Re: [PHP] Detecting empty query result?
On Tue, Aug 21, 2001 at 02:54:33PM +0100, Seb Frost wrote: Basically I want to check to see if $fileDir is already in my database. I do this as: $result = mysql_query(SELECT fileDir FROM shoots WHERE (fileDir='$fileDir')); How do I check the result? I normally use mysql_result($result, $row, $field) to read my result, but if I try that I get an error: if(mysql_result($result, $row, $field)) gives me: Warning: Unable to jump to row 0 on MySQL result index 3 cheers, - seb You're looking for: msql_num_rows() Try: http://www.php.net/manual/en/function.msql-num-rows.php -- * RzE: -- -- Renze Munnik -- DataLink BV -- -- E: [EMAIL PROTECTED] -- W: +31 23 5326162 -- F: +31 23 5322144 -- M: +31 6 21811143 -- -- Stationsplein 82 -- 2011 LM HAARLEM -- Netherlands -- -- http://www.datalink.nl -- -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
Re: [PHP] Detecting empty query result?
A good way to check if the result set is empty is to do put all statements
that work on the result set in an if-statement with the following condition:
if (mysql_numrows($result) != 0)
{
... code here ...
}
Hope this helps
DevilKin
At 14:54 21/08/2001 +0100, Seb Frost wrote:
Basically I want to check to see if $fileDir is already in my database. I
do this as:
$result = mysql_query(SELECT fileDir FROM shoots WHERE
(fileDir='$fileDir'));
How do I check the result? I normally use
mysql_result($result, $row, $field)
to read my result, but if I try that I get an error:
if(mysql_result($result, $row, $field))
gives me:
Warning: Unable to jump to row 0 on MySQL result index 3
cheers,
- seb
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RE: [PHP] Detecting empty query result?
just use mysql_num_rows($result) dummy :-) doh. sorry to bother y'all. -Original Message- From: Seb Frost [mailto:[EMAIL PROTECTED]] Sent: 21 August 2001 14:55 To: [EMAIL PROTECTED] Subject: [PHP] Detecting empty query result? Basically I want to check to see if $fileDir is already in my database. I do this as: $result = mysql_query(SELECT fileDir FROM shoots WHERE (fileDir='$fileDir')); How do I check the result? I normally use mysql_result($result, $row, $field) to read my result, but if I try that I get an error: if(mysql_result($result, $row, $field)) gives me: Warning: Unable to jump to row 0 on MySQL result index 3 cheers, - seb -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
