need some help of onclick button in php

[blacktiger786]

i have this code which fetch meta tags and title

function file_get_contents_curl($url)
{
    $ch = curl_init();

    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

    $data = curl_exec($ch);
    curl_close($ch);

    return $data;
}

$html = file_get_contents_curl("http://example.com/");

//parsing begins here:
$doc = new DOMDocument();
@$doc->loadHTML($html);
$nodes = $doc->getElementsByTagName('title');

//get and display what you need:
$title = $nodes->item(0)->nodeValue;

$metas = $doc->getElementsByTagName('meta');

for ($i = 0; $i < $metas->length; $i++)
{
    $meta = $metas->item($i);
    if($meta->getAttribute('name') == 'description')
        $description = $meta->getAttribute('content');
    if($meta->getAttribute('name') == 'keywords')
        $keywords = $meta->getAttribute('content');
}

if(!title == ' ')
{
echo ' found a title';
}

in this code you see in last i have if condition (!title==' ') its execute it when i open file

i want its only run when i click the html button like

<input type="button" name="Release" onclick="" value="Click ">

please tell me what i do help me

[Psycho]

The above is PHP code. But, that condition is invalid - you are missing the dollar sign at the beginning of the variable name: $title

 

Plus, to do something "onclick" requires that you either submit the page and process the POST/GET data or you need to implement JavaScript to perform an AJAX request. I assume you want the latter. But, there's too much to try and tell you how to do this in a forum post. I would suggest you look up on how to implement JQuery's AJAX functionality.