CODEWITHSUNDEEP
phphtmlwordpressif-statementconditional-statements
Showhan Ahmed
Showhan Ahmed

Reputation: 109

How to check the existence of any HTML element using a PHP condition?

On a WordPress website, how can I check the existence of any HTML element (with ID or class) using a PHP condition?

This ticket solution didn't work in my case. Check if div ID exists in PHP

Anyway, I've tried with this code:

$new = $html->find("#banner_id");
if($new){
    echo "Exists";
} else {
    echo "Not Exists";
}

But this resulted in the following error:

error-image

Upvotes: 1

Views: 2774

Answers (1)

dipmala
dipmala

Reputation: 2011

I found your $html variable is null you need to create object before start to find the element by id 

 $html = new simple_html_dom(); // Create a DOM object
 Method - 1:  $html->load_file('path-to-file/example.html');   // Load HTML from a HTML file   
 Method - 2:  $html->load_file('http://www.yourdomainname.com/');// Load HTML from an URL
 Method - 3:  $html->load('<html><body><div id="banner_id">All the Besttttt!</div></body></html>'); // Load HTML from a string

Either use any method from above list then start to find it.

$main = $html->find('div[id=banner_id]',0);// Find the element where the id is equal to a particular value

Complete code

$html->load('<html><body><div id="banner_id">All the Besttttt!</div></body></html>');// Load HTML from a string
$divdata= $html->find('div[id=banner_id]',0);// Find the element where the id is equal to a particular value

For more detail please have a look here http://www.gurutechnolabs.com/php-simple-html-dom-parser-script/

Upvotes: 1

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