Submit a form & go to the new page after validate

[kelvin]

Hi,

A difficult question.

I have a form that I used to submit to https://www. paypal.com/cgi-bin/
webscr
<form action="https://www. paypal.com/cgi-bin/webscr" method="post">

Now I need to validate some inputs of this form, so I submit it to a
PHP page in my own server first.
<form action="paypal_upgrade_checking.php" method="post">

After validate, I need to submit the form again to https://www.
paypal.com/cgi-bin/webscr
I write a piece of PHP code but it failed. The browse is still in
paypal_upgrade_checking.php, it doesn't go to the new page.
I wonder whether there is a way to do it.
<?
....
$buf = '';

$req = '';

foreach ($_POST as $key =$value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}

$header="";
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('www.sandbox.paypal.com', 80, $errno, $errstr, 30);
if (!$fp) {
// HTTP ERROR
print "HTTP ERROR<br/>$errno<br/>$errstr";
exit();
} else {
fputs ($fp, $header . $req);
while(!feof($fp)) {
$buf.=fgets($fp,1024);
}
fclose($fp);
echo $buf;
}
?>

Thank you
Kelvin

[Jerry Stuckle]

kelvin wrote:

Hi,

A difficult question.

I have a form that I used to submit to https://www. paypal.com/cgi-bin/
webscr
<form action="https://www. paypal.com/cgi-bin/webscr" method="post">

Now I need to validate some inputs of this form, so I submit it to a
PHP page in my own server first.
<form action="paypal_upgrade_checking.php" method="post">

After validate, I need to submit the form again to https://www.
paypal.com/cgi-bin/webscr
I write a piece of PHP code but it failed. The browse is still in
paypal_upgrade_checking.php, it doesn't go to the new page.
I wonder whether there is a way to do it.
<?
...
$buf = '';

$req = '';

foreach ($_POST as $key =$value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}

$header="";
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('www.sandbox.paypal.com', 80, $errno, $errstr, 30);
if (!$fp) {
// HTTP ERROR
print "HTTP ERROR<br/>$errno<br/>$errstr";
exit();
} else {
fputs ($fp, $header . $req);
while(!feof($fp)) {
$buf.=fgets($fp,1024);
}
fclose($fp);
echo $buf;
}
?>

Thank you
Kelvin

Kelvin,

Do it the easy way - use CURL to do your posting.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================

[kelvin]

Thank you, but there is no curl on my web hosting server.
Is it possible to use something like javascript together if it is too
difficult to use PHP only?
Thank you,
Kelvin

[ED]

"kelvin" <ke*******@yahoo.com.cnwrote in message
news:11**********************@m37g2000prh.googlegr oups.com...

Hi,

A difficult question.

I have a form that I used to submit to https://www. paypal.com/cgi-bin/
webscr
<form action="https://www. paypal.com/cgi-bin/webscr" method="post">

Now I need to validate some inputs of this form, so I submit it to a
PHP page in my own server first.
<form action="paypal_upgrade_checking.php" method="post">

After validate, I need to submit the form again to https://www.
paypal.com/cgi-bin/webscr
I write a piece of PHP code but it failed. The browse is still in
paypal_upgrade_checking.php, it doesn't go to the new page.
I wonder whether there is a way to do it.
<?
...
$buf = '';

$req = '';

foreach ($_POST as $key =$value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}

$header="";
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('www.sandbox.paypal.com', 80, $errno, $errstr, 30);
if (!$fp) {
// HTTP ERROR
print "HTTP ERROR<br/>$errno<br/>$errstr";
exit();
} else {
fputs ($fp, $header . $req);
while(!feof($fp)) {
$buf.=fgets($fp,1024);
}
fclose($fp);
echo $buf;
}
?>

Thank you
Kelvin

Hi Kelvin,
Presuming that you want to redirect the browser a quick easy fix may be to
use GET instead of POST to submit to paypal (IIRC they support both
methods):
ie, using $req from your existing code:

$url = 'https://www.paypal.com/cgi-bin/webscr?'.$req
header("Location: $url");
exit;

cheers,
ED

[Captain Paralytic]

On 13 Jul, 03:44, kelvin <[e-mail]:

Hi,

A difficult question.

I have a form that I used to submit tohttps://www. paypal.com/cgi-bin/
webscr
<form action="https://www. paypal.com/cgi-bin/webscr" method="post">

Now I need to validate some inputs of this form, so I submit it to a
PHP page in my own server first.
<form action="paypal_upgrade_checking.php" method="post">

After validate, I need to submit the form again tohttps://www.
paypal.com/cgi-bin/webscr
I write a piece of PHP code but it failed. The browse is still in
paypal_upgrade_checking.php, it doesn't go to the new page.
I wonder whether there is a way to do it.

<?
...
$buf = '';

$req = '';

foreach ($_POST as $key =$value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}

$header="";
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('www.sandbox.paypal.com', 80, $errno, $errstr, 30);

if (!$fp) {
// HTTP ERROR
print "HTTP ERROR<br/>$errno<br/>$errstr";
exit();
} else {
fputs ($fp, $header . $req);
while(!feof($fp)) {
$buf.=fgets($fp,1024);
}
fclose($fp);
echo $buf;
}
?>

Thank you
Kelvin

This code will cause the sver to communicate with paypal, it won't
affect the browser.

You could send the form to the clinet and send an onload() script to
automatically submit it.

[Jerry Stuckle]

kelvin wrote:

Thank you, but there is no curl on my web hosting server.
Is it possible to use something like javascript together if it is too
difficult to use PHP only?
Thank you,
Kelvin

Don't know. Try a javascript newsgroup.

Or, if your hosting company won't install CURL, get another host.
They're are enough good ones around, and there's no reason to fight what
can be easily fixed.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================

[Jerry Stuckle]

Captain Paralytic wrote:

On 13 Jul, 03:44, kelvin <[e-mail]:

>Hi,

A difficult question.

I have a form that I used to submit tohttps://www. paypal.com/cgi-bin/
webscr
<form action="https://www. paypal.com/cgi-bin/webscr" method="post">

Now I need to validate some inputs of this form, so I submit it to a
PHP page in my own server first.
<form action="paypal_upgrade_checking.php" method="post">

After validate, I need to submit the form again tohttps://www.
paypal.com/cgi-bin/webscr
I write a piece of PHP code but it failed. The browse is still in
paypal_upgrade_checking.php, it doesn't go to the new page.
I wonder whether there is a way to do it.

<?
...
$buf = '';

$req = '';

foreach ($_POST as $key =$value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}

$header="";
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('www.sandbox.paypal.com', 80, $errno, $errstr, 30);

if (!$fp) {
// HTTP ERROR
print "HTTP ERROR<br/>$errno<br/>$errstr";
exit();
} else {
fputs ($fp, $header . $req);
while(!feof($fp)) {
$buf.=fgets($fp,1024);
}
fclose($fp);
echo $buf;
}
?>

Thank you
Kelvin

This code will cause the sver to communicate with paypal, it won't
affect the browser.

You could send the form to the clinet and send an onload() script to
automatically submit it.

The problem with that is he won't know if the transaction succeeded or not.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================

[Captain Paralytic]

On 13 Jul, 12:57, Jerry Stuckle <[e-mail]:

Captain Paralytic wrote:

On 13 Jul, 03:44, kelvin <[e-mail]:

Hi,

A difficult question.

I have a form that I used to submit tohttps://www. paypal.com/cgi-bin/
webscr
<form action="https://www. paypal.com/cgi-bin/webscr" method="post">

Now I need to validate some inputs of this form, so I submit it to a
PHP page in my own server first.
<form action="paypal_upgrade_checking.php" method="post">

After validate, I need to submit the form again tohttps://www.
paypal.com/cgi-bin/webscr
I write a piece of PHP code but it failed. The browse is still in
paypal_upgrade_checking.php, it doesn't go to the new page.
I wonder whether there is a way to do it.

<?
...
$buf = '';

$req = '';

foreach ($_POST as $key =$value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}

$header="";
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('www.sandbox.paypal.com', 80, $errno, $errstr, 30);

if (!$fp) {
// HTTP ERROR
print "HTTP ERROR<br/>$errno<br/>$errstr";
exit();
} else {
fputs ($fp, $header . $req);
while(!feof($fp)) {
$buf.=fgets($fp,1024);
}
fclose($fp);
echo $buf;
}
?>

Thank you
Kelvin

This code will cause the sver to communicate with paypal, it won't
affect the browser.

You could send the form to the clinet and send an onload() script to
automatically submit it.

The problem with that is he won't know if the transaction succeeded or not.

--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
[e-mail]
==================- Hide quoted text -

- Show quoted text -

But my reading of what he said is the he wants to validate data in the
form before posting it and redirecting the user to the paypal site.
Indeed he specifically says that the user stays on his page, rather
than being sent to the paypal page.

So the validation is to be done BEFORE sending the form (and the user)
to the paypal site.

I would tend to do the validation by javascript if possible, or if I
had to do it serverside I'd use AJAX methods.

[Jerry Stuckle]

Captain Paralytic wrote:

>
But my reading of what he said is the he wants to validate data in the
form before posting it and redirecting the user to the paypal site.
Indeed he specifically says that the user stays on his page, rather
than being sent to the paypal page.

So the validation is to be done BEFORE sending the form (and the user)
to the paypal site.

I would tend to do the validation by javascript if possible, or if I
had to do it serverside I'd use AJAX methods.

Either of which fail if JS is disabled, for instance.

I've got one site I took over from another webmaster which does this.
It's written in VBScript/ASP, so CURL isn't an option. The problem is
it requires additional work for the admin people to process the request
once payment has been completed. And this time can really add up.

Another PHP site I have which uses CURL is fully automated. No
additional work to process the payment required at all.
--
==================
Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
js*******@attglobal.net
==================

[kelvin]

On Jul 13, 4:10 am, "ED" <[e-mail]:

"kelvin" <[e-mail] in message

news:11**********************@m37g2000prh.googlegr oups.com...

Hi,

A difficult question.

I have a form that I used to submit tohttps://www. paypal.com/cgi-bin/
webscr
<form action="https://www. paypal.com/cgi-bin/webscr" method="post">

Now I need to validate some inputs of this form, so I submit it to a
PHP page in my own server first.
<form action="paypal_upgrade_checking.php" method="post">

After validate, I need to submit the form again tohttps://www.
paypal.com/cgi-bin/webscr
I write a piece of PHP code but it failed. The browse is still in
paypal_upgrade_checking.php, it doesn't go to the new page.
I wonder whether there is a way to do it.

<?
...
$buf = '';

$req = '';

foreach ($_POST as $key =$value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}

$header="";
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('www.sandbox.paypal.com', 80, $errno, $errstr, 30);

if (!$fp) {
// HTTP ERROR
print "HTTP ERROR<br/>$errno<br/>$errstr";
exit();
} else {
fputs ($fp, $header . $req);
while(!feof($fp)) {
$buf.=fgets($fp,1024);
}
fclose($fp);
echo $buf;
}
?>

Thank you
Kelvin

Hi Kelvin,
Presuming that you want to redirect the browser a quick easy fix may be to
use GET instead of POST to submit to paypal (IIRC they support both
methods):
ie, using $req from your existing code:

$url = 'https://www.paypal.com/cgi-bin/webscr?'.$req
header("Location: $url");
exit;

cheers,
ED

It works for me.

Thank you a lot,
Kelvin

[kelvin]

On Jul 13, 4:10 am, "ED" <[e-mail]:

"kelvin" <[e-mail] in message

news:11**********************@m37g2000prh.googlegr oups.com...

Hi,

A difficult question.

I have a form that I used to submit tohttps://www. paypal.com/cgi-bin/
webscr
<form action="https://www. paypal.com/cgi-bin/webscr" method="post">

Now I need to validate some inputs of this form, so I submit it to a
PHP page in my own server first.
<form action="paypal_upgrade_checking.php" method="post">

After validate, I need to submit the form again tohttps://www.
paypal.com/cgi-bin/webscr
I write a piece of PHP code but it failed. The browse is still in
paypal_upgrade_checking.php, it doesn't go to the new page.
I wonder whether there is a way to do it.

<?
...
$buf = '';

$req = '';

foreach ($_POST as $key =$value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}

$header="";
$header .= "POST /cgi-bin/webscr HTTP/1.0\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($req) . "\r\n\r\n";
$fp = fsockopen ('www.sandbox.paypal.com', 80, $errno, $errstr, 30);

if (!$fp) {
// HTTP ERROR
print "HTTP ERROR<br/>$errno<br/>$errstr";
exit();
} else {
fputs ($fp, $header . $req);
while(!feof($fp)) {
$buf.=fgets($fp,1024);
}
fclose($fp);
echo $buf;
}
?>

Thank you
Kelvin

Hi Kelvin,
Presuming that you want to redirect the browser a quick easy fix may be to
use GET instead of POST to submit to paypal (IIRC they support both
methods):
ie, using $req from your existing code:

$url = 'https://www.paypal.com/cgi-bin/webscr?'.$req
header("Location: $url");
exit;

cheers,
ED

It works for me too.

Thank you a lot,
Kelvin