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POphp update limit not work in a mysql_fetch_array loop
 

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  1. POphp update limit not work in a mysql_fetch_array loop
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    <p>I want to let my database article reclassified. I explode the text of a given article, and then see if there is one word of the article match 1 tag which it has appear in the category table, then update this article in this category name. My code is here. I want make a limit that every category max has 5 articles. but the update limit not work. Thanks.</p> <pre><code>&lt;?php header('Content-type:text/html; charset=utf-8'); $db = mysql_connect("localhost","root","root") or die("can not connect Mysql Server"); mysql_select_db("12",$db); $result = mysql_query("SELECT title,content,id,cat,date FROM articles Order By date DESC"); //get all the articles $count = 0; $ids = array(); $categories = array('1','2','3','4','5','6','7','8','9','10');//category numbers, for 1 = art, 2 = travel... these are stored in another refrenced DB table $curCategory = array_shift($categories); echo $curCategory; while ($row = mysql_fetch_array($result)) { $tt = $row['title'].'&amp;nbsp;'.$row['content']; $tt = preg_replace('/[^a-zA-Z0-9 ]/','',$tt); $words = preg_split("/\s+/",$tt); $uniqueWords = array_keys(array_flip($words)); // broken article sentence into words $parts = ''; foreach($uniqueWords as $word){ $parts[] = " tag1 = '$word' OR tag2 = '$word' OR tag3 = '$word' OR tag4 = '$word' OR tag5 = '$word' "; } $where = implode(" OR ", $parts); mysql_select_db("12",$db); mysql_query("SET NAMES utf8"); $query1 = mysql_query("SELECT count(*) as count FROM tag1 WHERE ($where) AND category ='count($categories)' "); //put the break words into reference table match out the category number $count = 0; while ($row = mysql_fetch_array($query1)) { $count = $row['count']; } if($count) { $ids[] = $row['id']; $count++; if($count == 5) { mysql_query("UPDATE articles SET cat = '$curCategory' WHERE id in ('".implode("', '", $ids)."')"); //update every category max articles if(!$curCategory = array_shift($categories)) { break; } $count = 0; $ids = array(); } } } ?&gt; </code></pre> <p>reference table</p> <pre><code>category | tag1 | tag2 | tag3 | tag4 | tag5 1 | paint | picture| sculpture | photo | bronze 2 | tourism | travel | tour | journey | trip 3 | style | vogue | fashion | mode | Popular ... // 10 categories, category 1 = art , category 2 = travel ... </code></pre>
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    1. COI can tell from your query having `tag1`, `tag2`, etc... that you've done improper normalization on the database. In any case, you could vastly simplify that part of the query with `... WHERE '$word' in (tag1, tag2, tag3, ...)`
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