사이트에서 외부링크를 못사용하게 하고 십습니다. 채택완료

​</P>
<P>function url_auto_link($str)
{
    /*
    global $g5;
    global $config;</P>
<P>    // 140326 유창화님 제안코드로 수정
    // <A href="<a href="http://sir.co.kr/bbs/board.php?bo_table=pg_lecture&wr_id=461" target="_blank" rel="noopener noreferrer">http://sir.co.kr/bbs/board.php?bo_table=pg_lecture&wr_id=461</a>"><a href="http://sir.co.kr/bbs/board.php?bo_table=pg_lecture&wr_id=461" target="_blank" rel="noopener noreferrer">http://sir.co.kr/bbs/board.php?bo_table=pg_lecture&wr_id=461</a></A>
    // <A href="<a href="http://sir.co.kr/bbs/board.php?bo_table=pg_lecture&wr_id=463" target="_blank" rel="noopener noreferrer">http://sir.co.kr/bbs/board.php?bo_table=pg_lecture&wr_id=463</a>"><a href="http://sir.co.kr/bbs/board.php?bo_table=pg_lecture&wr_id=463" target="_blank" rel="noopener noreferrer">http://sir.co.kr/bbs/board.php?bo_table=pg_lecture&wr_id=463</a></A>
    $str = str_replace(array("&lt;", "&gt;", "&amp;", "&quot;", " ", "&#039;"), array("\t_lt_\t", "\t_gt_\t", "&", "\"", "\t_nbsp_\t", "'"), $str);
    //$str = preg_replace("`(?:(?:(?:href|src)\s*=\s*(?:\"|'|)){0})((http|https|ftp|telnet|news|mms)://[^\"'\s()]+)`", "<A HREF=\"<A href="file://0.0.0.1/">\\1\</A>" TARGET='{$config['cf_link_target']}'>\\1</A>", $str);
    $str = preg_replace("/([^(href=\"?'?)|(src=\"?'?)]|\(|^)((http|https|ftp|telnet|news|mms):\/\/[a-zA-Z0-9\.-]+\.[가-힣\xA1-\xFEa-zA-Z0-9\.:&#=_\?\/~\+%@;\-\|\,\(\)]+)/i", "<A href="file://1%3ca/">\\1<A</A> HREF=\"<A href="file://0.0.0.2/">\\2\</A>" TARGET=\"{$config['cf_link_target']}\">\\2</A>", $str);
    $str = preg_replace("/(^|[\"'\s(])(www\.[^\"'\s()]+)/i", "<A href="file://1%3ca/">\\1<A</A> HREF=\"<A href="<a href="http:////2/" target="_blank" rel="noopener noreferrer">http:////2/</a>"><a href="http://\\2\" target="_blank" rel="noopener noreferrer">http://\\2\</a></A>" TARGET=\"{$config['cf_link_target']}\">\\2</A>", $str);
    $str = preg_replace("/[0-9a-z_-]+@[a-z0-9._-]{4,}/i", "<a href=\"<A href="mailto:\\0\%22%3E\\0%3C/a">mailto:\\0\">\\0</a</A>>", $str);
    $str = str_replace(array("\t_nbsp_\t", "\t_lt_\t", "\t_gt_\t", "'"), array(" ", "&lt;", "&gt;", "&#039;"), $str);
    */</P>
<P>    /*
    // 속도 향상 031011
    $str = preg_replace("/&lt;/", "\t_lt_\t", $str);
    $str = preg_replace("/&gt;/", "\t_gt_\t", $str);
    $str = preg_replace("/&amp;/", "&", $str);
    $str = preg_replace("/&quot;/", "\"", $str);
    $str = preg_replace("/ /", "\t_nbsp_\t", $str);
    $str = preg_replace("/([^(http:\/\/)]|\(|^)(www\.[^[:space:]]+)/i", "<A href="file://1%3ca/">\\1<A</A> HREF=\"<A href="<a href="http:////2/" target="_blank" rel="noopener noreferrer">http:////2/</a>"><a href="http://\\2\" target="_blank" rel="noopener noreferrer">http://\\2\</a></A>" TARGET='{$config['cf_link_target']}'>\\2</A>", $str);
    //$str = preg_replace("/([^(HREF=\"?'?)|(SRC=\"?'?)]|\(|^)((http|https|ftp|telnet|news|mms):\/\/[a-zA-Z0-9\.-]+\.[\xA1-\xFEa-zA-Z0-9\.:&#=_\?\/~\+%@;\-\|\,]+)/i", "<A href="file://1%3ca/">\\1<A</A> HREF=\"<A href="file://0.0.0.2/">\\2\</A>" TARGET='$config['cf_link_target']'>\\2</A>", $str);
    // 100825 : () 추가
    // 120315 : CHARSET 에 따라 링크시 글자 잘림 현상이 있어 수정
    $str = preg_replace("/([^(HREF=\"?'?)|(SRC=\"?'?)]|\(|^)((http|https|ftp|telnet|news|mms):\/\/[a-zA-Z0-9\.-]+\.[가-힣\xA1-\xFEa-zA-Z0-9\.:&#=_\?\/~\+%@;\-\|\,\(\)]+)/i", "<A href="file://1%3ca/">\\1<A</A> HREF=\"<A href="file://0.0.0.2/">\\2\</A>" TARGET='{$config['cf_link_target']}'>\\2</A>", $str);</P>
<P>    // 이메일 정규표현식 수정 061004
    //$str = preg_replace("/(([a-z0-9_]|\-|\.)+@([^[:space:]]*)([[:alnum:]-]))/i", "<a href='mailto:\\1'>\\1</a>", $str);
    $str = preg_replace("/([0-9a-z]([-_\.]?[0-9a-z])*@[0-9a-z]([-_\.]?[0-9a-z])*\.[a-z]{2,4})/i", "<a href='mailto:\\1'>\\1</a>", $str);
    $str = preg_replace("/\t_nbsp_\t/", " " , $str);
    $str = preg_replace("/\t_lt_\t/", "&lt;", $str);
    $str = preg_replace("/\t_gt_\t/", "&gt;", $str);
    */</P>
<P>    return $str;
}​