note 69087 added to function.mysql-fetch-array

From: Date: Tue, 22 Aug 2006 17:22:57 +0000
Subject: note 69087 added to function.mysql-fetch-array
Groups: php.notes 
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In response to both Solutions-at-lanetech and Adam: First of all, Solutions isn't looking for the number of rows--he's looking for the number of fields (columns) in a given result. While mysql_num_rows won't help him directly, there is another way. Unless you specifically need the data for other reasons (which I obviously don't know from your post), I believe that using mysql_num_fields would be much faster, as you don't need to actually return the result set or need to run that loop. Example: <?php // We'll just make do a query here, assuming that we're already connected to the DB $query = 'SELECT * FROM table WHERE id > 6465498 LIMIT 1000'; $result = mysql_query($query); // If we just want the number of fields . . . $fields = mysql_num_fields($result); // Or, if--like in your example--we're looking for the total number for all rows (I don't know why, but anyways . . .) $fields = mysql_num_fields($result) * mysql_num_rows($result); // I suppose that you could also make MySQL do the work: $query = 'SELECT COUNT(*) FROM table LIMIT 1'; $result = mysql_query($query); list($fields) = mysql_fetch_row($result); ?> I hope that gives you some ideas . . . ---- Server IP: 216.194.113.175 Probable Submitter: 72.34.75.194 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/function.mysql-fetch-array.php Edit -- https://master.php.net/note/edit/69087 Del: integrated -- https://master.php.net/note/delete/69087/integrated Del: useless -- https://master.php.net/note/delete/69087/useless Del: bad code -- https://master.php.net/note/delete/69087/bad+code Del: spam -- https://master.php.net/note/delete/69087/spam Del: non-english -- https://master.php.net/note/delete/69087/non-english Del: in docs -- https://master.php.net/note/delete/69087/in+docs Del: other reasons-- https://master.php.net/note/delete/69087 Reject -- https://master.php.net/note/reject/69087 Search -- https://master.php.net/manage/user-notes.php

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