CODEWITHSUNDEEP
phpregex
gordyr
gordyr

Reputation: 6276

Adding the http:// to a detected URL in a body of text with PHP

I am using the following to automatically add tags to any detected URL in a comment, before insertion into the database.

$pattern = "@\b(https?://)?(([0-9a-zA-Z_!~*'().&=+$%-]+:)?[0-9a-zA-Z_!~*'().&=+$%-]+\@)?(([0-9]{1,3}\.){3}[0-9]{1,3}|([0-9a-zA-Z_!~*'()-]+\.)*([0-9a-zA-Z][0-9a-zA-Z-]{0,61})?[0-9a-zA-Z]\.[a-zA-Z]{2,6})(:[0-9]{1,4})?((/[0-9a-zA-Z_!~*'().;?:\@&=+$,%#-]+)*/?)@";

$text_with_hyperlink = stripslashes(preg_replace($pattern, '<a href="\0" class="oembed">\0</a>', $body));

Everything works great apart from the fact that I wish any URL's that are typed without 'http://' to have it added to the beginning of the url.

e.g.

With the above code a comment containing 'come visit our site http://www.facebook.com'

returns come visit our site <a href="http://www.facebook.com">http://www.facebook.com</a>

However if a user types 'come visit our site www.facebook.com'

I wish it to return the url complete with an http:// prefix.

How would I go about modifying my code to produce this kind of detection?

EDIT: My apologies for failing to mention originally the the solution should also be capabale of detecting non www. domains such as m.facebook or facebook.com ideally.

Upvotes: 0

Views: 193

Answers (2)

Stefan
Stefan

Reputation: 2204

Maybe this here is what you are looking for: http://snippets.dzone.com/posts/show/6156

//Edit: What about this one:

<?php
$body = $_GET['body'];
$pattern = "/(\\s+)((?:[a-z][a-z\\.\\d\\-]+)\\.(?:[a-z][a-z\\-]+))(?![\\w\\.])/is";
$text_with_hyperlink = preg_replace($pattern, '<a href="http://\\0" class="oembed">\0</a>', $body);
$text_with_hyperlink = preg_replace("/(http)(:)(\\/)(\\/)(\\s+)/is", "http://", $text_with_hyperlink);
echo $text_with_hyperlink;
?>

(Very dirty, i know...)

Upvotes: 1

Madara&#39;s Ghost
Madara&#39;s Ghost

Reputation: 175098

One quick and dirty solution would be to replace www.? with http://www.? As follows:

$text_with_hyperlink = preg_replace("|(?<!http://)(www\.\S+)|", "http://$1", $text_with_hyperlink);

Place it before the <a> adding code, it will transform all www.links.com to http://www.links.com.

Upvotes: 1

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