';
$ref_txtstart = 'http://w...content-available-to-author-only...e.net/index.php?p';
$ref_txtend = '/1/';
$regex =
'~
"\']|"[^"]*"|\'[^\']*\')*? (?<=\s) href \s*=
(?|
(?>
\s* ([\'"]) \s*
' . preg_quote($ref_txtstart) . ' ((?:(?!\g{-2}).)*) ' . preg_quote($ref_txtend) . '
\s* \g{-2}
)
|
(?>
(?!\s*[\'"]) \s* ()
' . preg_quote($ref_txtstart) . ' ([^\s>]*) ' . preg_quote($ref_txtend) . '
(?=\s|>)
)
)
)
\s+ (?:".*?"|\'.*?\'|[^>]*?)+
>~xs
';
echo ("$regex\n");
preg_match_all( $regex, $html, $matches, PREG_SET_ORDER );
foreach ($matches as $val) {
echo( "matched = $val[0]\ncore = $val[2]\n\n" );
}
?>