post processing on google urls

Question

I have grabbed some urls from Google search results using a regular expression. It has provided me the links in the format given below. Now, I just want the scheme and the host.

Answer 1

Regex to match the above mentioned URL's which are preceded by /url?q= ,

\/url\?q=\K.*?(?=\/&)

DEMO

OR

www\.[^.]*\.(?:org|com)

DEMO

Your PHP code would be,

<?php
$url = <<< 'EOT'
/url?q=http://www.fertile-focus.com/&sa=U&ei=dTTTU7L2A4egugSY44LgAQ&ved=0CCsQFjAEOGQ&usg=AFQjCNEwG9ntbG0ZtqbqjJNSfVTlqQJYmg

/url?q=http://www.genetests.org/&sa=U&ei=dTTTU7L2A4egugSY44LgAQ&ved=0CDgQFjAGOGQ&usg=AFQjCNFiux9o5YIUGP4P8B_oG_J6iD1Y6g
EOT;
$regex =  '~\/url\?q=\K.*?(?=\/&)~';
preg_match_all($regex, $url, $matches);
var_dump($matches);
?>

Output:

array(1) {
  [0]=>
  array(2) {
    [0]=>
    string(28) "http://www.fertile-focus.com"
    [1]=>
    string(24) "http://www.genetests.org"
  }
}

Answer 2

I'd use parse_url and parse_str to achieve this rather than regular expressions.

<?php
    $url = "/url?q=http://www.fertile-focus.com/&sa=U&ei=dTTTU7L2A4egugSY44LgAQ&ved=0CCsQFjAEOGQ&usg=AFQjCNEwG9ntbG0ZtqbqjJNSfVTlqQJYmg";
    $query = parse_url($url, PHP_URL_QUERY);
    parse_str($query,$result);
    echo $result['q'];

DEMO