[PHP-DB] PHP Objects and SQL Results
Hi all,
I'm currently having a problem correctly formatting a table within a
while loop. I'm using an object to store the results of a query, and
using the while to iterate through it each row to produce the output:
$query = SELECT * FROM foo WHERE UserID = .$uID . ORDER BY bar;
$result = mysql_query($query);
while($obj = mysql_fetch_object($result))
{
$obj-bar;
}
To properly format the table, I need to check the value of bar in the
next iteration of the object (but have to do it on the current one).
Using an array, I would do:
next($obj);
if($obj[bar] == something)
{
//do things
}
prev($obj);
Is there an equivalent to object? I've tried the above method, but
nothing happens. I've also tried type casting it to an array, without
success.
Is there anyway to iterate through this?
Thanks,
Paul
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Re: [PHP-DB] PHP Objects and SQL Results
On Sat, Feb 13, 2010 at 3:26 AM, Paul devine...@msn.com wrote:
Hi all,
I'm currently having a problem correctly formatting a table within a while
loop. I'm using an object to store the results of a query, and using the
while to iterate through it each row to produce the output:
$query = SELECT * FROM foo WHERE UserID = .$uID . ORDER BY bar;
$result = mysql_query($query);
while($obj = mysql_fetch_object($result))
{
$obj-bar;
}
To properly format the table, I need to check the value of bar in the next
iteration of the object (but have to do it on the current one). Using an
array, I would do:
next($obj);
if($obj[bar] == something)
{
//do things
}
prev($obj);
Is there an equivalent to object? I've tried the above method, but nothing
happens. I've also tried type casting it to an array, without success.
Is there anyway to iterate through this?
Paul
Is this the one you want ?
$sql = 'select id, name from test';
$result = mysql_query($sql);
$rows = array();
$row = null;
while ($row = mysql_fetch_object($result))
{
$rows[] = $row;
}
reset($rows);
for ($i = 0, $c = sizeof($rows) - 1; $i $c; $i++)
{
next($rows);
if (current($rows)-name)
{
// something to do
}
prev($rows);
echo current($rows)-id, ' ', current($rows)-name, \n;
next($rows);
}
if (current($rows))
{
echo current($rows)-id, ' ', current($rows)-name, \n;
}
Regards,
Eric,
Thanks,
Paul
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Re: [PHP-DB] PHP Objects and SQL Results
Thanks for the code Eric, it seems to loosely provide the functionality
that I'm after.
Just out of interest though, is there no other way to find the next
result row in an object apart from dumping it into an array?
Thanks,
Paul
Eric Lee wrote:
On Sat, Feb 13, 2010 at 3:26 AM, Paul devine...@msn.com wrote:
Hi all,
I'm currently having a problem correctly formatting a table within a while
loop. I'm using an object to store the results of a query, and using the
while to iterate through it each row to produce the output:
$query = SELECT * FROM foo WHERE UserID = .$uID . ORDER BY bar;
$result = mysql_query($query);
while($obj = mysql_fetch_object($result))
{
$obj-bar;
}
To properly format the table, I need to check the value of bar in the next
iteration of the object (but have to do it on the current one). Using an
array, I would do:
next($obj);
if($obj[bar] == something)
{
//do things
}
prev($obj);
Is there an equivalent to object? I've tried the above method, but nothing
happens. I've also tried type casting it to an array, without success.
Is there anyway to iterate through this?
Paul
Is this the one you want ?
$sql = 'select id, name from test';
$result = mysql_query($sql);
$rows = array();
$row = null;
while ($row = mysql_fetch_object($result))
{
$rows[] = $row;
}
reset($rows);
for ($i = 0, $c = sizeof($rows) - 1; $i $c; $i++)
{
next($rows);
if (current($rows)-name)
{
// something to do
}
prev($rows);
echo current($rows)-id, ' ', current($rows)-name, \n;
next($rows);
}
if (current($rows))
{
echo current($rows)-id, ' ', current($rows)-name, \n;
}
Regards,
Eric,
Thanks,
Paul
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Re: [PHP-DB] PHP Objects and SQL Results
Hi Paul,
Can't you just?
$query = SELECT DISTINCT bar FROM foo WHERE UserID = .$uID;
$result = mysql_query($query);
while($obj = mysql_fetch_assoc($result) {
$bar = $obj['bar'];
if ($bar == something) {
//do this
}
}
I'm some what a beginner, so sorry if this wastes your time.
Karl
On Feb 12, 2010, at 1:26 PM, Paul wrote:
Hi all,
I'm currently having a problem correctly formatting a table within
a while loop. I'm using an object to store the results of a query,
and using the while to iterate through it each row to produce the
output:
$query = SELECT * FROM foo WHERE UserID = .$uID . ORDER BY bar;
$result = mysql_query($query);
while($obj = mysql_fetch_object($result))
{
$obj-bar;
}
To properly format the table, I need to check the value of bar in
the next iteration of the object (but have to do it on the current
one). Using an array, I would do:
next($obj);
if($obj[bar] == something)
{
//do things
}
prev($obj);
Is there an equivalent to object? I've tried the above method, but
nothing happens. I've also tried type casting it to an array,
without success.
Is there anyway to iterate through this?
Thanks,
Paul
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To unsubscribe, visit: http://www.php.net/unsub.php
Karl DeSaulniers
Design Drumm
http://designdrumm.com
Re: [PHP-DB] PHP Objects and SQL Results
On Sat, Feb 13, 2010 at 7:46 AM, Paul Hollingworth devine...@msn.comwrote:
Thanks for the code Eric, it seems to loosely provide the functionality
that I'm after.
Just out of interest though, is there no other way to find the next result
row in an object apart from dumping it into an array?
Paul
Apologize !
I think no. The resource returned by mysql_query acts like a pointer (or
cursor on database side) that point to the current record
in result set. Before it is able advanced to the next the record must
retrieved first.
Might some design patterns be help for your situation.
And wait for some php pros that master in this area.
Regards,
Eric
Thanks,
Paul
Eric Lee wrote:
On Sat, Feb 13, 2010 at 3:26 AM, Paul devine...@msn.com wrote:
Hi all,
I'm currently having a problem correctly formatting a table within a
while
loop. I'm using an object to store the results of a query, and using the
while to iterate through it each row to produce the output:
$query = SELECT * FROM foo WHERE UserID = .$uID . ORDER BY bar;
$result = mysql_query($query);
while($obj = mysql_fetch_object($result))
{
$obj-bar;
}
To properly format the table, I need to check the value of bar in the
next
iteration of the object (but have to do it on the current one). Using an
array, I would do:
next($obj);
if($obj[bar] == something)
{
//do things
}
prev($obj);
Is there an equivalent to object? I've tried the above method, but
nothing
happens. I've also tried type casting it to an array, without success.
Is there anyway to iterate through this?
Paul
Is this the one you want ?
$sql = 'select id, name from test';
$result = mysql_query($sql);
$rows = array();
$row = null;
while ($row = mysql_fetch_object($result))
{
$rows[] = $row;
}
reset($rows);
for ($i = 0, $c = sizeof($rows) - 1; $i $c; $i++)
{
next($rows);
if (current($rows)-name)
{
// something to do
}
prev($rows);
echo current($rows)-id, ' ', current($rows)-name, \n;
next($rows);
}
if (current($rows))
{
echo current($rows)-id, ' ', current($rows)-name, \n;
}
Regards,
Eric,
Thanks,
Paul
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