Submitted by cesare on Wed, 2006-07-26 17:10 in Magic Parser
Hello David,
is there any easy way to display just a limited number of items (for ex. the first 2 items) out of a feed? And to display just the second (or n) item?
What you need to do is setup a global counter variable $counter, and then increment it within myRecordHandler(); and then study it to determine whether you want to process the current or any more records.
For example, if you just want the first 2 items:
<?php $counter = 0; function myRecordHandler($record) { global $counter; // increment counter $counter++; // process $record here print_r($record); // return TRUE when $counter = 2 to stop reading records return ($counter == 2); } MagicParser_parse("file.xml","myRecordHandler"); ?>
If you just want the 4th item you would do something like this:
<?php $counter = 0; function myRecordHandler($record) { global $counter; // increment counter $counter++; // we only want the 4th record if ($counter == 4) { // process $record here print_r($record); // return TRUE to stop reading any more records return TRUE; } } MagicParser_parse("file.xml","myRecordHandler"); ?>
Hi cesare,
What you need to do is setup a global counter variable $counter, and then increment it within myRecordHandler(); and then study it to determine whether you want to process the current or any more records.
For example, if you just want the first 2 items:
<?php$counter = 0;
function myRecordHandler($record)
{
global $counter;
// increment counter
$counter++;
// process $record here
print_r($record);
// return TRUE when $counter = 2 to stop reading records
return ($counter == 2);
}
MagicParser_parse("file.xml","myRecordHandler");
?>
If you just want the 4th item you would do something like this:
<?php$counter = 0;
function myRecordHandler($record)
{
global $counter;
// increment counter
$counter++;
// we only want the 4th record
if ($counter == 4)
{
// process $record here
print_r($record);
// return TRUE to stop reading any more records
return TRUE;
}
}
MagicParser_parse("file.xml","myRecordHandler");
?>
Cheers,
David.