And do I need to use any other functions like mysql_fetch_row() ?
Martín marqués [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]...
On Sáb 24 Ago 2002 11:19, Tony Harrison wrote:
How would I count the number of rows in a mysql table with a WHERE
clause?
select count(*) from
]
Sent: Saturday, August 24, 2002 5:54 PM
Subject: Re: [PHP] Count number of rows in table.
And do I need to use any other functions like mysql_fetch_row() ?
Yes. It's a regular sql statement, so you must fetch the results.
$sql = select count(*) from table_name WHERE .;
$result = mysql_query
$sql = select count(*) from table_name WHERE .;
$result = mysql_query($sql) or die(mysql_error);
$row = mysql_fetch_row($result);
$rowCount=$row[0];
or
$sql = select count(*) from table_name WHERE .;
$result = mysql_query($sql) or die(mysql_error);
$rowCount=mysql_result($result);
or, you should be able to simply do this, without the cost of fetching
the results:
$result = mysql_query(SELECT count(*) FROM table WHERE);
$num_rows = mysql_num_rows($result);
echo $num_rows Rows\n;
$sql = select count(*) from table_name WHERE .;
$result = mysql_query($sql) or
On Sunday 25 August 2002 22:07, salamander wrote:
or, you should be able to simply do this, without the cost of fetching
the results:
$result = mysql_query(SELECT count(*) FROM table WHERE);
$num_rows = mysql_num_rows($result);
echo $num_rows Rows\n;
No. This only returns 1 row regardless.
okay, so then a select * and then a num_rows ...
On Sunday, August 25, 2002, at 10:11 AM, Jason Wong wrote:
On Sunday 25 August 2002 22:07, salamander wrote:
or, you should be able to simply do this, without the cost of fetching
the results:
$result = mysql_query(SELECT count(*) FROM table
I think you were on the right track with your first response. Selecting
a count(*) gives you the number of rows returned without the overhead of
actually returning all of the rows to PHP. Most people will rename the
count as something more easy to reference (and/or more descriptive) in
the
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