[php] php的文章中網址自動轉成連結

第一個

$text = eregi_replace("([^=\"])(http|ftp|gopher://[^ \n\r]+(?=[\s\.,]))","\\1<a href=\"\\2\" target=_top>\\2</a>", $text);

第二個

$comment = eregi_replace("([_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]

{2,3})","<a href=\"mailto:\\1\">\\1</a>", $comment);

抄個煩點的齊全板版

function buildHyperlinks($string) {

$httpurl =

"(((f|ht){1}tp://)[a-zA-Z0-9@:%_.~#-\?&]+[a-zA-Z0-9@:%_~#\?&])";

$wwwsurl =

"(([[:space:]+]|^)(www[.][a-zA-Z0-9@:%_.~#-\?&]+[a-zA-Z0-9@:%_~#\?&]))";

$mailurl =

"([-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+@[-!#$%&\'*+\\/0-9=?A-Z^_`a-z{|}~]+\.[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+)";

$parts = explode(" ", $string);

for($i = 0; $i < sizeof($parts); $i++) {

if(eregi($httpurl, $parts[$i])) {

$temp = $parts[$i];

$parts[$i] = eregi_replace($httpurl, "<a href=\"\\1\"

target=\"_blank\">", $parts[$i]);

$parts[$i] .= "$temp</a>";

}

if(eregi($wwwsurl, $parts[$i])) {

$temp = $parts[$i];

$parts[$i] = eregi_replace($wwwsurl, "\\2<a

href=\"http://\\3\" target=\"_blank\">", $parts[$i]);

$parts[$i] .= "$temp</a>";

}

if(eregi($mailurl, $parts[$i])) {

$temp = $parts[$i];

$parts[$i] = eregi_replace($mailurl, "<a

href=\"mailto:\\1\">", $parts[$i]);

$parts[$i] .= "$temp</a>";

}

}

return join(" ", $parts);

}