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POConducting a diacritic sensitive search
 

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    <p>I've looked all over the web only to find ways to make searches insensitive to diacritic characters, but I need the opposite.</p> <p>In my situation I need to be able to compare specifically symbols with superscript and subscript dots (i.e. ȧ &amp; ạ) and some other more common acents (á, ã, etc), but these letters might be anything (ṡ, ṛ, ṫ, ḍ, ṅ, etc). The desired result would work like this: if I search for "a" I receive "a" only, and if I search for "ȧ", I receive "ȧ" only as a result and not "a" along with it (without the dot).</p> <p>I've read that I need to use utf8_bin and have tried changing both my field collations, table collations and database collations to that with no success. Here's the code:</p> <pre><code>// "sound" is being passed in by an AJAX call $sound = $_POST['sound']; $query = "SELECT * FROM sounds WHERE 'sound' = '$sound'"; $result = mysql_query($query); // This is then sent back to my page. </code></pre> <p>I've also looked into COLLATE with little success. I'm probably misunderstanding its prober usage:</p> <pre><code>// Attempting to covert the searched string into the utf8_bin format to match my db collations $query = "SELECT * FROM sounds WHERE 'sound' = '$sound' COLLATE utf8_bin"; </code></pre> <p>When I use utf8_general_ci or utf8_unicode_ci I get the excepted result of "a" or "ȧ" returning both "ȧ" and "a". However, If I use utf8_bin I get nothing when searching for either of these. I believe this is because in my database when using utf8_bin this - "ṅ(PH)" (one of my entries) - gets converted to this - "e1b98528504829". So Is there a way of converting my searches to that same format before querying them? Or just an all around better way of making this work?</p> <p>Thank you!</p>
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    1. COIs your incoming data UTF-8 encoded?
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    2. COYes, if by that you mean the page's meta "Content-Type" is set to UTF8.
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    3. CO@Pekka - since the search works for utf8_general_ci and utf8_unicode_ci, it is very unlikely that this is an encoding issue.
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