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Old September 17th, 2003, 01:47 AM
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Default Parameter passing


I am trying to understand the online polls example shown in the book PHP-MySQL Programming page 286. I guess it is related to the issue of parameter passing between a PHP script and a PHP class. There are 2 elements involved:

1 - ../polls/index.php, a script that calls the function getActivePolls($iCursor) from the class.polls.php to populate dynamically an array called $aPoll. The $iCursor variable is derived from a URL query and can take the value 0,1 or 2 via a $_GET["cursor"]. The array is defined as follows:

$aPoll = $oPolls->getActivePolls($iCursor);

2 - ../class.polls.php, an object class that includes, among others, the above function called getActivePolls(), with one argument $iPage, that retrieves a particular poll from a MySQL table, in the following way:

function getActivePolls($iPage=0) {

$sql = "SELECT poll_id,poll_vote_cnt,poll_question
        FROM tab_polls
        WHERE status=1 AND deleted =0
        ORDER BY created_dt DESC
        LIMIT ".$iPage.",1;

//...some more code to check DB error


My Problem:

I cannot get $iPage to vary dynamically in sync with $iCursor, so as to be able to paginate through all three different polls (for $iPage=0,then 1, then 2), as input for $iCursor itself is derived from a pagination form defined in ../polls/index.php.

Thanks in advance for a clue.

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