Posted by ED on 07/13/07 08:10

"kelvin" <kelvin_gl@yahoo.com.cn> wrote in message
news:1184294668.080879.180150@m37g2000prh.googlegroups.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

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