I have got a function that converts strings like 'www.example.com' and 'http://example.com' in hyperlinks. It also deals with subdomains e.g. 'http://sub.example.com'.
But it fails with this one - http://www.example.com' and outputs the following
<a href="http://<a href="http://www.chemica.ru">www.chemica.ru</a>">http://<a href="http://www.chemica.ru">www.chemica.ru</a></a>
Please, can anyone help? The problem is that both 'http://' and 'www.' are together and both have different ways of converting.
function makeLinks($text){
$text = eregi_replace('(((f|ht){1}tp://)[-a-zA-Z0-9@:%_\+.~#?&//=]+)', '<a href="\\1">\\1</a>', $text);
$text = eregi_replace('(www.[-a-zA-Z0-9@:%_\+.~#?&//=]+)', '<a href="http://\\1">\\1</a>', $text);
$text = eregi_replace('([_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]{2,3})', '<a href="mailto:\\1">\\1</a>', $text);
return $text;
}
You might want to read this blog post by Jan Goyvaerts for some ideas on how to find URLs in text.
To solve your immediate problem, you could add a negative lookbehind to your second regex: (?<!http://)(www.[-a-zA-Z0-9@:%_\+.~#?&/=]+) ensures that www... will only be matched if it is not preceded by http://.
However, ereg functions are deprecated and don't support lookaround, so you'll need to use preg_replace().
$text = preg_replace('/(?<!http:\/\/)(www.[-a-zA-Z0-9@:%_\+.~#?&\/=]+)/i', '<a href="http://\1">\1</a>', $text);
should work.
For both 'http://' and 'www.' together, you can do something like this:
$text = "http://www.example.com is a nice site";
$link = preg_replace("/([\w]+:\/\/[\w-?&;#~=\.\/\@]+[\w\/])/i","<a target=\"_blank\" href=\"$1\">$1</a>", $text);
echo $link;
Works for URLs starts with http://
just write to your view's page (you dont need any library or helper function) :
$text = "Good Site is http://masalahkita.com";
$link = preg_replace("/([\w]+:\/\/[\w-?&;#~=\.\/\@]+[\w\/])/i","<a target=\"_blank\" href=\"$1\">$1</a>", $text);
echo $link;