1. The bug which shows an error when you use several characters in explanatory dictionary is fixed.

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1. You can add words (words expressions, sentences) which are already existed in the words (words expressions, sentences) you added before.
2. You can edit the explanations of the dictionary.
3. The problem with posts images captions is solved.

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Special thanks to Nick Asenov for developing this version of the plugin.

1. Added new options – “Set Explaining Word (Words Expression, Sentence) Style”, “Exclude”, “Limit”.

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Plugin Homepage

1. Added new option “unicode”.
2. Now you can show all words (words expressions, sentences) with their explanations.
3. Fixed some bugs

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In administration interface you can do the following:
1. set the explanation tooltip width
2. select the explanation tooltip text align
3. set the explanation tooltip text font size
4. set the explanation tooltip text color
5. set the explanation tooltip border size
6. set the explanation tooltip border color
7. set the explanation tooltip background color
8. set the explanation tooltip padding
9. set the explanation tooltip border radius
10. set the explaining word (words expression, sentence) color

Download plugin from rubensargsyan.com or from wordpress.org.

function highlight_words($text,$word){
   $text = preg_replace('/\b'.$word.'\b/i', '<span class="highlight">$0</span>', $text);
   return $text;
}

Note to that if the searched word is in the structure of the other wordform (for example the word “stand” is in the structure of the word “understand”), so the word will not be highlighted. It will be highlighted when after or before the word is not appeared alphabetic or digital character or underline (_) character. The function also ignores case sensitivity of the word. If the searched word is “light”, the words “highlight”, “light_faced”, “lighten”, “light9″ e.t.c. will not be highlighted as well.

Example:

Searching the word “book” in the text “Our book-keeper was bought an interesting book from bookshop. Book name is My big book.”

<?php
function highlight_words($text,$word){
   $text = preg_replace('/\b'.$word.'\b/i', '<span class="highlight">$0</span>', $text);
 
   return $text;
}
?>
 
<style>
.highlight{
   background-color: #214579;
   color: #ffffff;
}
</style>
 
<?php
$word = "book";
$text = "Our book-keeper was bought an interesting book from bookshop. Book name is My big book.";
 
echo(highlight_words($text,$word));
?>

The above example will output:

Our book-keeper was bought an interesting book from bookshop. Book name is My big book.

You see that the word “book” of the wordform “bookshop” was not highlighted, and the words “book-keeper”, “book”, “Book” and “book” which is followed by the punctuation mark “.” was highlighted.

Set your style to the highlighted words in .highlight{ … }.

The demo you can see here.