Hello,
I'm new to PHP but have created the basic code to submit via GET or POST data to a website which can also print the returned data to the webbrowser. The problem is the webbrowser doesn't know it should now be pointing to the remote site and graphic links/css/etc aren't accessible so the page returned (printed) doesn't look good. What do I need to do to make it actually work like a normal form/button so that the browser knows to use the new host location? I have a FreeBSD server with PHP 4.4 and curl is not available.
Here's the code I came up with from various sources to try and add items to a paypal cart (however it doesn't seem to work with paypal, but when trying other sites/tests, it works execpt for the answer i've asked here):
<?php
if (!function_exists('http_build_query')) {
function http_build_query($data, $prefix='', $sep='', $key='') {
$ret = array();
foreach ((array)$data as $k => $v) {
if (is_int($k) && $prefix != null) $k = urlencode($prefix . $k);
if (!empty($key)) $k = $key.'['.urlencode($k).']';
if (is_array($v) || is_object($v))
array_push($ret, http_build_query($v, '', $sep, $k));
else array_push($ret, $k.'='.urlencode($v));
}
if (empty($sep)) $sep = ini_get('arg_separator.output');
return implode($sep, $ret);
}}
//-------------------------------------------------------------------
// Funciton used to decode the header used for processing body
//
function decode_header ( $str )
{
// split using optional leading CR
$part = preg_split ( "/\r?\n/", $str, -1, PREG_SPLIT_NO_EMPTY );
$out = array ();
for ( $h = 0; $h < sizeof ( $part ); $h++ ) {
if ( $h != 0 ) {
// find key vs value location
$pos = strpos ( $part[$h], ':' );
// get key name and remove any spaces
$k = strtolower ( str_replace ( ' ', '', substr ( $part[$h], 0, $pos ) ) );
// get value part of data
$v = trim ( substr ( $part[$h], ( $pos + 1 ) ) );
}
else {
// setup a special status key for the status
$k = 'status';
$v = explode ( ' ', $part[$h] );
$v = $v[1];
}
// check if this key is to set a cookie
if ( $k == 'set-cookie' ) {
// set a cookie key
$out['cookies'][] = $v;
}
else if ( $k == 'content-type' ) {
// determine the content type of decoding by not including the ;
if ( ( $cs = strpos ( $v, ';' ) ) !== false ) {
$out[$k] = substr ( $v, 0, $cs );
}
else {
$out[$k] = $v;
}
}
else {
// save value for key
$out[$k] = $v;
}
}
// return assoicated arrary of header items
return $out;
}
//-------------------------------------------------------------------
// Funciton used to decode the body based on the encoding
//
// $info is the header information obtained via decode_header
//
function decode_body ( $info, $str, $eol = "\r\n" )
{
$tmp = $str;
$add = strlen ( $eol );
$str = '';
if ( isset ( $info['transfer-encoding'] ) && $info['transfer-encoding'] == 'chunked' ) {
// handle removing the chunked heading data
do {
$tmp = ltrim ( $tmp );
$pos = strpos ( $tmp, $eol );
$len = hexdec ( substr ( $tmp, 0, $pos ) );
if ( isset ( $info['content-encoding'] ) )
{
$str .= gzinflate ( substr ( $tmp, ( $pos + $add + 10 ), $len ) );
}
else
{
$str .= substr ( $tmp, ( $pos + $add ), $len );
}
$tmp = substr ( $tmp, ( $len + $pos + $add ) );
$check = trim ( $tmp );
} while ( ! empty ( $check ) );
} else if ( isset ( $info['content-encoding'] ) ) {
// decode the data
$str = gzinflate ( substr ( $tmp, 10 ) );
}
else {
// just use orginal string
$str = $tmp;
}
return $str;
}
//-------------------------------------------------------------------
// Funciton used to split the data obtained from remote server to
// its header and body sections.
//
function parsePage(&$page, &$hdr, &$body)
{
$tmp = explode("\r\n\r\n", $page, 2);
$hdr = $tmp[0];
$body = $tmp[1];
}
//-------------------------------------------------------------------
/* sendToHost - send data to remote host
* ~~~~~~~~~~ * Params:
* $host - Just the hostname. No http:// or
/path/to/file.html portions
* $port - port to use (typically 80 or 443)
* $method - get or post, case-insensitive
* $path - The /path/to/file.html part
* $data - The query string, without initial question mark
* $useragent - If true, 'MSIE' will be sent as
the User-Agent (optional)
*
* Examples:
* sendToHost('www.google.com',,'get','/search','q=php_imlib');
* sendToHost('www.example.com',,'post','/some_script.cgi',
* 'param=First+Param&second=Second+param');
*/
function sendToHost($host,$port=80,$method,$path,$data,$useragent=0)
{
// Supply a default method of GET if the one passed was empty
if (empty($method)) {
$method = 'GET';
}
// convert method to upper case
$method = strtoupper($method);
// open port
if ($port==443) {
$fp = fsockopen("ssl://".$host, $port);
}
else {
$fp = fsockopen($host, $port);
}
// setup path to include variables for GET method
if ($method == 'GET') {
$path .= '?' . $data;
}
// send the http header information
fputs($fp, "$method $path HTTP/1.1\r\n");
fputs($fp, "Host: $host\r\n");
fputs($fp,"Content-type: application/x-www-form-urlencoded\r\n");
if ($method=='POST') {
fputs($fp, "Content-length: " . strlen($data) . "\r\n");
}
if ($useragent) {
fputs($fp, "User-Agent: MSIE\r\n");
}
fputs($fp, "Connection: close\r\n\r\n");
// send the post variables
if ($method == 'POST') {
fputs($fp, $data);
}
// get response from server
while (!feof($fp)) {
$buf .= fgets($fp,128);
}
// close connection
fclose($fp);
// separate header from body
parsePage($buf, $hdr, $body);
// setup array with decoded header/body
$arr['hdrraw']=$hdr;
$arr['hdrarr']=decode_header($hdr);
$arr['body']=decode_body($arr['hdrarr'], $body);
// return header and body in array
return $arr;
}
//-------------------------------------------------------------------
// main processing
//
$host='www.paypal.com';
$path='/cgi-bin/webscr';
$product=array('cmd'=>'_cart',
'upload'=>'1',
'business'=>'yourpaypalemail@yourcompany.com',
'currency_code'=>'USD',
'image'=>'https://www.paypal.com/en_US/i/btn/btn_cart_LG.gif',
'item_name_1'=>'Test Product',
'item_number_1'=>'testprod',
'amount_1'=>'12.95',
'quantity_1'=>'2');
$pagedata=sendToHost($host, 80, 'post', $path, http_build_query($product), $useragent=0);
header($pagedata['hdrraw']);
print($pagedata['body']);
//header("Location: https://".$host.$path)
?>
MOD EDIT: [PHP][/PHP] bbcode tags added due to large amount of code - please use these tags in the future when posting PHP code!
