when use "new domDocument;" in opencart gives error -> "This page isn't working

$html = utf8_decode($html);
$docs = new domDocument;
$docs->loadHTML($html);
$docs->preserveWhiteSpace = false;
$tables = $docs->getElementsByTagName('a');
echo $rows = $tables->item(0)->getAttribute('href');

above code used to fetch link from html tags.
below is whole code please suggest why it's not working. give some suggestions
----------------------------------------------------------------------------------------------------------------------------------------------------------------------
<?php
class ControllerExtensionModuleAllOffers extends Controller {
public function index() {
$this->load->language('extension/module/salescombopge');

$data['breadcrumbs'] = array();

$data['breadcrumbs'][] = array(
'text' => $this->language->get('text_home'),
'href' => $this->url->link('common/home')
);

$data['breadcrumbs'][] = array(
'text' => $this->language->get('text_alloffers'),
'href' => $this->url->link('extension/module/alloffers')
);

$this->document->addScript('catalog/view/javascript/jquery/flip.js');
$this->document->setTitle($this->language->get('text_alloffers'));
$this->load->model('extension/module/salescombopge');
$this->load->model('tool/image');

$data['salescombopge_info'] = $this->model_extension_module_salescombopge->getAllOffers();

foreach ($data['salescombopge_info'] as $key => $value) {
if ($value['image']) {
$data['salescombopge_info'][$key]['thumb'] = $this->model_tool_image->resize($value['image'], $this->language->get('alloffer_image_width'), $this->language->get('alloffer_image_height'));
} else {
$data['salescombopge_info'][$key]['thumb'] = $this->model_tool_image->resize('placeholder.png', $this->language->get('alloffer_image_width'), $this->language->get('alloffer_image_height'));
}

$data['salescombopge_info'][$key]['rules'] = html_entity_decode($value['rules']);
$html = $value['rules'];
$html = utf8_decode($html);
$docs = new domDocument;
$docs->loadHTML($html);
$docs->preserveWhiteSpace = false;
$tables = $docs->getElementsByTagName('a');
$rows = $tables->item(0)->getAttribute('href');
//$data['salescombopge_info'][$key]['url'] = $href;
}
//die;
$data['salescombopgetotal'] = count($data['salescombopge_info']);
$data['button_continue'] = $this->language->get('button_continue');
$data['button_viewmore'] = $this->language->get('button_viewmore');
$data['button_viewdetails'] = $this->language->get('button_viewdetails');

if($data['salescombopgetotal'] == 1) {
$data['totaloffers'] = sprintf($this->language->get('totaloffer'),$data['salescombopgetotal']);
} else if($data['salescombopgetotal']) {
$data['totaloffers'] = sprintf($this->language->get('totaloffers'),$data['salescombopgetotal']);
} else {
$data['totaloffers'] = "";
}

$data['continue'] = $this->url->link('common/home');

$data['column_left'] = $this->load->controller('common/column_left');
$data['column_right'] = $this->load->controller('common/column_right');
$data['content_top'] = $this->load->controller('common/content_top');
$data['content_bottom'] = $this->load->controller('common/content_bottom');
$data['footer'] = $this->load->controller('common/footer');
$data['header'] = $this->load->controller('common/header');

$this->response->setOutput($this->load->view('extension/module/alloffers', $data));
}
}

Check both your PHP and OpenCart error logs.

There is no any php error and not in opencart error log.

Try your server error logs and your web browser's developer console.

kanchan1995 wrote: ↑

Wed May 11, 2022 7:25 pm

There is no any php error and not in opencart error log.

Which logs have you checked? There are quite a few ...

I have checked there is no error in server log.
getting the issue on this line-> echo $rows = $tables->item(0)->getAttribute('href');

I have checked both side logs opencart and server side also, there is no error.
when put below line of code -> There is no error but page is not working and not giving any output.

echo $rows = $tables->item(0)->getAttribute('href');

Could be dirty markup. This could happen when you copy directly from an MS Word document to an OpenCart product description on its backend product edit page.

OC version. If using cPanel, see your logs folder in your root domain path on your file server.

kanchan1995 wrote: ↑

Wed May 11, 2022 6:07 pm

Code: Select all

$docs = new domDocument;

domDocument needs ()

Try this.

paulfeakins wrote: ↑

Thu May 12, 2022 5:21 pm

kanchan1995 wrote: ↑

Wed May 11, 2022 6:07 pm

Code: Select all

$docs = new domDocument;

domDocument needs ()

Not necessarily - But probably better to add the required encoding at least.

Correct. UTF-8 may be needed here in the second parameter. A few e.gs are provided from the catalog/model/extension/shipping/* files.