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Posted by Michael Gross on 12/30/05 02:57
"read" is a reserved word in mysql
(http://dev.mysql.com/doc/refman/5.0/en/reserved-words.html). You have
to double-quote reserved words:
mysql_query("SELECT * FROM mailbox WHERE \"read\"=''");
Graham Cossey wrote:
> On 12/29/05, Jay Blanchard <jay.blanchard@thermon.com> wrote:
>> [snip]
>> could you please tell me what is the problem with this query
>> mysql_query("SELECT * FROM mailbox WHERE read=''");
>>
>> i always get this warning:
>> Warning: mysql_num_rows(): supplied argument is not a valid MySQL
>> result resource in index.php on line 24
>> [/snip]
>>
>> THere is no apparent problem with the query, but there is a problem with
>> mysql_num_rows(). Can you show us he code there?
>>
> I would hazard a guess that mysql_num_rows() is not being passed the
> correct query result handle as a parameter.
>
> ie: $result = mysql_query(...);
> $rows = mysql_num_rows($result);
>
> --
> Graham
>
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