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$(document).ready(function() {
$('#example').dataTable( {
"bProcessing": true,
"bServerSide": true,
"sAjaxSource": "../examples_support/server_processing.php"
} );
} );
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<i>DataTables</i> server-side processing example
</div>
<h1>Preamble</h1>
<p>There are many ways to get your data into DataTables, and if you are working with seriously large databases, you might want to consider using the server-side options that DataTables provides. Basically all of the paging, filtering, sorting etc that DataTables does can be handed off to a server (or any other data source - Google Gears or Adobe Air for example!) and DataTables is just an events and display module.</p>
<p>The example here shows a very simple display of the CSS data (used in all my other examples), but in this instance coming from the server on each draw. Filtering, multi-column sorting etc all work as you would expect.</p>
<h1>Live example</h1>
<div id="dynamic">
<table cellpadding="0" cellspacing="0" border="0" class="display" id="example">
<thead>
<tr>
<th width="20%">Rendering engine</th>
<th width="25%">Browser</th>
<th width="25%">Platform(s)</th>
<th width="15%">Engine version</th>
<th width="15%">CSS grade</th>
</tr>
</thead>
<tbody>
<tr>
<td colspan="5" class="dataTables_empty">Loading data from server</td>
</tr>
</tbody>
<tfoot>
<tr>
<th>Rendering engine</th>
<th>Browser</th>
<th>Platform(s)</th>
<th>Engine version</th>
<th>CSS grade</th>
</tr>
</tfoot>
</table>
</div>
<div class="spacer"></div>
<h1>Initialisation code</h1>
<pre>$(document).ready(function() {
$('#example').dataTable( {
"bProcessing": true,
"bServerSide": true,
"sAjaxSource": "../examples_support/server_processing.php"
} );
} );</pre>
<h1>Server side (PHP) code</h1>
<pre><?php
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Easy set variables
*/
/* Array of database columns which should be read and sent back to DataTables. Use a space where
* you want to insert a non-database field (for example a counter or static image)
*/
$aColumns = array( 'engine', 'browser', 'platform', 'version', 'grade' );
/* Indexed column (used for fast and accurate table cardinality) */
$sIndexColumn = "id";
/* DB table to use */
$sTable = "ajax";
/* Database connection information */
$gaSql['user'] = "";
$gaSql['password'] = "";
$gaSql['db'] = "";
$gaSql['server'] = "localhost";
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* If you just want to use the basic configuration for DataTables with PHP server-side, there is
* no need to edit below this line
*/
/*
* MySQL connection
*/
$gaSql['link'] = mysql_pconnect( $gaSql['server'], $gaSql['user'], $gaSql['password'] ) or
die( 'Could not open connection to server' );
mysql_select_db( $gaSql['db'], $gaSql['link'] ) or
die( 'Could not select database '. $gaSql['db'] );
/*
* Paging
*/
$sLimit = "";
if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
{
$sLimit = "LIMIT ".mysql_real_escape_string( $_GET['iDisplayStart'] ).", ".
mysql_real_escape_string( $_GET['iDisplayLength'] );
}
/*
* Ordering
*/
if ( isset( $_GET['iSortCol_0'] ) )
{
$sOrder = "ORDER BY ";
for ( $i=0 ; $i<intval( $_GET['iSortingCols'] ) ; $i++ )
{
if ( $_GET[ 'bSortable_'.intval($_GET['iSortCol_'.$i]) ] == "true" )
{
$sOrder .= $aColumns[ intval( $_GET['iSortCol_'.$i] ) ]."
".mysql_real_escape_string( $_GET['sSortDir_'.$i] ) .", ";
}
}
$sOrder = substr_replace( $sOrder, "", -2 );
if ( $sOrder == "ORDER BY" )
{
$sOrder = "";
}
}
/*
* Filtering
* NOTE this does not match the built-in DataTables filtering which does it
* word by word on any field. It's possible to do here, but concerned about efficiency
* on very large tables, and MySQL's regex functionality is very limited
*/
$sWhere = "";
if ( $_GET['sSearch'] != "" )
{
$sWhere = "WHERE (";
for ( $i=0 ; $i<count($aColumns) ; $i++ )
{
$sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string( $_GET['sSearch'] )."%' OR ";
}
$sWhere = substr_replace( $sWhere, "", -3 );
$sWhere .= ')';
}
/* Individual column filtering */
for ( $i=0 ; $i<count($aColumns) ; $i++ )
{
if ( $_GET['bSearchable_'.$i] == "true" && $_GET['sSearch_'.$i] != '' )
{
if ( $sWhere == "" )
{
$sWhere = "WHERE ";
}
else
{
$sWhere .= " AND ";
}
$sWhere .= $aColumns[$i]." LIKE '%".mysql_real_escape_string($_GET['sSearch_'.$i])."%' ";
}
}
/*
* SQL queries
* Get data to display
*/
$sQuery = "
SELECT SQL_CALC_FOUND_ROWS ".str_replace(" , ", " ", implode(", ", $aColumns))."
FROM $sTable
$sWhere
$sOrder
$sLimit
";
$rResult = mysql_query( $sQuery, $gaSql['link'] ) or die(mysql_error());
/* 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
*/
$sOutput = '{';
$sOutput .= '"sEcho": '.intval($_GET['sEcho']).', ';
$sOutput .= '"iTotalRecords": '.$iTotal.', ';
$sOutput .= '"iTotalDisplayRecords": '.$iFilteredTotal.', ';
$sOutput .= '"aaData": [ ';
while ( $aRow = mysql_fetch_array( $rResult ) )
{
$sOutput .= "[";
for ( $i=0 ; $i<count($aColumns) ; $i++ )
{
if ( $aColumns[$i] == "version" )
{
/* Special output formatting for 'version' */
$sOutput .= ($aRow[ $aColumns[$i] ]=="0") ?
'"-",' :
'"'.str_replace('"', '\"', $aRow[ $aColumns[$i] ]).'",';
}
else if ( $aColumns[$i] != ' ' )
{
/* General output */
$sOutput .= '"'.str_replace('"', '\"', $aRow[ $aColumns[$i] ]).'",';
}
}
/*
* Optional Configuration:
* If you need to add any extra columns (add/edit/delete etc) to the table, that aren't in the
* database - you can do it here
*/
$sOutput = substr_replace( $sOutput, "", -1 );
$sOutput .= "],";
}
$sOutput = substr_replace( $sOutput, "", -1 );
$sOutput .= '] }';
echo $sOutput;
?></pre>
<h1>Other examples</h1>
<h2>Basic initialisation</h2>
<ul>
<li><a href="../basic_init/zero_config.html">Zero configuration</a></li>
<li><a href="../basic_init/filter_only.html">Feature enablement</a></li>
<li><a href="../basic_init/table_sorting.html">Sorting data</a></li>
<li><a href="../basic_init/multi_col_sort.html">Multi-column sorting</a></li>
<li><a href="../basic_init/multiple_tables.html">Multiple tables</a></li>
<li><a href="../basic_init/hidden_columns.html">Hidden columns</a></li>
<li><a href="../basic_init/dom.html">DOM positioning</a></li>
<li><a href="../basic_init/state_save.html">State saving</a></li>
<li><a href="../basic_init/alt_pagination.html">Alternative pagination styles</a></li>
<li>Scrolling:
<a href="../basic_init/scroll_x.html">Horizontal</a> /
<a href="../basic_init/scroll_y.html">Vertical</a> /
<a href="../basic_init/scroll_xy.html">Both</a> /
<a href="../basic_init/scroll_y_theme.html">Themed</a>
</li>
<li><a href="../basic_init/language.html">Change language information (internationalisation)</a></li>
<li><a href="../basic_init/themes.html">ThemeRoller themes (Smoothness)</a></li>
</ul>
<h2>Advanced initialisation</h2>
<ul>
<li><a href="../advanced_init/events_pre_init.html">Events (pre initialisation)</a></li>
<li><a href="../advanced_init/events_post_init.html">Events (post initialisation)</a></li>
<li><a href="../advanced_init/column_render.html">Column rendering</a></li>
<li><a href="../advanced_init/html_sort.html">Sorting without HTML tags</a></li>
<li><a href="../advanced_init/dom_multiple_elements.html">Multiple table controls (sDom)</a></li>
<li><a href="../advanced_init/length_menu.html">Defining length menu options</a></li>
<li><a href="../advanced_init/dom_toolbar.html">Custom toolbar (element) around table</a></li>
<li><a href="../advanced_init/highlight.html">Row highlighting with CSS</a></li>
<li><a href="../advanced_init/complex_header.html">Column grouping through col/row spans</a></li>
<li><a href="../advanced_init/row_grouping.html">Row grouping</a></li>
<li><a href="../advanced_init/row_callback.html">Row callback</a></li>
<li><a href="../advanced_init/footer_callback.html">Footer callback</a></li>
<li><a href="../advanced_init/language_file.html">Change language information from a file (internationalisation)</a></li>
</ul>
<h2>Data sources</h2>
<ul>
<li><a href="../data_sources/dom.html">DOM</a></li>
<li><a href="../data_sources/js_array.html">Javascript array</a></li>
<li><a href="../data_sources/ajax.html">Ajax source</a></li>
<li><a href="../data_sources/server_side.html">Server side processing</a></li>
</ul>
<h2>Server-side processing</h2>
<ul>
<li><a href="../server_side/server_side.html">Obtain server-side data</a></li>
<li><a href="../server_side/custom_vars.html">Add extra HTTP variables</a></li>
<li><a href="../server_side/post.html">Use HTTP POST</a></li>
<li><a href="../server_side/column_ordering.html">Custom column ordering (in callback data)</a></li>
<li><a href="../server_side/pipeline.html">Pipelining data (reduce Ajax calls for paging)</a></li>
<li><a href="../server_side/row_details.html">Show and hide details about a particular record</a></li>
<li><a href="../server_side/select_rows.html">User selectable rows (multiple rows)</a></li>
</ul>
<h2>API</h2>
<ul>
<li><a href="../api/add_row.html">Dynamically add a new row</a></li>
<li><a href="../api/multi_filter.html">Individual column filtering (using "input" elements)</a></li>
<li><a href="../api/multi_filter_select.html">Individual column filtering (using "select" elements)</a></li>
<li><a href="../api/highlight.html">Highlight rows and columns</a></li>
<li><a href="../api/row_details.html">Show and hide details about a particular record</a></li>
<li><a href="../api/select_row.html">User selectable rows (multiple rows)</a></li>
<li><a href="../api/select_single_row.html">User selectable rows (single row) and delete rows</a></li>
<li><a href="../api/editable.html">Editable rows (with jEditable)</a></li>
<li><a href="../api/form.html">Submit form with elements in table</a></li>
<li><a href="../api/counter_column.html">Index column (static number column)</a></li>
<li><a href="../api/show_hide.html">Show and hide columns dynamically</a></li>
<li><a href="../api/api_in_init.html">API function use in initialisation object (callback)</a></li>
<li><a href="../api/tabs_and_scrolling.html">DataTables scrolling and tabs</a></li>
<li><a href="../api/regex.html">Regular expression filtering</a></li>
</ul>
<h2>Plug-ins</h2>
<ul>
<li><a href="../plug-ins/plugin_api.html">Add custom API functions</a></li>
<li><a href="../plug-ins/sorting_plugin.html">Sorting and type detection</a></li>
<li><a href="../plug-ins/paging_plugin.html">Custom pagination controls</a></li>
<li><a href="../plug-ins/range_filtering.html">Range filtering / custom filtering</a></li>
<li><a href="../plug-ins/dom_sort.html">Live DOM sorting</a></li>
<li><a href="../plug-ins/html_sort.html">Automatic HTML type detection</a></li>
</ul>
<p>Please refer to the <a href="http://www.datatables.net/"><i>DataTables</i> documentation</a> for full information about its API properties and methods.</p>
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<span style="font-size:10px;">DataTables © Allan Jardine 2008-2010</span>
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