I should also mention I have changed this line of code :
$selectQuery = 'SELECT * FROM competitive_daily_volume';
$result = mysql_query($selectQuery);
$rows = array();
if($result){
while($row = mysql_fetch_assoc($result)){..........}
}
To this:
$selectQuery = 'SELECT * FROM competitive_daily_volume';
$rows = array();
if($result = mysql_query($selectQuery)){
while($row = mysql_fetch_array($result)){ ........}
}
But the rows is null, I don't think it enters the while loop when this file has
been called from the JavaScript.
Would appreciate any kind of help, thank you in advance
Sent from my iPhone
On 16 aug 2013, at 23:17, Razee <[email protected]> wrote:
> It seems that it doesn't enter the while loop when this file is called from
> the JavaScript. Could it be that the
>>> while($row = mysql_fetch_assoc($result))
>
> Blocks the Ajax when it's called, the rows on the Json string is null but
> cols is not and its correct when it's been passed.
>
> I really need help with this part I have been working on it for days, there
> is a mistake which I can't find.
>
>
> On 16 aug 2013, at 17:43, asgallant <[email protected]> wrote:
>
>> Your PHP code looks fine. Navigate to that script in a browser and see if
>> it is outputting a JSON string there.
>>
>> On Friday, August 16, 2013 8:37:56 AM UTC-4, Razee Hussein-Jamal wrote:
>>>
>>> Thank you for your help, this is the code I have inside the json.php the
>>> connection to database is done in a separate file, I don't get the JSON
>>> objects when I call this file in the ajax script.
>>>
>>> <?php
>>>
>>> $selectQuery = 'SELECT * FROM competitive_daily_volume';
>>> $result = mysql_query($selectQuery);
>>> $rows = array();
>>> if($result){
>>>
>>> while($row = mysql_fetch_assoc($result)){
>>> $temp = array();
>>> $temp[] = array("v"=> $row['Date']);
>>> $temp[] = array("v"=> $row['UserId']);
>>> $temp[] = array("v"=> $row['CementBrand']);
>>> $temp[] = array("v"=> $row['VolumeBGLP']);
>>> $temp[] = array("v"=> $row['Type']);
>>>
>>> $rows[] = array("c"=> $temp);
>>>
>>> }
>>>
>>> }
>>>
>>> $table = array();
>>> $table['cols'] = array(
>>> array("id"=>"A","label"=>"Date","type"=>"string"),
>>> array("id"=>"B","label"=>"User","type"=>"string"),
>>> array("id"=>"C","label"=>"Cement Brand","type"=>"string"),
>>> array("id"=>"D","label"=>"Volume","type"=>"string"),
>>> array("id"=>"E","label"=>"Type","type"=>"string")
>>> );
>>>
>>> $table['rows'] = $rows;
>>> $jsonObj = json_encode($table);
>>>
>>> echo $jsonObj;
>>>
>>> ?>
>>>
>>>
>>>
>>> On 12 August 2013 23:24, asgallant <[email protected]> wrote:
>>>> I don't get that error when I use your JSON:
>>>> http://jsfiddle.net/asgallant/R8tA9/. Can you post an example script
>>>> (preferably on jsfiddle, you can use the example I linked to as a starting
>>>> point) that replicates the issue?
>>>>
>>>>
>>>> On Monday, August 12, 2013 3:19:07 PM UTC-4, Razee Hussein-Jamal wrote:
>>>>>
>>>>> I am trying to view my JSON string I receive from a database and view it
>>>>> in google tables, however I receive this error: Invalid JSON string:
>>>>> error: 1046
>>>>>
>>>>> In viewTable.php a part of the script is :
>>>>>
>>>>> function drawVisualization() {
>>>>>
>>>>> var jsonData = $.ajax({
>>>>> url: "json.php", // make this url point to the data file
>>>>> dataType: "json",
>>>>> async: false
>>>>> }).responseText;
>>>>> var data = new google.visualization.DataTable(jsonData);
>>>>>
>>>>> visualization = new
>>>>> google.visualization.Table(document.getElementById('table'));
>>>>> visualization.draw(data, null);
>>>>>
>>>>> }
>>>>>
>>>>> in json.php file : I query data from database and encode it to JSON
>>>>> string which I then echo $jsonString,
>>>>>
>>>>> An example of JSON string output :
>>>>>
>>>>>
>>>>> {"cols":
>>>>> [{"id":"A","label":"Date","type":"string"},{"id":"B","label":"User","type":"string"},{"id":"C","label":"Cement
>>>>>
>>>>> Brand","type":"string"},{"id":"D","label":"Volume","type":"string"},{"id":"E","label":"Type","type":"string"}],
>>>>>
>>>>> "rows":
>>>>> [{"c":[{"v":"08-06-2013"},{"v":"[email protected]"},{"v":"Muthana"},{"v":"27"},{"v":"Local
>>>>> Plant"}]}]
>>>>>
>>>>> }
>>>>>
>>>>>
>>>>> I would really appreciate any help with this problem as I can't find the
>>>>> reason for this invalid JSON string as it seems to be correct. Thank you
>>>>
>>>> --
>>>> You received this message because you are subscribed to a topic in the
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>>>
>>>
>>>
>>> --
>>> Razee Hussein-Jamal
>>> Masters in Embedded Systems,
>>> Department of Information Technology,
>>> Uppsala University - Sweden
>>> Mobile Phone : +46764158553 (Sweden) , +9647701524721 (N.Iraq),
>>> +905058622477 (Turkey)
>>
>> --
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