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    copied!<h2>New Complete Solution:</h2> <pre><code>&lt;?php //your bad code which you want to sanitize $BadCode = '&lt;object width="640" height="385"&gt; &lt;param name="movie" value="http://www.youtube.com/v/TvJsRX9SKUo?fs=1&amp;hl=it_IT"&gt;&lt;/param&gt; &lt;param name="allowFullScreen" value="true"&gt;&lt;/param&gt;&lt;param name="allowscriptaccess" value="always"&gt;&lt;/param&gt; &lt;embed src="http://www.youtube.com/v/TvJsRX9SKUo?fs=1&amp;hl=it_IT" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"&gt;&lt;/embed&gt; &lt;/object&gt;'; //Get Youtube Video ID preg_match('#(?&lt;=youtube\.com/v/)\w+#', $BadCode, $matches); $VideoID = $matches[0]; //New Correct and consistent embed code template. Create whatever consistent template you want. Then all your videos will follow this template. Change the place where video-id appears as [VIDEOID] $template = '&lt;object type="application/x-shockwave-flash" style="width:450px; height:366px;" data="http://www.youtube.com/v/[VIDEOID]?showsearch=0&amp;amp;fs=1"&gt; &lt;param name="movie" value="http://www.youtube.com/v/[VIDEOID]?showsearch=0&amp;amp;fs=1" /&gt;&lt;param name="allowFullScreen" value="true" /&gt; &lt;/object&gt;'; //Insert our VideoID into this template. $GoodCode = str_replace('[VIDEOID]', $VideoID, $template); //Display code for testing echo $GoodCode; //Update your database table (please change variables yourself) //mysql_query("update tablename set YoutubeCode = '".$GoodCode."' where ID={$ID}"); ?&gt; </code></pre> <h2>Old Summarized Answer:</h2> <p>[Regex for extracting video ID]. After getting video ID, you have the video ID. Use this ID to generate a clean consistent code for all your videos. Then, update the database.</p>
 

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