calling variable in onchange function

**Reply Via Newsgroup** · Jul 23 '05, 10:16 AM

Re: calling variable in onchange function

R.G. Vervoort wrote:
[color=blue]
> I am using a javafunction (onclick in select) in which i am calling a
> function in php (thats why i send this to both php and javascript
> newsgroups).
>
> in the onclick i call the function "Place_Selected " with the value from the
> select (naam_keuze.val ue)
>
> in the function the value becomes the $zoek_id and searches in the database
> for the record with the id of $zoek_id
>
> the naam_keuze.valu e does not give the value to $zoek_id
>
> When i replace naam_keuze.valu e for a number (15) i works great.
>
> WHAT AM I DOING WRONG?
>
>
> This is my code
>
>
>
> Function Place_Selected( $zoek_id)
> {
> include("data.p hp");
> $link=mysql_con nect($db_host, $username, $password) or die("Database
> error!");
> mysql_select_db ($database , $link)or die("Couldn't open $db:
> ".mysql_error() );
> $sql=mysql_quer y("SELECT * FROM specialismen WHERE id='$zoek_id'") ;
>
> if ($sql)
> {
> while($blah2 = mysql_fetch_arr ay($sql))
> {
> $newsid = $blah2['id'];
> $sticky = $blah2['naam'];
> }
> }
> return("documen t.form.achterna am.value='$stic ky'");
> }
>
>
> <select id=naam_keuze size=1 name=keuze style=visibilit y:hidden
> onchange=".Plac e_Selected('naa m_keuze.value') .";document.for m.voornaam.valu e
> =naam_keuze.val ue;>
> <option value=0>Kies
> $options
> </select>
>
> Thanks for suggestions
>
> roy
>
>[/color]

I don't see how it could work, even with a numeric value of 15... What
version of PHP are you using?

Here's why I think it shouldn't work...

Javascript is client side - PHP is server side... thus, you attempt to
call Place_Selected (PHP code) in your onChange event - This won't
happen unless you hava a javascript function with that name that submits
the form contents to the server via a FORM POST or GET...

Also... The value for your select box should I believe end up in
$_POST['keuze'] in PHP when the form is submitted...

And... return("documen t.form.achterna am.value='$stic ky'");
Again, you've got your knickers in a twist - the return statement will
not return a value into achternaam like I think you expect... I really
think you are misunderstandin g how the two technologies fit together...

If you are sure that your test will work when you enter 15 as a test
value - try different numbers to confirm that test works - If it does,
then I think you've not provided the entire code here for me (perhaps
anyone else) to give a full and proper answer/suggestion.

Does any of the above help?
randelld

**R.G. Vervoort** · Jul 23 '05, 10:16 AM

Re: calling variable in onchange function

it works great, as long as the number (15 or ...) is an id in the database.
i just will not accept the "." (dot) in the line

"Reply Via Newsgroup" <reply-to-newsgroup@pleas e.com> schreef in bericht
news:J9kfc.1214 95$Ig.78826@pd7 tw2no...[color=blue]
> R.G. Vervoort wrote:
>[color=green]
> > I am using a javafunction (onclick in select) in which i am calling a
> > function in php (thats why i send this to both php and javascript
> > newsgroups).
> >
> > in the onclick i call the function "Place_Selected " with the value from[/color][/color]
the[color=blue][color=green]
> > select (naam_keuze.val ue)
> >
> > in the function the value becomes the $zoek_id and searches in the[/color][/color]
database[color=blue][color=green]
> > for the record with the id of $zoek_id
> >
> > the naam_keuze.valu e does not give the value to $zoek_id
> >
> > When i replace naam_keuze.valu e for a number (15) i works great.
> >
> > WHAT AM I DOING WRONG?
> >
> >
> > This is my code
> >
> >
> >
> > Function Place_Selected( $zoek_id)
> > {
> > include("data.p hp");
> > $link=mysql_con nect($db_host, $username, $password) or die("Database
> > error!");
> > mysql_select_db ($database , $link)or die("Couldn't open $db:
> > ".mysql_error() );
> > $sql=mysql_quer y("SELECT * FROM specialismen WHERE id='$zoek_id'") ;
> >
> > if ($sql)
> > {
> > while($blah2 = mysql_fetch_arr ay($sql))
> > {
> > $newsid = $blah2['id'];
> > $sticky = $blah2['naam'];
> > }
> > }
> > return("documen t.form.achterna am.value='$stic ky'");
> > }
> >
> >
> > <select id=naam_keuze size=1 name=keuze style=visibilit y:hidden
> >[/color][/color]
onchange=".Plac e_Selected('naa m_keuze.value') .";document.for m.voornaam.valu e[color=blue][color=green]
> > =naam_keuze.val ue;>
> > <option value=0>Kies
> > $options
> > </select>
> >
> > Thanks for suggestions
> >
> > roy
> >
> >[/color]
>
> I don't see how it could work, even with a numeric value of 15... What
> version of PHP are you using?
>
> Here's why I think it shouldn't work...
>
> Javascript is client side - PHP is server side... thus, you attempt to
> call Place_Selected (PHP code) in your onChange event - This won't
> happen unless you hava a javascript function with that name that submits
> the form contents to the server via a FORM POST or GET...
>
> Also... The value for your select box should I believe end up in
> $_POST['keuze'] in PHP when the form is submitted...
>
> And... return("documen t.form.achterna am.value='$stic ky'");
> Again, you've got your knickers in a twist - the return statement will
> not return a value into achternaam like I think you expect... I really
> think you are misunderstandin g how the two technologies fit together...
>
> If you are sure that your test will work when you enter 15 as a test
> value - try different numbers to confirm that test works - If it does,
> then I think you've not provided the entire code here for me (perhaps
> anyone else) to give a full and proper answer/suggestion.
>
> Does any of the above help?
> randelld[/color]

**Savut** · Jul 23 '05, 10:17 AM

Re: calling variable in onchange function

Place_Selected( 'naam_keuze.val ue')

you have passed the value of a javascript, this can't work, you have to
explicitely write the value or a php variable, because you are in a php
statement (server side, so no javascript value here).

Savut

"R.G. Vervoort" <roy.vervoort@r oyvervoort.nl> wrote in message
news:407dd2d3$0 $570$e4fe514c@n ews.xs4all.nl.. .[color=blue]
> it works great, as long as the number (15 or ...) is an id in the
> database.
> i just will not accept the "." (dot) in the line
>
>
>
> "Reply Via Newsgroup" <reply-to-newsgroup@pleas e.com> schreef in bericht
> news:J9kfc.1214 95$Ig.78826@pd7 tw2no...[color=green]
>> R.G. Vervoort wrote:
>>[color=darkred]
>> > I am using a javafunction (onclick in select) in which i am calling a
>> > function in php (thats why i send this to both php and javascript
>> > newsgroups).
>> >
>> > in the onclick i call the function "Place_Selected " with the value from[/color][/color]
> the[color=green][color=darkred]
>> > select (naam_keuze.val ue)
>> >
>> > in the function the value becomes the $zoek_id and searches in the[/color][/color]
> database[color=green][color=darkred]
>> > for the record with the id of $zoek_id
>> >
>> > the naam_keuze.valu e does not give the value to $zoek_id
>> >
>> > When i replace naam_keuze.valu e for a number (15) i works great.
>> >
>> > WHAT AM I DOING WRONG?
>> >
>> >
>> > This is my code
>> >
>> >
>> >
>> > Function Place_Selected( $zoek_id)
>> > {
>> > include("data.p hp");
>> > $link=mysql_con nect($db_host, $username, $password) or die("Database
>> > error!");
>> > mysql_select_db ($database , $link)or die("Couldn't open $db:
>> > ".mysql_error() );
>> > $sql=mysql_quer y("SELECT * FROM specialismen WHERE id='$zoek_id'") ;
>> >
>> > if ($sql)
>> > {
>> > while($blah2 = mysql_fetch_arr ay($sql))
>> > {
>> > $newsid = $blah2['id'];
>> > $sticky = $blah2['naam'];
>> > }
>> > }
>> > return("documen t.form.achterna am.value='$stic ky'");
>> > }
>> >
>> >
>> > <select id=naam_keuze size=1 name=keuze style=visibilit y:hidden
>> >[/color][/color]
> onchange=".Plac e_Selected('naa m_keuze.value') .";document.for m.voornaam.valu e[color=green][color=darkred]
>> > =naam_keuze.val ue;>
>> > <option value=0>Kies
>> > $options
>> > </select>
>> >
>> > Thanks for suggestions
>> >
>> > roy
>> >
>> >[/color]
>>
>> I don't see how it could work, even with a numeric value of 15... What
>> version of PHP are you using?
>>
>> Here's why I think it shouldn't work...
>>
>> Javascript is client side - PHP is server side... thus, you attempt to
>> call Place_Selected (PHP code) in your onChange event - This won't
>> happen unless you hava a javascript function with that name that submits
>> the form contents to the server via a FORM POST or GET...
>>
>> Also... The value for your select box should I believe end up in
>> $_POST['keuze'] in PHP when the form is submitted...
>>
>> And... return("documen t.form.achterna am.value='$stic ky'");
>> Again, you've got your knickers in a twist - the return statement will
>> not return a value into achternaam like I think you expect... I really
>> think you are misunderstandin g how the two technologies fit together...
>>
>> If you are sure that your test will work when you enter 15 as a test
>> value - try different numbers to confirm that test works - If it does,
>> then I think you've not provided the entire code here for me (perhaps
>> anyone else) to give a full and proper answer/suggestion.
>>
>> Does any of the above help?
>> randelld[/color]
>
>[/color]

**R.G. Vervoort** · Jul 23 '05, 10:17 AM

Re: calling variable in onchange function

ok

I can see that it is a problem (for me)

but....

I can call a php function (with the ". ...... .") in the onchange (wich is
javascript as i believe), is it not possible to call the javascript into a
php function or to decalare a variable and the call it in the function
(since it is possible to put a variable in the function wich works).

thanks anyway

Roy

"Savut" <webki@hotmail. com> schreef in bericht
news:GjAfc.2704 7$vF3.1605768@n ews20.bellgloba l.com...[color=blue]
> Place_Selected( 'naam_keuze.val ue')
>
> you have passed the value of a javascript, this can't work, you have to
> explicitely write the value or a php variable, because you are in a php
> statement (server side, so no javascript value here).
>
> Savut
>
> "R.G. Vervoort" <roy.vervoort@r oyvervoort.nl> wrote in message
> news:407dd2d3$0 $570$e4fe514c@n ews.xs4all.nl.. .[color=green]
> > it works great, as long as the number (15 or ...) is an id in the
> > database.
> > i just will not accept the "." (dot) in the line
> >
> >
> >
> > "Reply Via Newsgroup" <reply-to-newsgroup@pleas e.com> schreef in bericht
> > news:J9kfc.1214 95$Ig.78826@pd7 tw2no...[color=darkred]
> >> R.G. Vervoort wrote:
> >>
> >> > I am using a javafunction (onclick in select) in which i am calling a
> >> > function in php (thats why i send this to both php and javascript
> >> > newsgroups).
> >> >
> >> > in the onclick i call the function "Place_Selected " with the value[/color][/color][/color]
from[color=blue][color=green]
> > the[color=darkred]
> >> > select (naam_keuze.val ue)
> >> >
> >> > in the function the value becomes the $zoek_id and searches in the[/color]
> > database[color=darkred]
> >> > for the record with the id of $zoek_id
> >> >
> >> > the naam_keuze.valu e does not give the value to $zoek_id
> >> >
> >> > When i replace naam_keuze.valu e for a number (15) i works great.
> >> >
> >> > WHAT AM I DOING WRONG?
> >> >
> >> >
> >> > This is my code
> >> >
> >> >
> >> >
> >> > Function Place_Selected( $zoek_id)
> >> > {
> >> > include("data.p hp");
> >> > $link=mysql_con nect($db_host, $username, $password) or die("Database
> >> > error!");
> >> > mysql_select_db ($database , $link)or die("Couldn't open $db:
> >> > ".mysql_error() );
> >> > $sql=mysql_quer y("SELECT * FROM specialismen WHERE id='$zoek_id'") ;
> >> >
> >> > if ($sql)
> >> > {
> >> > while($blah2 = mysql_fetch_arr ay($sql))
> >> > {
> >> > $newsid = $blah2['id'];
> >> > $sticky = $blah2['naam'];
> >> > }
> >> > }
> >> > return("documen t.form.achterna am.value='$stic ky'");
> >> > }
> >> >
> >> >
> >> > <select id=naam_keuze size=1 name=keuze style=visibilit y:hidden
> >> >[/color]
> >[/color][/color]
onchange=".Plac e_Selected('naa m_keuze.value') .";document.for m.voornaam.valu e[color=blue][color=green][color=darkred]
> >> > =naam_keuze.val ue;>
> >> > <option value=0>Kies
> >> > $options
> >> > </select>
> >> >
> >> > Thanks for suggestions
> >> >
> >> > roy
> >> >
> >> >
> >>
> >> I don't see how it could work, even with a numeric value of 15... What
> >> version of PHP are you using?
> >>
> >> Here's why I think it shouldn't work...
> >>
> >> Javascript is client side - PHP is server side... thus, you attempt to
> >> call Place_Selected (PHP code) in your onChange event - This won't
> >> happen unless you hava a javascript function with that name that[/color][/color][/color]
submits[color=blue][color=green][color=darkred]
> >> the form contents to the server via a FORM POST or GET...
> >>
> >> Also... The value for your select box should I believe end up in
> >> $_POST['keuze'] in PHP when the form is submitted...
> >>
> >> And... return("documen t.form.achterna am.value='$stic ky'");
> >> Again, you've got your knickers in a twist - the return statement will
> >> not return a value into achternaam like I think you expect... I really
> >> think you are misunderstandin g how the two technologies fit together...
> >>
> >> If you are sure that your test will work when you enter 15 as a test
> >> value - try different numbers to confirm that test works - If it does,
> >> then I think you've not provided the entire code here for me (perhaps
> >> anyone else) to give a full and proper answer/suggestion.
> >>
> >> Does any of the above help?
> >> randelld[/color]
> >
> >[/color]
>[/color]

**Reply Via Newsgroup** · Jul 23 '05, 10:18 AM

Re: calling variable in onchange function

R.G. Vervoort wrote:[color=blue]
> ok
>
> I can see that it is a problem (for me)
>
> but....
>
> I can call a php function (with the ". ...... .") in the onchange (wich is
> javascript as i believe), is it not possible to call the javascript into a
> php function or to decalare a variable and the call it in the function
> (since it is possible to put a variable in the function wich works).
>
> thanks anyway
>
> Roy
>[/color]

LET US GET THIS STRAIGHT (and I'm sorry I'm shouting here) BUT YOU
CANNOT UNDER NO CIRCUMSTANCES CALL PHP CODE USING AN ONCHANGE EVENT
USING THE CODE YOU HAVE IN YOUR ORIGINAL POST (I've copied a line of the
offending code below).

<select id=naam_keuze size=1 name=keuze style=visibilit y:hidden
onchange=".Plac e_Selected('naa m_keuze.value') .";document.for m.voornaam.valu e
=naam_keuze.val ue;>
<option value=0>Kies
$options
</select>

The code contained in the onChange event is expected to be javascript -
NOT PHP.

I'll say that again...

The code contained in the onChange event is expected to be javascript -
NOT PHP.

Your web browser does not process PHP - It can use form methods GET and
POST to communicate with a server, true, but the methods you have used
above WILL NOT WORK.

I'm not saying MIGHT - I'm not saying MAYBE - I'm not saying its a grey
area... I AM DEFINITE, I HAVE NO DOUBT.... PHP is server side - an
onChange event only has access to client side actions. The only link
between the two is a POST or a GET method and from the code I see in
your original post, I don't see this occuring.

Unless you make your code available, either here in a post or via a url,
folk are unlikely to be able to help you. You are wasteing your time.

You mention that some numeric input works for you and I say that is
rubbish... thrash... garbage. If you are adamant that it does work then
you are either mistaken, have a bug in your code and getting the result
from something other than PHP or you have not provided enough of source
code for anyone here to help to show how the data is being sent from
your client, to the server, and back, to give you this result you claim.

I honestly don't mean to offend, but while you persisted in making a
false claim and I needed to clear it up... I'll honestly do my best to
help though...

regards
randelld

calling variable in onchange function

calling variable in onchange function

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