JSON數據表錯誤

-2

首先，讓我指定我不知道JSON的工作原理。我不是一個強大的編碼員。當我改變!=到==那裏說$sWhere .= "status == '".APS_DONE."'";我得到的說，一個JSON解析錯誤：JSON數據表錯誤

「的DataTable警告：從服務器JSON數據無法解析這由JSON格式錯誤造成的。」

任何線索是什麼意思。

<?php 
include('aps2.database.php'); 
include('aps2.login.php'); 

*********** COMPLETED REQUEST PROCESSING CODE 



$sTable = 'aps2_requests'; 

$aColumns = array('rid', 'description', 'creatoruid', 'photoguid'); 
$sIndexColumn = 'description'; 

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

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 = ""; 
    } 
} 

$sWhere = ""; 
if ($_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])."%' "; 
    } 
} 

if(strlen($sWhere) > 1) 
{ 
    $sWhere .= " AND "; 
} 
else 
{ 
    $sWhere = "WHERE "; 
} 

$sWhere .= "status == '".APS_DONE."'"; 

/* 
* 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) or die(mysql_error()); 

/* Data set length after filtering */ 
$sQuery = " 
    SELECT FOUND_ROWS() 
"; 
$rResultFilterTotal = mysql_query($sQuery) 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) 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() 
); 

while ($aRow = mysql_fetch_array($rResult)) 
{ 
    $row = array(); 
    for ($i=0 ; $i<count($aColumns) ; $i++) 
    { 
     if ($aColumns[$i] == "version") 
     { 
      $row[] = ($aRow[ $aColumns[$i] ]=="0") ? '-' : $aRow[ $aColumns[$i] ]; 
     } 
     else if ($aColumns[$i] != ' ') 
     { 
      if ($aColumns[$i] == 'creatoruid') 
      { 
       $row[] = '<p style="margin: 5px;">' . aps2_user_name_from_uid($aRow[$aColumns[$i]]) . '</p>'; 
      } 
      else if ($aColumns[$i] == 'photoguid') 
      { 
       $row[] = '<p style="margin: 5px;">' . aps2_get_request_photographer_or_status($aRow['rid']) . '</p>'; 
      } 
      else if ($aColumns[$i] == 'description') 
      { 
       $row[] = '<p style="margin: 5px 10px;line-height: 1.2em;">' . stripslashes(preview_text_truncate($aRow[ $aColumns[$i] ])) . '</p>'; 
      } 
      else 
      { 
       $row[] = $aRow[ $aColumns[$i] ]; 
      } 
     } 
    } 

    $status = aps2_get_request_status($aRow['rid']); 


    $actionButtons = '<a class="actionbutton greenlink viewbutton" href="' . $aRow['rid'] . '">View</a>'; 
    $actionButtons .= '<a class="actionbutton greenlink uploadbutton" href="' . $aRow['rid'] . '">Upload</a>'; 


    if (($status == APS_UNASSIGNED || $status == APS_IN_PROGRESS) && aps2_get_user_role($_SESSION['uid']) > APS_STANDARD) 
    { 
     $actionButtons .= '<a class="actionbutton greenlink acceptbutton" href="' . $aRow['rid'] . '">Accept</a>'; 
    } 

    if (($aRow['creatoruid'] == $_SESSION['uid'] && aps2_get_request_status($aRow['rid']) == APS_UNASSIGNED) || $_SESSION['uid'] == 1) 
    { 
     $actionButtons .= '<a class="actionbutton greenlink deletebutton" href="' . $aRow['rid'] . '">Delete</a>'; 
    } 

    $row[] = '<div style="margin:3px 3px 6px 3px;text-align:center;">'.$actionButtons.'</div>'; 
    $output['aaData'][] = $row; 
} 

echo json_encode($output); 
?>

來源

2013-09-24 Derek

JSON在哪裏？ –

這看起來像SQL代碼。 – luiscubal

json不「工作」。它只是一個javascript數據結構的文本表示。幾乎字面上它是JS中變量賦值的右邊，例如'var foo = this_is_the_json_here'。 –

此代碼生成SQL代碼，然後執行它。

當您有$sWhere .= "status != '".APS_DONE."'";時，它將查找狀態不等於APS_DONE的錶行。

MySQL中沒有==運算符（see the list for yourself），所以當您替換！= by ==時，您將獲得無效的SQL代碼。

我猜這輸出一個MySQL錯誤消息，這是無效的JSON。使用=代替==。

來源

2013-09-24 21:28:05 luiscubal

完全解答了我的問題。謝謝。 :) – Derek

JSON數據表錯誤

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