note 19841 added to function.mysql-fetch-array
| From: | mjm at porter dot appstate dot edu | Date: | Wed, 13 Mar 2002 00:48:24 +0000 |
| Subject: | note 19841 added to function.mysql-fetch-array | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-27694@lists.php.net to get a copy of this message | ||
If you perform a SELECT query which returns different columns with duplicate names, like this:
--------
$sql_statement = "SELECT tbl1.colA, tbl2.colA FROM tbl1 LEFT JOIN tbl2 ON tbl1.colC =
tbl2.colC";
$result = mysql_query($sql_statement, $handle);
$row = mysql_fetch_array($result);
--------
Then
$row[0] is equivalent to $row["colA"]
but
$row[1] is not equivalent to $row["colA"].
Moral of the story: You must use the numerical index on the result row arrays if column names are
not unique, even if they come from different tables within a JOIN. This would render
mysql_fetch_assoc() useless.
--
http://www.php.net/manual/en/function.mysql-fetch-array.php
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