ajax在每小时/每日/每周/每月数据调用时发生错误

Question

我在OpenLayers上有一个热图应用程序，用户输入两个日期和时间间隔并选择他/她是否希望查看这两个日期时间之间的所有数据或根据每小时/每日/每周/每月的时间间隔查看它们。但是，当我输入两个日期和时间作为输入并尝试显示数据时，我只能看到这两个时间间隔之间的所有数据。每当我从我的HTML下拉菜单中选择小时，每日，每周等，然后按提取查询按钮，我会在Ajax POST消息中得到一个错误。这可能是什么原因？该代码如下所示：

的HTML邮政部分：

$(document).ready(function(){ 

// ajaxForm submission 
$('#ajaxForm').submit(function() { 
    $.ajax({ 
    type: 'POST', 
    url: 'heatQuery.php', 
    //url: 'http://localhost/heatQuery.php', 
    data: $(this).serialize(), 
    dataType: 'json', 
    success: function(response) 
    { 
     // update the points for heatmap layer   
     updateHeatMap(response); 

    }, 
    error: function(errorMsg) 
    { 
     alert('Error in Ajax POST'); 
     } 


    }); 

    return false; 
}); 
}); 

PHP的一部分：

setupDB.php

<?php 

$mysql_hostname = "localhost"; 
$mysql_user = "myuser"; 
$mysql_password = "mypassword"; 
$mysql_database = "mydatabase"; 
$bd = mysql_connect($mysql_hostname, $mysql_user) or die("Oops some thing went wrong"); 
    mysql_select_db($mysql_database, $bd) or die("Oops some thing went wrong"); 

?> 

heatQuery.php

<?php 
include 'setupDB.php'; 
$coords_array = array(); 

function getPoints($dateTimeBeg,$dateTimeEnd) 
{ 
$ses_sql= "SELECT lat,lon FROM `mytable` WHERE calltime >= '$dateTimeBeg' AND calltime <= '$dateTimeEnd'"; 
    $result = mysql_query($ses_sql,$bd) or die('Error: ' . mysql_error()); 
    if($result) 
    { 
     $num_of_rows = mysql_num_rows($result); 
     if($num_of_rows > 0) 
     { 
      while($row = mysql_fetch_row($result)) 
      { 
       array_push($coords,array($row[0],$row[1]));  
      } 
      array_push($coords_array,$coords); 
     } 
    } 
} 

$hours = array(1 => '00:00', '01:00', '02:00', '03:00', '04:00', '05:00', '06:00', '07:00', '08:00', '09:00', '10:00', '11:00', '12:00', '13:00', '14:00', '15:00', '16:00', '17:00', '18:00', '19:00', '20:00', '21:00', '22:00', '23:00', '24:00'); 

$dateBeg = isset($_POST['date1']) ? $_POST['date1'] : ""; 
$dateEnd = isset($_POST['date2']) ? $_POST['date2'] : ""; 
$dateFreq = isset($_POST['freq']) ? $_POST['freq'] : ""; 

if($dateBeg && $dateEnd && $dateFreq) // if all variables are set 
{ 
    $datetime1 = new DateTime($dateBeg); 
    $datetime2 = new DateTime($dateEnd); 
    $interval = $datetime1->diff($datetime2,true); 

    if($dateFreq == "all") 
    { 
     $coords = array(); 
     $timeBeg = $_POST['time1']; 
     $timeEnd = $_POST['time2']; 
     $sp = " "; 
     $dateTimeBeg = $dateBeg.$sp.$timeBeg; 
     $dateTimeEnd = $dateEnd.$sp.$timeEnd; 
     $ses_sql= "SELECT lat,lon FROM `mytable` WHERE calltime >= '$dateTimeBeg' AND calltime <= '$dateTimeEnd'"; 
    $result = mysql_query($ses_sql,$bd) or die('Error: ' . mysql_error()); 
    if($result) 
    { 
     $num_of_rows = mysql_num_rows($result); 
     if($num_of_rows > 0) 
     { 
      while($row = mysql_fetch_row($result)) 
      { 
       array_push($coords,array($row[0],$row[1]));  
      } 
      array_push($coords_array,$coords); 
     } 
    } 

    }else if($dateFreq == "hourly") 
    {  
     for($i=1;$i<=24;$i+=1) 
     { 
      $coords = array(); 
      $timeBeg = $hours[$i]; 
      $timeEnd = $hours[$i+1]; 
      $dateTimeBeg = $dateBeg.$sp.$timeBeg; 
      $dateTimeEnd = $dateBeg.$sp.$timeEnd; 
      $ses_sql= "SELECT lat,lon FROM `mytable` WHERE calltime >= '$dateTimeBeg' AND calltime <= '$dateTimeEnd'"; 
    $result = mysql_query($ses_sql,$bd) or die('Error: ' . mysql_error()); 
    if($result) 
    { 
     $num_of_rows = mysql_num_rows($result); 
     if($num_of_rows > 0) 
     { 
      while($row = mysql_fetch_row($result)) 
      { 
       array_push($coords,array($row[0],$row[1]));  
      } 
      array_push($coords_array,$coords); 
     } 
    } 

     } 
    }else if($dateFreq == "daily") 
    { 
     for($i=1;$i<=interval;$i+=1) 
     { 
      $ses_sql= "SELECT lat,lon FROM `mytable` WHERE calltime >= '$dateTimeBeg' AND calltime <= '$dateTimeEnd'"; 
    $result = mysql_query($ses_sql,$bd) or die('Error: ' . mysql_error()); 
    if($result) 
    { 
     $num_of_rows = mysql_num_rows($result); 
     if($num_of_rows > 0) 
     { 
      while($row = mysql_fetch_row($result)) 
      { 
       array_push($coords,array($row[0],$row[1]));  
      } 
      array_push($coords_array,$coords); 
     } 
    } 
     } 
    } 

    $coords_json = json_encode($coords_array); 
    echo $coords_json; 

//echo $coords; 

    mysql_close($bd); 
} 

?> 

编辑：

每bPratik的要求，我也把对HTML代码替代后的错误，包括我从服务器获取错误：

error: function(jqXHR, textStatus, errorThrown) 
    { 

     alert('Error in Ajax POST\ntextStatus: ' + textStatus + '\nerrorThrown: ' + errorThrown); 
    } 

尽管把这个，我只得到在AJAX留言信息错误。奇怪的是，mysqld.exe进程运行了一段时间 - 显然它实际上是在检索查询的同时 - 然后我收到消息。

Answer 1

前段时间解决了这个问题，很快就会发布详情。