Question

I want to use simple_html_dom.php to do some work.

$html = file_get_html('http://www.domain.com');
foreach($html->find('p') as $element) {
echo $element;
}

I have 2 problems.

1. How to add a judge if failed to open stream: then echo 'this is not a valid url';?
2. How to make a judge if there is no p tag in foreach, then echo 'Can not find p tag'; ?

Thanks.

Answer 1

try this:

$html = file_get_html('http://www.domain.com') or die('this is not a valid url');
$p = $html->find('p');
if(count($p) <=0){
   die('Can not find p tag')
}
foreach($p as $element) {
echo $element;
}