php获取域名的google收录示例_PHP

function get_index($domain){ 
$url="http://www.google.com/search?source=hp&biw=1440&bih=762&q=site%3A$domain&aq=f&aqi=g10&aql=&oq="; 
$html=file_get_contents($url); 
preg_match('/[\S\s].*/Ui', $html,$index); 
for($i=0;$i<=strlen($index['0']);$i++){ 
if(is_numeric($index['0'][$i])){ 
$count.=$index['0'][$i]; 
} 
} 
return $count; 
}