Hello,
I am trying to use Ajax.Updater to send a javascript variable value to
MySQL.
To simplify matters I just want to see what is sent first so I have
<script type="text/javascript">
function send(){
var params = counter;
new Ajax.Updater(''updateDiv'', ''send.php'',
{asynchronous:true,method:''get'', parameters:params});
}
counter being the javascript variable value.
Question is - what should I have in the sever side php file?
At the moment in send.php I have
<?php
echo "Hello <p>";
$cue = $_GET[''params''];
echo $cue;
?>
The Hello does appear on the page but the $cue does not.
How should I do this?!
Cheers
Geoff
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Hello,
I am trying to use Ajax.Updater to send a javascript variable value to
MySQL.
To simplify matters I just want to see what is sent first so I have
<script type="text/javascript">
function send(){
var params = counter;
new Ajax.Updater(''updateDiv'', ''send.php'',
{asynchronous:true,method:''get'', parameters:params});
}
counter being the javascript variable value.
Question is - what should I have in the sever side php file?
At the moment in send.php I have
<?php
echo "Hello <p>";
$cue = $_GET[''params''];
echo $cue;
?>
The Hello does appear on the page but the $cue does not.
How should I do this?!
Cheers
Geoff
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No idea why my message appears twice!!?? Geoff On 3 Mar, 09:02, geoffcox <geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> Hello, > > I am trying to use Ajax.Updater to send a javascript variable value to > MySQL. > > To simplify matters I just want to see what is sent first so I have > > <script type="text/javascript"> > function send(){ > var params = counter; > new Ajax.Updater(''updateDiv'', ''send.php'', > {asynchronous:true,method:''get'', parameters:params}); > > } > > counter being the javascript variable value. > > Question is - what should I have in the sever side php file? > > At the moment in send.php I have > > <?php > echo "Hello <p>"; > $cue = $_GET[''params'']; > echo $cue; > ?> > > The Hello does appear on the page but the $cue does not. > > How should I do this?! > > Cheers > > Geoff--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Spinoffs" group. To post to this group, send email to rubyonrails-spinoffs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-spinoffs-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-spinoffs?hl=en -~----------~----~----~----~------~----~------~--~---
Geoff,
The parameters you send with a request are name/value pairs. The
''parameters'' option to Ajax.request can accept either a
url-encoded
string, or any Hash-compatible object from which it can get the names
and values to send (see http://www.prototypejs.org/api/ajax/options).
From the code you posted, unless ''counter'' is a url-encoded
string of
some kind, you''re not giving any name to your counter value.
Perhaps this:
function send(){
var params = $H({ count: counter });
new Ajax.Updater(
''updateDiv'',
''send.php'',
{
asynchronous:true,
method:''get'',
parameters: params
}
);
}
With this PHP:
<?php
echo "Hello <p>";
$cue = $_GET[''count''];
echo $cue;
?>
In the send() method, I''m creating an object with one property (count)
set to the value of the counter variable, and then wrapping that in a
hash via $H (I''m not sure you really need to do that; you might try it
without the $H call and see if it works). (I could have done all that
within the call to Ajax.Updater, but I thought it would be clearer
doing it separately.) Then in the PHP, I''m retrieving the
''count''
parameter.
Hope this helps,
--
T.J. Crowder
tj / crowder software / com
On Mar 3, 9:04 am, geoffcox
<geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> No idea why my message appears twice!!?? Geoff
>
> On 3 Mar, 09:02, geoffcox
<geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > Hello,
>
> > I am trying to use Ajax.Updater to send a javascript variable value to
> > MySQL.
>
> > To simplify matters I just want to see what is sent first so I have
>
> > <script type="text/javascript">
> > function send(){
> > var params = counter;
> > new Ajax.Updater(''updateDiv'',
''send.php'',
> > {asynchronous:true,method:''get'',
parameters:params});
>
> > }
>
> > counter being the javascript variable value.
>
> > Question is - what should I have in the sever side php file?
>
> > At the moment in send.php I have
>
> > <?php
> > echo "Hello <p>";
> > $cue = $_GET[''params''];
> > echo $cue;
> > ?>
>
> > The Hello does appear on the page but the $cue does not.
>
> > How should I do this?!
>
> > Cheers
>
> > Geoff
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Many thanks - it works fine and also works with just
var params = ({ count: counter });
Could you explain how the above works?
Cheers
Geoff
On 3 Mar, 10:31, "T.J. Crowder"
<tjcrow...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Geoff,
>
> The parameters you send with a request are name/value pairs. The
> ''parameters'' option to Ajax.request can accept either a
url-encoded
> string, or any Hash-compatible object from which it can get the names
> and values to send (seehttp://www.prototypejs.org/api/ajax/options).
> From the code you posted, unless ''counter'' is a
url-encoded string of
> some kind, you''re not giving any name to your counter value.
>
> Perhaps this:
>
> function send(){
> var params = $H({ count: counter });
> new Ajax.Updater(
> ''updateDiv'',
> ''send.php'',
> {
> asynchronous:true,
> method:''get'',
> parameters: params
> }
> );
>
> }
>
> With this PHP:
>
> <?php
> echo "Hello <p>";
> $cue = $_GET[''count''];
> echo $cue;
> ?>
>
> In the send() method, I''m creating an object with one property
(count)
> set to the value of the counter variable, and then wrapping that in a
> hash via $H (I''m not sure you really need to do that; you might
try it
> without the $H call and see if it works). (I could have done all that
> within the call to Ajax.Updater, but I thought it would be clearer
> doing it separately.) Then in the PHP, I''m retrieving the
''count''
> parameter.
>
> Hope this helps,
> --
> T.J. Crowder
> tj / crowder software / com
>
> On Mar 3, 9:04 am, geoffcox
<geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > No idea why my message appears twice!!?? Geoff
>
> > On 3 Mar, 09:02, geoffcox
<geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > Hello,
>
> > > I am trying to use Ajax.Updater to send a javascript variable
value to
> > > MySQL.
>
> > > To simplify matters I just want to see what is sent first so I
have
>
> > > <script type="text/javascript">
> > > function send(){
> > > var params = counter;
> > > new Ajax.Updater(''updateDiv'',
''send.php'',
> > > {asynchronous:true,method:''get'',
parameters:params});
>
> > > }
>
> > > counter being the javascript variable value.
>
> > > Question is - what should I have in the sever side php file?
>
> > > At the moment in send.php I have
>
> > > <?php
> > > echo "Hello <p>";
> > > $cue = $_GET[''params''];
> > > echo $cue;
> > > ?>
>
> > > The Hello does appear on the page but the $cue does not.
>
> > > How should I do this?!
>
> > > Cheers
>
> > > Geoff
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re var params = ({ count: counter });
I have just realised that the above is equivalent to
var params = ''count='' + counter;
Correct?
Cheers
Geoff
On 3 Mar, 10:31, "T.J. Crowder"
<tjcrow...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Geoff,
>
> The parameters you send with a request are name/value pairs. The
> ''parameters'' option to Ajax.request can accept either a
url-encoded
> string, or any Hash-compatible object from which it can get the names
> and values to send (seehttp://www.prototypejs.org/api/ajax/options).
> From the code you posted, unless ''counter'' is a
url-encoded string of
> some kind, you''re not giving any name to your counter value.
>
> Perhaps this:
>
> function send(){
> var params = $H({ count: counter });
> new Ajax.Updater(
> ''updateDiv'',
> ''send.php'',
> {
> asynchronous:true,
> method:''get'',
> parameters: params
> }
> );
>
> }
>
> With this PHP:
>
> <?php
> echo "Hello <p>";
> $cue = $_GET[''count''];
> echo $cue;
> ?>
>
> In the send() method, I''m creating an object with one property
(count)
> set to the value of the counter variable, and then wrapping that in a
> hash via $H (I''m not sure you really need to do that; you might
try it
> without the $H call and see if it works). (I could have done all that
> within the call to Ajax.Updater, but I thought it would be clearer
> doing it separately.) Then in the PHP, I''m retrieving the
''count''
> parameter.
>
> Hope this helps,
> --
> T.J. Crowder
> tj / crowder software / com
>
> On Mar 3, 9:04 am, geoffcox
<geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > No idea why my message appears twice!!?? Geoff
>
> > On 3 Mar, 09:02, geoffcox
<geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > Hello,
>
> > > I am trying to use Ajax.Updater to send a javascript variable
value to
> > > MySQL.
>
> > > To simplify matters I just want to see what is sent first so I
have
>
> > > <script type="text/javascript">
> > > function send(){
> > > var params = counter;
> > > new Ajax.Updater(''updateDiv'',
''send.php'',
> > > {asynchronous:true,method:''get'',
parameters:params});
>
> > > }
>
> > > counter being the javascript variable value.
>
> > > Question is - what should I have in the sever side php file?
>
> > > At the moment in send.php I have
>
> > > <?php
> > > echo "Hello <p>";
> > > $cue = $_GET[''params''];
> > > echo $cue;
> > > ?>
>
> > > The Hello does appear on the page but the $cue does not.
>
> > > How should I do this?!
>
> > > Cheers
>
> > > Geoff
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Hi Geoff,> it works fine and also works with just > var params = ({ count: counter });Good, good; I thought it probably would, since JavaScript objects are essentially hashes anyway.> re var params = ({ count: counter }); > I have just realised that the above is equivalent to > var params = ''count='' + counter; > Correct?No, they''re different. This defines an object with a count property: var params = { count: counter }; This defines a url-encoded string (provided ''counter'' is numeric or something): var params = ''count='' + counter; The ''parameters'' input to Ajax.Updater allows you to supply either. If you supply a Hash-like object, Ajax.Updater just converts it to a url- encoded string for you. -- T.J. Crowder tj / crowder software / com On Mar 3, 10:57 am, geoffcox <geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> re var params = ({ count: counter }); > > I have just realised that the above is equivalent to > > var params = ''count='' + counter; > > Correct? > > Cheers > > Geoff > > On 3 Mar, 10:31, "T.J. Crowder" <tjcrow...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > Geoff, > > > The parameters you send with a request are name/value pairs. The > > ''parameters'' option to Ajax.request can accept either a url-encoded > > string, or any Hash-compatible object from which it can get the names > > and values to send (seehttp://www.prototypejs.org/api/ajax/options). > > From the code you posted, unless ''counter'' is a url-encoded string of > > some kind, you''re not giving any name to your counter value. > > > Perhaps this: > > > function send(){ > > var params = $H({ count: counter }); > > new Ajax.Updater( > > ''updateDiv'', > > ''send.php'', > > { > > asynchronous:true, > > method:''get'', > > parameters: params > > } > > ); > > > } > > > With this PHP: > > > <?php > > echo "Hello <p>"; > > $cue = $_GET[''count'']; > > echo $cue; > > ?> > > > In the send() method, I''m creating an object with one property (count) > > set to the value of the counter variable, and then wrapping that in a > > hash via $H (I''m not sure you really need to do that; you might try it > > without the $H call and see if it works). (I could have done all that > > within the call to Ajax.Updater, but I thought it would be clearer > > doing it separately.) Then in the PHP, I''m retrieving the ''count'' > > parameter. > > > Hope this helps, > > -- > > T.J. Crowder > > tj / crowder software / com > > > On Mar 3, 9:04 am, geoffcox <geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > No idea why my message appears twice!!?? Geoff > > > > On 3 Mar, 09:02, geoffcox <geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > Hello, > > > > > I am trying to use Ajax.Updater to send a javascript variable value to > > > > MySQL. > > > > > To simplify matters I just want to see what is sent first so I have > > > > > <script type="text/javascript"> > > > > function send(){ > > > > var params = counter; > > > > new Ajax.Updater(''updateDiv'', ''send.php'', > > > > {asynchronous:true,method:''get'', parameters:params}); > > > > > } > > > > > counter being the javascript variable value. > > > > > Question is - what should I have in the sever side php file? > > > > > At the moment in send.php I have > > > > > <?php > > > > echo "Hello <p>"; > > > > $cue = $_GET[''params'']; > > > > echo $cue; > > > > ?> > > > > > The Hello does appear on the page but the $cue does not. > > > > > How should I do this?! > > > > > Cheers > > > > > Geoff--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Spinoffs" group. To post to this group, send email to rubyonrails-spinoffs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-spinoffs-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-spinoffs?hl=en -~----------~----~----~----~------~----~------~--~---
On 3 Mar, 13:32, "T.J. Crowder" <tjcrow...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> Hi Geoff,> > re var params = ({ count: counter }); > > I have just realised that the above is equivalent to > > var params = ''count='' + counter; > > Correct? > > No, they''re different. This defines an object with a count property: > > var params = { count: counter }; > > This defines a url-encoded string (provided ''counter'' is numeric or > something): > > var params = ''count='' + counter; > > The ''parameters'' input to Ajax.Updater allows you to supply either. If > you supply a Hash-like object, Ajax.Updater just converts it to a url- > encoded string for you.OK thanks for the info. Cheers Geoff> -- > T.J. Crowder > tj / crowder software / com > > On Mar 3, 10:57 am, geoffcox <geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > re var params = ({ count: counter }); > > > I have just realised that the above is equivalent to > > > var params = ''count='' + counter; > > > Correct? > > > Cheers > > > Geoff > > > On 3 Mar, 10:31, "T.J. Crowder" <tjcrow...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > Geoff, > > > > The parameters you send with a request are name/value pairs. The > > > ''parameters'' option to Ajax.request can accept either a url-encoded > > > string, or any Hash-compatible object from which it can get the names > > > and values to send (seehttp://www.prototypejs.org/api/ajax/options). > > > From the code you posted, unless ''counter'' is a url-encoded string of > > > some kind, you''re not giving any name to your counter value. > > > > Perhaps this: > > > > function send(){ > > > var params = $H({ count: counter }); > > > new Ajax.Updater( > > > ''updateDiv'', > > > ''send.php'', > > > { > > > asynchronous:true, > > > method:''get'', > > > parameters: params > > > } > > > ); > > > > } > > > > With this PHP: > > > > <?php > > > echo "Hello <p>"; > > > $cue = $_GET[''count'']; > > > echo $cue; > > > ?> > > > > In the send() method, I''m creating an object with one property (count) > > > set to the value of the counter variable, and then wrapping that in a > > > hash via $H (I''m not sure you really need to do that; you might try it > > > without the $H call and see if it works). (I could have done all that > > > within the call to Ajax.Updater, but I thought it would be clearer > > > doing it separately.) Then in the PHP, I''m retrieving the ''count'' > > > parameter. > > > > Hope this helps, > > > -- > > > T.J. Crowder > > > tj / crowder software / com > > > > On Mar 3, 9:04 am, geoffcox <geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > No idea why my message appears twice!!?? Geoff > > > > > On 3 Mar, 09:02, geoffcox <geoffa...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > Hello, > > > > > > I am trying to use Ajax.Updater to send a javascript variable value to > > > > > MySQL. > > > > > > To simplify matters I just want to see what is sent first so I have > > > > > > <script type="text/javascript"> > > > > > function send(){ > > > > > var params = counter; > > > > > new Ajax.Updater(''updateDiv'', ''send.php'', > > > > > {asynchronous:true,method:''get'', parameters:params}); > > > > > > } > > > > > > counter being the javascript variable value. > > > > > > Question is - what should I have in the sever side php file? > > > > > > At the moment in send.php I have > > > > > > <?php > > > > > echo "Hello <p>"; > > > > > $cue = $_GET[''params'']; > > > > > echo $cue; > > > > > ?> > > > > > > The Hello does appear on the page but the $cue does not. > > > > > > How should I do this?! > > > > > > Cheers > > > > > > Geoff--~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Spinoffs" group. To post to this group, send email to rubyonrails-spinoffs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-spinoffs-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-spinoffs?hl=en -~----------~----~----~----~------~----~------~--~---