for example
1 2 3 4 images the code replace one and three and escaping tow and four and so on
$dom = new \DOMDocument();
$dom->loadHTML("data"));
$dom->preserveWhiteSpace = true;
$count = 1;
$images = $dom->getElementsByTagName('img');
foreach ($images as $img) {
$src = $img->getAttribute('src');
$newsrc = $dom->createElement("newimg");
$newsrc->nodeValue = $src;
$newsrc->setAttribute("id","qw".$count);
$img->parentNode->replaceChild($newsrc, $img);
$count++;
}
$html = $dom->saveHTML();
return $html;
the html code is
<p><img class="img-responsive" src="http://www.jarofquotes.com/img/quotes/86444b28aa86d706e33246b823045270.jpg" alt="" width="600" height="455" /></p>
<p> </p>
<p>some text</p>
<p> </p>
<p><img class="img-responsive" src="http://40.media.tumblr.com/c0bc20fd255cc18dca150640a25e13ef/tumblr_nammr75ACv1taqt2oo1_500.jpg" alt="" width="480" height="477" /></p>
<p> </p>
<p><span class="marker"><img class="img-responsive" src="http://wiselygreen.com/wp-content/uploads/green-living-coach-icon.png" alt="" width="250" height="250" /><br /><br /></span></p>
i want output html replace all images with
<newimg>Src </newimg>
Ok, I couldn't find a dupe suitable for PHP, so I am answering this one.
The issue you are facing is that NodeLists returned by getElementsByTagName() are live list. That means, when you do the call to replaceChild(), you are altering the NodeList you are currently iterating.
Let's assume we have this HTML:
$html = <<< HTML
<html>
<body>
<img src="1.jpg"/>
<img src="2.jpg"/>
<img src="3.jpg"/>
</body>
</html>
HTML;
Now let's load it into a DOMDocument and get the img elements:
$dom = new DOMDocument;
$dom->loadHTML($html);
$allImages = $dom->getElementsByTagName('img');
echo $allImages->length, PHP_EOL;
This will print 3 because there is 3 img elements in the DOM right now.
Let's replace the first img element with a p element:
$allImages->item(0)->parentNode->replaceChild(
$dom->createElement("p"),
$allImages->item(0)
);
echo $allImages->length, PHP_EOL;
This now gives 2 because there is now only 2 img elements left, essentially
item 0: img will be removed from the list
item 1: img will become item 0
item 2: img will become item 1
You are using foreach, so you are first replacing item 0, then move on to item 1, but item 1 is now item 2 and the item 0 is item 1 you would expect next. But because the list is live, you are skipping it.
To get around this, use a while loop and always replace the first element:
while ($allImages->length > 0) {
$allImages->item(0)->parentNode->replaceChild(
$dom->createElement("p"),
$allImages->item(0)
);
}
This will then catch all the img elements.

Using simplehtmldom trying to find a URL with out and id or class

First time poster on here, did about a couple hours of searching and trying but got stuck... so go easy on me :)
With a page containing this...
<li onclick="javascript:trackClick(14423, 'web'); document.location='http://www.mywebsite.com';">
<img class="listing-control" src="img/url-profile-listings.png" alt="Get Directions" width="51" height="51" style="padding:4px;">
<span id="web14423">Visit Website</span>
</li>
I am trying to get the url http://www.mywebsite.com in the document.location of the li tag.
The only unique and constant thing to key off is the "Visit Website" text in the span tag. Is there any way to find that and go up to the parent li tag to the the document.location property from the onclick event?
Any help would be greatly appreciated!!!
Thanks,
MrMo.
Of course load it in the SimpleHTMLDOM object, then just target the <li> tag with it. Target the onclick="" attribute to get the values inside it.
Disclaimer: I'm not a regex expert in any way.
$html_string = <<<EOT
<li onclick="javascript:trackClick(14423, 'web'); document.location='http://www.mywebsite.com';">
<img class="listing-control" src="img/url-profile-listings.png" alt="Get Directions" width="51" height="51" style="padding:4px;">
<span id="web14423">Visit Website</span>
</li>
EOT;
$html = str_get_html($html_string);
// after loading the html with either str_get_html or file_get_html
foreach($html->find('li') as $list) {
$script = $list->onclick;
preg_match('/document.location\s*=\s*\'(.*?)\';/', $script, $match);
if(!empty($match)) {
$url = $match[1];
echo $url;
}
}

PHP - wrap an image with a span tag

Hi I am trying to wrap images containing a specific class (pinthis is this example) in a span to which I will add info for schema. This is a basic example and I will need to inject other schema info also. To get me started though can anyone help me get from my existing code to my example output. I need to update multiple pages dynamically and some of the content will come via PHP from Wordpress taxonomies and other data so would prefer to do it in PHP if possible.
<p>
<a class="fancybox" rel="gallery1" href="image.jpg">
<img src="img.jpg" alt="alt text" width="1000" height="1000" class="various classes including ... pinthis">
</a>
</p>
Which I would like to become...
<p>
<a class="fancybox" rel="gallery1" href="image.jpg">
<span itemscope itemtype="http://schema.org/ImageObject">
<img src="img.jpg" alt="alt text" width="1000" height="1000" class="various classes including ... pinthis">
</span>
</a>
</p>
I think if someone could point me in the right direction and give me a push start that would give me enough to carry on from there
Many thanks.
Using PHP DOMDocument, you could do something like this:
$html = '<p><a class="fancybox" rel="gallery1" href="image.jpg"><img src="img.jpg" alt="alt text" width="1000" height="1000" class="various classes pinthis"></a></p>';
// Create a DOMDocument and load the HTML.
$dom = new DOMDocument();
$dom->loadHTML($html);
// Create the span wrapper.
$span = $dom->createElement('span');
$span->setAttribute('itemscope', '');
$span->setAttribute('itemtype', 'http://schema.org/ImageObject');
// Get all the images.
$images = $dom->getElementsByTagName('img');
// Loop the images.
foreach ($images as $image) {
// Only affect those with the pinthis class.
if (strpos($image->getAttribute('class'), 'pinthis') !== false) {
// Clone the span if we need to use it often.
$span_clone = $span->cloneNode();
// Replace the image tag with the span tag.
$image->parentNode->replaceChild($span_clone, $image);
// Add the image tag as a child of the new span tag.
$span_clone->appendChild($image);
}
}
// Get your HTML with saveHTML()
$html = $dom->saveHTML();
echo $html;
Just modify the code to suit your specific needs. For example, if you need to change your span tag attributes, if you are changing your class for searching, etc... You might even want to make a function where you can specify your class and span attributes.
Documentation to DOMDocument: http://php.net/manual/en/class.domdocument.php
use warpAll
check if the image has required class
if image has class, then wrap it with the desired <span></span>
Try it this way :
if ($('img.classes').hasClass('pinthis')){
$('img.classes').wrapAll('<span itemscope itemtype="http://schema.org/ImageObject">></span>');
}
Fiddle Demo
helpful thread : jquery, wrap elements inside a div

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