asked on

how to submit variable to a php page?

hi all ,
i am trying to fetch the data from a php page and
do the backend process in jsp page and then submit the result to php page. i am using URLConnection .

code in login.php

<form action="http://abc.com/process.jsp" method="post">
<input name="un" type="text">
<input name="pass" type="password">
<input type="submit" value="Submit">
</form>

code in process.jsp

String un=null;
String pass=null;
un=request.getParameter("un");
out.print("un="+un);
pass=request.getParameter("pass");
out.print("pass="+pass);
boolean result=false;
if ("un1".equals(un) && "un1".equals(pass))
{
result =true;
}
else
{
result=false;
}

String myurl="http://xyz.com/xyz/result.php?result="+result;
out.print("myurl="+myurl);
URL u = new URL(myurl);
URLConnection yc= u.openConnection();
BufferedReader html = new BufferedReader(new InputStreamReader(u.openStream()));
html.close();

} catch (Exception e) {

out.print("There is a connectionproblem: " +e.getMessage());

}

code in result.php

<?php
echo "<br>";
echo "result=";
echo $_REQUEST['result'];
echo "<br>";
?>

my problem is i am unable to print the result fetch from jsp.i think there is some problem in submitting the variable to a php page? am i in the right way? or guide me where i am wrong?

waiting for expert solution.?

jarasa

What are you expecting to get on the php a boolean, a textString or a number?

Javier

saleemkhan

ASKER

hi jarasa,
i am trying to print the value in result.php.its a boolean value.

Mick Barry

you don't read the results from the php:

BufferedReader html = new BufferedReader(new InputStreamReader(u.openStream()));
String line = null;
while (null!=(line=html.readLine()))
{
out.println(line);
}
html.close();

saleemkhan

ASKER

hi objects,
>> you don't read the results from the php:

>> BufferedReader html = new BufferedReader(new InputStreamReader(u.openStream()));
>> String line = null;
>> while (null!=(line=html.readLine()))
>>{
>> out.println(line);
>> }
>.html.close();

what the above code will do?have u got me problem?my problem is i cant able to print the result in result.php.(i cant see the result value in result.php its blank).

waiting for expert solution

Mick Barry

> what the above code will do?

It reads the results from the php page and returns it to browser.

saleemkhan

ASKER

hi objects,
i dont want to read results from a php page.i want to throw the result from my jsp page to php.
And in php page i want to display(print) the result.

Am i in right direction?

Mick Barry

> Am i in right direction?

Doesn't sound like it, at the moment your jsp page is calling your php page.

saleemkhan

ASKER

hi objects,
Let me explain you what i am trying to do.

1)A php page(login.php) username and password will submit to my jsp file.
code :
<form action="http://abc.com/process.jsp" method="post">
<input name="un" type="text">
<input name="pass" type="password">
<input type="submit" value="Submit">
</form>
2)My jsp page fetch username and password and do process and then submit the result to result.php
code :
code in process.jsp

String un=null;
String pass=null;
un=request.getParameter("un");
out.print("un="+un);
pass=request.getParameter("pass");
out.print("pass="+pass);
boolean result=false;
if ("un1".equals(un) && "un1".equals(pass))
{
result =true;
}
else
{
result=false;
}

String myurl="http://xyz.com/xyz/result.php?result="+result;
out.print("myurl="+myurl);
URL u = new URL(myurl);
URLConnection yc= u.openConnection();
BufferedReader html = new BufferedReader(new InputStreamReader(u.openStream()));
html.close();

} catch (Exception e) {

out.print("There is a connectionproblem: " +e.getMessage());

}

as per your comment i understand that i am calling a php page.

I think i have to use outputstream or anyother method to submit the result to result.php.

am i right?
if not correct me.

and in result.php i just want to print the value

code in result.php

<?php
echo "<br>";
echo "result=";
echo $_REQUEST['result'];
echo "<br>";
?>

am i right?
if not correct me.

jarasa

Try this to make a test:
<%
String un=null;
String pass=null;
un=request.getParameter("un");
out.print("un="+un);
pass=request.getParameter("pass");
out.print("pass="+pass);
boolean result=false;
if ("un1".equals(un) && "un1".equals(pass))
{
result =true;
}
else
{
result=false;
}
%>

<html>
<head>
</head>
<Body onLoad="top.location.href='http://xyz.com/xyz/result.php?result='<%=result%>;">
</Body>
</html>

<%
} catch (Exception e) {

out.print("There is a connectionproblem: " +e.getMessage());

}
%>

Javier

saleemkhan

ASKER

hi javier,
i tried your comment. it just prints username and password
process.jsp and thats all.

where i am wrong.

jarasa

What happens if you put on your browser directly the URL http://xyz.com/xyz/result.php?result=true?

Javier

jarasa

Sorry you said a boolean
http://xyz.com/xyz/result.php?result=0
Javier

saleemkhan

ASKER

if i put the url directly i will print

result=0

jarasa

And this?

String un=null;
String pass=null;
un=request.getParameter("un");
out.print("un="+un);
pass=request.getParameter("pass");
out.print("pass="+pass);
boolean result=false;
if ("un1".equals(un) && "un1".equals(pass))
{
result =true;
}
else
{
result=false;
}

String myurl="http://xyz.com/xyz/result.php?result="+result.toString();
out.print("myurl="+myurl);
URL u = new URL(myurl);
URLConnection yc= u.openConnection();
BufferedReader html = new BufferedReader(new InputStreamReader(u.openStream()));
html.close();

} catch (Exception e) {

out.print("There is a connectionproblem: " +e.getMessage());

}

saleemkhan

ASKER

compile error cannot invoke toString on a primitive type boolean
at line
String myurl="http://xyz.com/xyz/result.php?result="+result.toString();

jarasa

I can't understand that:

toString() -> Returns a String object representing this Boolean's value.

Opps I see:

Change this:

boolean result=false;

For this

Boolean result=false;

And try again please

Javier

saleemkhan

ASKER

i tried your comment,
i am getting error typemismatch error cannot from boolean to java.lang.Boolean.

jarasa

Ok Lets do this and if it works we try to fix it.

Put this line on your original code:

String myurl="http://xyz.com/xyz/result.php?result=0";

Sorry for the errors but I don't have time to make the validations here.

Javier

saleemkhan

ASKER

i tried your comment,

but no success.

explanation:-
Whats happens here is when i submit username and password from login.php it goes to process.jsp
its prints like this
un=un1pass=un1
myurl=http://xyz.com.com/xyz/result.php?result=0

why it wont redirect to result.php and display the result there.

SOLUTION

jarasa

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kennethxu

use _GET instead of _REQUEST in your php!
HTH

jarasa

>use _GET instead of _REQUEST in your php!

Can't be that Silly :c))

I have to say that know nothing about PHP tho.

If he is getting the out.print() does not mean that the redirection is not working??

Javier

jarasa

>Can't be that Silly :c))

I mean the solution not you!!!

:c)

Javier

ASKER CERTIFIED SOLUTION

kennethxu

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jarasa

I always have this problem is like the AND && and OR || always mismatch them.
true is 0 and false is 1 or viceversa??

Javier

kennethxu

hmm. I think for shell, 0 is success, otherwise fail. any other language I came across is true-1, false-0. but I could be wrong, I'm silly :-)

jarasa

Well I'm serious Kenneth I alway mismatch that. I say that becose of my previous post:

Should be this way:
String myurl="http://xyz.com/xyz/result.php?result="+(result?"0":"1");
or this way:
String myurl="http://xyz.com/xyz/result.php?result="+(result?"1":"0");

Javier

kennethxu

1 is true
http://php.oregonstate.edu/manual/en/language.types.boolean.php

kennethxu

saleemkhan, Javier's solution is very close to the answer. He should get points not me. (I don't thin i'll get but just in case :-)

jarasa

Kenneth, I'm not here for the points, and besides I made too many obvious mistakes in this question, I guess he should split them.

I've learned too today :c)

Javier

saleemkhan

ASKER

hi,
i split the points.i dont have idea who got 125 and who got 50-:)
i am sorry if i make a mistake in spliting points -:)

jarasa

Is OK :c)
Thanks
Javier

saleemkhan

ASKER

your welcome -:)

any contact email -:)