Php 数据表显示问题

Php 数据表显示问题,php,jquery,ajax,datatables,Php,Jquery,Ajax,Datatables,我正在使用一个插件来显示表中的数据。我正在使用server_processing.php脚本,它正在返回数据。问题是所有记录都返回到页面顶部,然后在底部插件正常工作 该页面可在以下位置查看: php文件是 <?php /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Easy set variables */ /* Array of data

我正在使用一个插件来显示表中的数据。我正在使用server_processing.php脚本,它正在返回数据。问题是所有记录都返回到页面顶部,然后在底部插件正常工作

该页面可在以下位置查看:

php文件是

<?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('fname', 'mi', 'lname','occup', 'age', 'dod', 'town','state');

/* Indexed column (used for fast and accurate table cardinality) */
$sIndexColumn = "vic_id";

/* DB table to use */
$sTable = "victims";

/* Database connection information */
$gaSql['user']       = "xxx";
$gaSql['password']   = "xxx_RT";
$gaSql['db']         = "xx_xxx";
$gaSql['server']     = "xxxx";

/* REMOVE THIS LINE (it just includes my SQL connection user/pass) */
//include( $_SERVER['DOCUMENT_ROOT']."/datatables/mysql.php" );


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * If you just want to use the basic configuration for DataTables with PHP server-side, there is
 * no need to edit below this line
 */

/* 
 * Local functions
 */
function fatal_error ( $sErrorMessage = '' )
{
    header( $_SERVER['SERVER_PROTOCOL'] .' 500 Internal Server Error' );
    die( $sErrorMessage );
}


/* 
 * MySQL connection
 */
if ( ! $gaSql['link'] = mysql_pconnect( $gaSql['server'], $gaSql['user'], $gaSql['password']  ) )
{
    fatal_error( 'Could not open connection to server' );
}

if ( ! mysql_select_db( $gaSql['db'], $gaSql['link'] ) )
{
    fatal_error( 'Could not select database ' );
}


/* 
 * Paging
 */
$sLimit = "";
if ( isset( $_GET['iDisplayStart'] ) && $_GET['iDisplayLength'] != '-1' )
{
    $sLimit = "LIMIT ".intval( $_GET['iDisplayStart'] ).", ".
        intval( $_GET['iDisplayLength'] );
}


/*
 * Ordering
 */
$sOrder = "";
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] ) ]."` ".
                ($_GET['sSortDir_'.$i]==='asc' ? 'asc' : 'desc') .", ";
        }
    }

    $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
 */
$sWhere = "";
if ( isset($_GET['sSearch']) && $_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) ; $i++ )
{
    if ( isset($_GET['bSearchable_'.$i]) && $_GET['bSearchable_'.$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 fatal_error( 'MySQL Error: ' . mysql_errno() );

/* Data set length after filtering */
$sQuery = "
    SELECT FOUND_ROWS()
";
$rResultFilterTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
$aResultFilterTotal = mysql_fetch_array($rResultFilterTotal);
$iFilteredTotal = $aResultFilterTotal[0];

/* Total data set length */
$sQuery = "
    SELECT COUNT(`".$sIndexColumn."`)
    FROM   $sTable
";
$rResultTotal = mysql_query( $sQuery, $gaSql['link'] ) or fatal_error( 'MySQL Error: ' . mysql_errno() );
$aResultTotal = mysql_fetch_array($rResultTotal);
$iTotal = $aResultTotal[0];


/*
 * Output
 */
$output = array(
    "sEcho" => intval($_GET['sEcho']),
    "iTotalRecords" => $iTotal,
    "iTotalDisplayRecords" => $iFilteredTotal,
    "aaData" => array()
);

while ( $aRow = mysql_fetch_array( $rResult ) )
{
    $row = array();
    for ( $i=0 ; $i<count($aColumns) ; $i++ )
    {
        if ( $aColumns[$i] == "version" )
        {
            /* Special output formatting for 'version' column */
            $row[] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ];
        }
        else if ( $aColumns[$i] != ' ' )
        {
            /* General output */
            $row[] = $aRow[ $aColumns[$i] ];
        }
    }
    $output['aaData'][] = $row;
}

echo json_encode( $output );
?>

问题是html的第一行,您不需要包含服务器处理php文件,ajax调用正在收集json对象以供datatables使用

所有这些代码都是必需的吗?请删除所有这些膨胀代码,只发布相关部分。不确定php,但这一行“echo json_encode($output);”是否将json数据输出到屏幕上?Sujesh Arukil-是的,但它是必需的(没有它页面无法运行),所有示例都显示了这一行。有趣的发展,当我注释掉这一行时,结果现在在页面的列中显示“第1行数据1”“第1行数据2”。Jay,非常感谢,我不会想到这一点。GaryMy认为这就是stackoverflow存在的原因,另一双眼睛,干杯
       <?php 
include ('server_processing.php');
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Untitled Document</title>


<!--<link href="css/shThemeDataTables.css" rel="stylesheet" type="text/css" media="all">-->
<!--<link href="css/shCore.css" rel="stylesheet" type="text/css" media="all">-->
<!--<link href="css/doc.css" rel="stylesheet" type="text/css" media="all">-->
<link href="css/demo_table.css" rel="stylesheet" type="text/css" media="all">
<script type="text/javascript" charset="utf-8" src="js/jquery.js"></script>
<script type="text/javascript" charset="utf-8" src="js/jquery.dataTables.js"></script>
<script>
$(document).ready(function() {
    $('#table_id').dataTable( {
        "bProcessing": true,
        "bServerSide": true,
        "sAjaxSource": "server_processing.php"
    } );
} );

</script>
</head>

<body>

<table id="table_id"  class="display">
    <thead>
        <tr>
            <th>First Name</th>
            <th>MI</th>
            <th>Last Name</th>
            <th>Branch of Service</th>
             <th>Age</th>
              <th>Date of Death</th>
               <th>Town</th>
               <th>State</th>
        </tr>
    </thead>
 <tbody>
        <tr>
            <td></td>
            <td></td>
             <td></td>
            <td></td>
             <td></td>
            <td></td>
             <td></td>


        </tr>

    </tbody>
</table>



</body>
</html>