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| URL¿¡¼ µµ¸ÞÀθ¸ ÃßÃâÇϱâ |  |  
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| /** 
 * µµ¸ÞÀÎ¸í¿¡¼ ¸ÞÀÎ »çÀÌÆ®¸í¸¸ °¡Á®¿À±â
 
 */
 
 function getHostName($url)
 
 {
 
 $value = strtolower(trim($url));
 
 if (preg_match('/^(?:(?:[a-z]+):\/\/)?((?:[a-z\d\-]{2,}\.)+[a-z]{2,})(?::\d{1,5})?(?:\/[^\?]*)?(?:\?.+)?$/i', $value))
 
 {
 
 preg_match('/([a-z\d\-]+(?:\.(?:asia|info|name|mobi|com|net|org|biz|tel|xxx|kr|co|so|me|eu|cc|or|pe|ne|re|tv|jp|tw)){1,2})(?::\d{1,5})?(?:\/[^\?]*)?(?:\?.+)?$/i', $value, $matches);
 
 $host = (!$matches[1]) ? $value : $matches[1];
 
 }
 
 return $host;
 
 }
 
 
 
 
 Ex)
 
 $url = "http://dvlp.tistory.com/1";
 
 echo getHostName($url);
 
 output : tistory.com
 
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