Email+URL的判断和自动转换函数
<?phpfunction validateEmail($email)
{ return eregi("^[_a-z0-9-]+(.[_a-z0-9-]+)*@[a-z0-9-]+(.[a-z0-9-]+)*(.[a-z]{2,3})$", $email);
}
function validateURL($url)
{ return eregi("^((ht|f)tp://)((([a-z0-9-]+(.[a-z0-9-]+)*(.[a-z]{2,3}))|(([0-9]{1,3}.){3}([0-9]{1,3})))((/|?)[a-z0-9~#%&_+=:?.-]*)*)$", $url);
}
function convertURLS($text)
{ $text = eregi_replace("((ht|f)tp://www.|www.)([a-z0-9-]+(.[a-z0-9-]+)*(.[a-z]{2,3})((/|?)[a-z0-9~#%&\/_+=:?.-]*)*)", "http://www.\3", $text);
$text = eregi_replace("((ht|f)tp://)((([a-z0-9-]+(.[a-z0-9-]+)*(.[a-z]{2,3}))|(([0-9]{1,3}.){3}([0-9]{1,3})))((/|?)[a-z0-9~#%&_+=:?.-]*)*)", "<a href="\0">\0</a>", $text);
return $text;
}
function convertMail($text)
{ $text = eregi_replace("([_a-z0-9-]+(.[_a-z0-9-]+)*@[a-z0-9-]+(.[a-z0-9-]+)*(.[a-z]{2,3}))", "<a href=mailto:\0>\0</a>", $text);
return $text;
}
function convertAllLinks($text)
{ $text = convertURLS($text);
$text = convertMail($text);
return $text;
}
?>
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