Re: mysql_num_rows

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INSERT queries and num_rows just don't go together.

And whatever you've done with mysql_affected_rows() is just some kind
of silly mistake on your part, almost for sure...



On Tue, May 30, 2006 11:28 pm, John Taylor-Johnston wrote:
> How can I get an integer value for mysql_affected_rows()? I get text:
>
>  " n Database Transfer(s)".
>
> I would like to create my own error flag and exit; if the number of
> affected rows is <= 0.
>
> The example for mysql-num-rows in the manual does not work. I have
> MySQL
> - 4.1.12.
>
> $num_rows = mysql_num_rows($result);
> echo "$num_rows Rows\n";
>
> http://ca3.php.net/manual/en/function.mysql-num-rows.php
>
> I get:
> Warning: mysql_num_rows(): supplied argument is not a valid MySQL
> result
> resource in /var/www/html2/db/tools/test.php on line 29
> Rows Database Transfer
>
> Here is my code.
>
> --------------------------------------------------------------------------------
>
> $sql ="insert into `jtjohnston`.`ccl`
> (RNum,YR,AU,ST,SD,SC,BT,BD,BC,AT,AD,AC,SR,PL,PR,JR,VNum,INum,DT,PG,LG,SF,OL,KW,AUS,TUS,GEO,AN,RB,SA,CO,RR)
>
> select
> RNum,YR,AU,ST,SD,SC,BT,BD,BC,AT,AD,AC,SR,PL,PR,JR,VNum,INum,DT,PG,LG,SF,OL,KW,AUS,TUS,GEO,AN,RB,SA,
> CONCAT(`CO`,' <Transfered: ".date("F jS, Y, g:i a").">;'),RR
> FROM ".$_POST["dbtable"]."
> WHERE id=".$_POST["transferthis"].";";
>
> echo "<pre>".htmlspecialchars($sql)."</pre><hr size=\"1\">\n";
>
> $myconnection = mysql_connect($server,$user,$pass);
> mysql_select_db($db,$myconnection);
>
> $result = mysql_query($sql) or die(print mysql_error());
>
> echo mysql_affected_rows();
> #$num_rows = mysql_num_rows($result);
> #echo "$num_rows Rows\n";
>
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