HI,
I'm a Java programmer and so not familiar with PHP, though looking at the examples on this site, I can deduce most of what the code is doing. Having said that, I am in a quandry about one section of PHP code in one of the examples: http://www.datatables.net/release-datatables/examples/data_sources/server_side.html
I've recreated the code in the PHP file with equivelant Java Server Page code.
First some background:
1. I'm accessing a database table named "employees" that contains 661 records.
2. The DataTable is set to retrieve 10 records at a time
The PHP example shows the following at the bottom of the file:
...
/* Data set length after filtering */
$sQuery = "SELECT FOUND_ROWS()";
$rResultFilterTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
$iFilteredTotal = $aResultFilterTotal[0];
/* Total data set length */
$sQuery = "SELECT COUNT(`".$sIndexColumn."`) FROM $sTable";
$rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$aResultTotal = mysql_fetch_array($rResultTotal);
$iTotal = $aResultTotal[0];
/*
* Output
*/
$output = array(
"sEcho" => intval($_GET['sEcho']),
"iTotalRecords" => $iTotal,
"iTotalDisplayRecords" => $iFilteredTotal,
"aaData" => array()
);
...
Notice the last statement for the variable $output. In order to allow the DataTable to work properly and enable the NEXT button so that I can retrieve the next set of 10 records, for my Java Server Page I had to code it so that iTotalRecords and iTotalDisplayRecords both contained the same value "661" (the total number of records). In other words I had to set both to the value contained in $iTotal.
I'm in a quandry as to what value $iFilteredTotal contains? I realize that running the query "SELECT FOUND_ROWS();" is going to return the value 10 if the previous query to the database limits the number to 10 records. But is that the value being placed in the variable $iFilteredTotal? Or does it contain the same value as $iTotal, and if so, please explain?
Alan
I'm a Java programmer and so not familiar with PHP, though looking at the examples on this site, I can deduce most of what the code is doing. Having said that, I am in a quandry about one section of PHP code in one of the examples: http://www.datatables.net/release-datatables/examples/data_sources/server_side.html
I've recreated the code in the PHP file with equivelant Java Server Page code.
First some background:
1. I'm accessing a database table named "employees" that contains 661 records.
2. The DataTable is set to retrieve 10 records at a time
The PHP example shows the following at the bottom of the file:
...
/* Data set length after filtering */
$sQuery = "SELECT FOUND_ROWS()";
$rResultFilterTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
$iFilteredTotal = $aResultFilterTotal[0];
/* Total data set length */
$sQuery = "SELECT COUNT(`".$sIndexColumn."`) FROM $sTable";
$rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
$aResultTotal = mysql_fetch_array($rResultTotal);
$iTotal = $aResultTotal[0];
/*
* Output
*/
$output = array(
"sEcho" => intval($_GET['sEcho']),
"iTotalRecords" => $iTotal,
"iTotalDisplayRecords" => $iFilteredTotal,
"aaData" => array()
);
...
Notice the last statement for the variable $output. In order to allow the DataTable to work properly and enable the NEXT button so that I can retrieve the next set of 10 records, for my Java Server Page I had to code it so that iTotalRecords and iTotalDisplayRecords both contained the same value "661" (the total number of records). In other words I had to set both to the value contained in $iTotal.
I'm in a quandry as to what value $iFilteredTotal contains? I realize that running the query "SELECT FOUND_ROWS();" is going to return the value 10 if the previous query to the database limits the number to 10 records. But is that the value being placed in the variable $iFilteredTotal? Or does it contain the same value as $iTotal, and if so, please explain?
Alan
