output:
( ! ) Notice: Undefined variable: value_y6 in C:\wamp\www\PHP6\output.php
on line *228*
source:
<script type='text/javascript'> google.load('visualization', '1',
{'packages':['annotatedtimeline']}); google.setOnLoadCallback(drawChart);
function drawChart() { var data = new
google.visualization.DataTable(); data.addColumn('date', 'Date');
data.addColumn('number', 'Value'); data.addRows([
<?phpfor (6=1; 6<=90; 6++){echo: "[new Date(".1976."1, 1), ".."],";}?>
]); var chart = new
google.visualization.AnnotatedTimeLine(document.getElementById('chart_div1'));
chart.draw(data, {displayAnnotations: true}); } </script>
On Wednesday, 22 May 2013 12:09:32 UTC-4, asgallant wrote:
>
> The syntax looks a little odd to me, what does that output? Open the page
> in a browser, view the source, and paste the javascript here.
>
> On Wednesday, May 22, 2013 11:43:39 AM UTC-4, matt wrote:
>>
>> asgallant,
>>
>> Thanks. I did the following
>>
>> <script type='text/javascript'>
>>
>> google.load('visualization', '1', {'packages':[' annotatedtimeline']});
>> google.setOnLoadCallback(drawC hart);
>> function drawChart() {
>> var data = new google.visualization.DataTable ();
>> data.addColumn('date', 'Date');
>> data.addColumn('number', 'Data');
>> data.addRows([
>>
>> <?php>
>>
>> for ($i=1; $i<=120; $i++){
>>
>> echo: "[new Date(".${'y'.$i}."1, 1), ".${'value_y'.$i}."],";
>> /*
>> to output
>>
>> [new Date($y1, 1, 1), $value_y1],[new Date($y2, 1, 1), $value_y2],
>>
>> etc
>> */
>> }
>> </>
>>
>> ]);
>>
>> var chart = new google.visualization.Annotated
>> TimeLine(document.getElementBy Id('chart_div1'));
>> chart.draw(data, {displayAnnotations: true});
>> }
>> </script>
>>
>> This did not work. I got undefined variable error. Suggestion?
>>
>> Thanks,
>> Matt
>>
>>
>>
>> On Monday, 20 May 2013 09:46:40 UTC-4, asgallant wrote:
>>>
>>> The code you posted is looking for javascript variables like $y1 and
>>> isn't finding them. If you want to use your PHP variables, you have to
>>> echo them into the javascript:
>>>
>>> [new Date(<php echo $y1; ?>, 1, 1), <php echo $value_y1_1; ?>],
>>>
>>>
>>>
>>> On Monday, May 20, 2013 12:43:59 AM UTC-4, matt wrote:
>>>>
>>>> I want to use Google Annotated Time Line to generate a graph using
>>>> values generated from a PHP script, so far I have:
>>>>
>>>> <script type='text/javascript'>
>>>>
>>>>
>>>> google.load('visualization', '1', {'packages':['annotatedtimeline']});
>>>> google.setOnLoadCallback(drawChart);
>>>> function drawChart() {
>>>> var data = new google.visualization.DataTable();
>>>> data.addColumn('date', 'Date');
>>>> data.addColumn('number', 'Data');
>>>> data.addRows([
>>>>
>>>> [new Date($y1, 1, 1), $value_y1_1],
>>>> [new Date($y1, 2, 1), $value_y1_2],
>>>> [new Date($y1, 3, 1), $value_y1_3],
>>>>
>>>> ]);
>>>>
>>>> var chart = new
>>>> google.visualization.AnnotatedTimeLine(document.getElementById('chart_div1'));
>>>> chart.draw(data, {displayAnnotations: true});
>>>> }</script>
>>>>
>>>> I want to add more monthly data points, from $y1 to $y80, with the
>>>> corresponding $value. I used a for loop but got "undefined variable"
>>>> error.
>>>> Suggestions?
>>>>
>>>> Thanks!
>>>>
>>>>
>>>>
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