CODEWITHSUNDEEP
phphtmlhyperlink
Stephen Ou
Stephen Ou

Reputation: 343

Check if a string had been hyperlinked

What regular expression should I use to detect is the text I want to hyperlink had been already hyperlinked.

Example:

I use

$text = preg_replace('/((http)+(s)?:\/\/[^<>\s]+)/i', '<a href="\\0">\\0</a>', $text);

to link regular URL, and

$text = preg_replace('/[@]+([A-Za-z_0-9]+)/', '@<a href="http://twitter.com/#!/\\1">\\1</a>', $text);

to link Twitter handle.

I want to detect whether or not the text I'm going to hyperlink had been wrapped in <a href=""></a> already.

Upvotes: 1

Views: 125

Answers (4)

Jerry Chen
Jerry Chen

Reputation: 1

$html = '<a href="#">Stephen Ou</a>';

$str = 'Stephen Ou';

if (strlen(str_replace($str, '', $html)) !== strlen($html)) {

    echo 'I got a feeling';

}

Upvotes: 0

nepgan
nepgan

Reputation: 1

if (strpos($str, '<a ') !== FALSE) echo 'ok';

else echo 'error';

Upvotes: 0

Jamie
Jamie

Reputation: 1361

Maybe not an answer but another possible solution; You could also search to see if the starting a element exists

$text = '<a href="#">here</a>';
if (gettype(strpos($text, "<a")) == "integer"){
  //<a start tag was found
};

or just strip all tags regardless and build the link anyway

$text = '<a href="#">here</a>'; 
echo '<a href="my-own-url">' . strip_tags($text) . '</a>';

Upvotes: 1

Cyclone
Cyclone

Reputation: 18295

Simple, replace the regular URLs first, as it won't affect anything starting with an @ cause no URL starts with an @. Then replace the twitter handles.

That way you don't need to detect if it's been hyperlinked already.

Upvotes: 0

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