Glancing at the code, the function http() says: if($method == POST) - note
that POST is not a string, as you are passing it into the function as. I'm
guessing it's a predefined variable in the class elsewhere.

Moreover, the posted code says:
# http()
# A common routine called by all of the previously described
# functions. You should always use one of the other wrappers for this
# routine and not call it directly.
You might want to consider just calling the other function, http_post_form,
as it would probably be somewhat simpler.

-Stephen

2009/1/11 <webmaster_at_simplymachine.com>

> I've searched the list but I don't see any similar problem. I'm using
> simple code from a book to send POST data with curl and it's coming through
> as GET instead, and with no variables appearing. I've tried this on two
> different servers. Is there some type of restrictive setting blocking this?
> The code is as follows:
>
>
> <?php
> include("LIB_http.php");
>
> $action = "http://www.schrenk.com/nostarch/webbots/form_analyzer.php";
> $method = "POST";
> $ref="";
> $data_array['term']="hello";
> $response=http($target=$action, $ref, $method, $data_array, EXCL_HEAD);
> print_r($response);
> ?>
>
>
> and this is lib_http.php:
>
>
> <?php
> /*
> ########################################################################
>
> Copyright 2007, Michael
> Schrenk
>
> This software is designed for use with the
> book,
> "Webbots, Spiders, and Screen Scarpers", Michael Schrenk, 2007 No Starch
> Press, San Francisco CA
>
>
> W3C(R) SOFTWARE NOTICE AND
> LICENSE
>
>
>
> This work (and included software, documentation such as READMEs, or
> other
> related items) is being provided by the copyright holders under the
> following license.
> By obtaining, using and/or copying this work, you (the licensee) agree
> that you have read,
> understood, and will comply with the following terms and
> conditions.
>
>
> Permission to copy, modify, and distribute this software and its
> documentation, with or
> without modification, for any purpose and without fee or royalty is hereby
> granted, provided
> that you include the following on ALL copies of the software and
> documentation or portions thereof,
> including
> modifications:
>
> 1. The full text of this NOTICE in a location viewable to users of the
> redistributed
> or derivative
> work.
>
> 2. Any pre-existing intellectual property disclaimers, notices, or terms
> and conditions.
> If none exist, the W3C Software Short Notice should be included
> (hypertext is preferred,
> text is permitted) within the body of any redistributed or derivative
> code.
> 3. Notice of any changes or modifications to the files, including the
> date changes were made.
> (We recommend you provide URIs to the location from which the code is
> derived.)
>
>
> THIS SOFTWARE AND DOCUMENTATION IS PROVIDED "AS IS," AND COPYRIGHT HOLDERS
> MAKE NO REPRESENTATIONS OR
> WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO, WARRANTIES OF
> MERCHANTABILITY OR FITNESS
> FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE OR DOCUMENTATION
> WILL NOT INFRINGE ANY THIRD
> PARTY PATENTS, COPYRIGHTS, TRADEMARKS OR OTHER
> RIGHTS.
>
>
> COPYRIGHT HOLDERS WILL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL OR
> CONSEQUENTIAL DAMAGES ARISING OUT
> OF ANY USE OF THE SOFTWARE OR
> DOCUMENTATION.
>
>
>
> The name and trademarks of copyright holders may NOT be used in advertising
> or publicity pertaining to the
> software without specific, written prior permission. Title to copyright in
> this software and any associated
> documentation will at all times remain with copyright
> holders.
> ########################################################################
>
> */
>
> #-----------------------------------------------------------------------
> # LIB_http
> #
> # F U N C T I O N S
> #
> # http_get()
> # Fetches a file from the Internet with the HTTP protocol
> # http_header()
> # Same as http_get(), but only returns HTTP header instead of
> # the normal file contents
> # http_get_form()
> # Submits a form with the GET method
> # http_get_form_withheader()
> # Same as http_get_form(), but only returns HTTP header instead of
> # the normal file contents
> # http_post_form()
> # Submits a form with the POST method
> # http_post_withheader()
> # Same as http_post_form(), but only returns HTTP header instead of
> # the normal file contents
> # http_header()
> #
> # http()
> # A common routine called by all of the previously described
> # functions. You should always use one of the other wrappers for this
> # routine and not call it directly.
> #
> #-----------------------------------------------------------------------
> # R E T U R N E D D A T A
> # All of these routines return a three dimensional array defined as
> # follows:
> # $return_array['FILE'] = Contents of fetched file, will also
> # include the HTTP header if requested
> # $return_array['STATUS'] = CURL generated status of transfer
> # $return_array['ERROR'] = CURL generated error status
> ########################################################################
>
> /***********************************************************************
> Webbot defaults (scope = global)
> ----------------------------------------------------------------------*/
> # Define how your webbot will appear in server logs
> define("WEBBOT_NAME", "Test Webbot");
>
> # Length of time cURL will wait for a response (seconds)
> define("CURL_TIMEOUT", 25);
>
> # Location of your cookie file. (Must be fully resolved local address)
> define("COOKIE_FILE", "c:\cookie.txt");
>
> # DEFINE METHOD CONSTANTS
> define("HEAD", "HEAD");
> define("GET", "GET");
> define("POST", "POST");
>
> # DEFINE HEADER INCLUSION
> define("EXCL_HEAD", FALSE);
> define("INCL_HEAD", TRUE);
>
> /***********************************************************************
> User interfaces
> -------------------------------------------------------------
> */
>
> /***********************************************************************
> function http_get($target, $ref)
> -------------------------------------------------------------
> DESCRIPTION:
> Downloads an ASCII file without the http header
> INPUT:
> $target The target file (to download)
> $ref The server referer variable
> OUTPUT:
> $return_array['FILE'] = Contents of fetched file, will also
> include the HTTP header if requested
> $return_array['STATUS'] = CURL generated status of transfer
> $return_array['ERROR'] = CURL generated error status
> ***********************************************************************/
> function http_get($target, $ref)
> {
> return http($target, $ref, $method="GET", $data_array="", EXCL_HEAD);
> }
>
> /***********************************************************************
> http_get_withheader($target, $ref)
> -------------------------------------------------------------
> DESCRIPTION:
> Downloads an ASCII file with the http header
> INPUT:
> $target The target file (to download)
> $ref The server referer variable
> OUTPUT:
> $return_array['FILE'] = Contents of fetched file, will also
> include the HTTP header if requested
> $return_array['STATUS'] = CURL generated status of transfer
> $return_array['ERROR'] = CURL generated error status
> ***********************************************************************/
> function http_get_withheader($target, $ref)
> {
> return http($target, $ref, $method="GET", $data_array="", INCL_HEAD);
> }
>
> /***********************************************************************
> http_get_form($target, $ref, $data_array)
> -------------------------------------------------------------
> DESCRIPTION:
> Submits a form with the GET method and downloads the page
> (without a http header) referenced by the form's ACTION variable
> INPUT:
> $target The target file (to download)
> $ref The server referer variable
> $data_array An array that defines the form variables
> (See "Webbots, Spiders, and Screen Scrapers" for
> more information about $data_array)
> OUTPUT:
> $return_array['FILE'] = Contents of fetched file, will also
> include the HTTP header if requested
> $return_array['STATUS'] = CURL generated status of transfer
> $return_array['ERROR'] = CURL generated error status
> ***********************************************************************/
> function http_get_form($target, $ref, $data_array)
> {
> return http($target, $ref, $method="GET", $data_array, EXCL_HEAD);
> }
>
> /***********************************************************************
> http_get_form_withheader($target, $ref, $data_array)
> -------------------------------------------------------------
> DESCRIPTION:
> Submits a form with the GET method and downloads the page
> (with http header) referenced by the form's ACTION variable
> INPUT:
> $target The target file (to download)
> $ref The server referer variable
> $data_array An array that defines the form variables
> (See "Webbots, Spiders, and Screen Scrapers" for
> more information about $data_array)
> OUTPUT:
> $return_array['FILE'] = Contents of fetched file, will also
> include the HTTP header if requested
> $return_array['STATUS'] = CURL generated status of transfer
> $return_array['ERROR'] = CURL generated error status
> ***********************************************************************/
> function http_get_form_withheader($target, $ref, $data_array)
> {
> return http($target, $ref, $method="GET", $data_array, INCL_HEAD);
> }
>
> /***********************************************************************
> http_post_form($target, $ref, $data_array)
> -------------------------------------------------------------
> DESCRIPTION:
> Submits a form with the POST method and downloads the page
> (without http header) referenced by the form's ACTION variable
> INPUT:
> $target The target file (to download)
> $ref The server referer variable
> $data_array An array that defines the form variables
> (See "Webbots, Spiders, and Screen Scrapers" for
> more information about $data_array)
> OUTPUT:
> $return_array['FILE'] = Contents of fetched file, will also
> include the HTTP header if requested
> $return_array['STATUS'] = CURL generated status of transfer
> $return_array['ERROR'] = CURL generated error status
> ***********************************************************************/
> function http_post_form($target, $ref, $data_array)
> {
> return http($target, $ref, $method="POST", $data_array, EXCL_HEAD);
> }
>
> function http_post_withheader($target, $ref, $data_array)
> {
> return http($target, $ref, $method="POST", $data_array, INCL_HEAD);
> }
>
> function http_header($target, $ref)
> {
> return http($target, $ref, $method="HEAD", $data_array="", INCL_HEAD);
> }
>
> /***********************************************************************
> http($url, $ref, $method, $data_array, $incl_head)
> -------------------------------------------------------------
> DESCRIPTION:
> This function returns a web page (HTML only) for a web page through
> the execution of a simple HTTP GET request.
> All HTTP redirects are automatically followed.
>
> IT IS BEST TO USE ONE THE EARLIER DEFINED USER INTERFACES
> FOR THIS FUNCTION
>
> INPUTS:
> $target Address of the target web site
> $ref Address of the target web site's referrer
> $method Defines request HTTP method; HEAD, GET or POST
> $data_array A keyed array, containing query string
> $incl_head TRUE = include http header
> FALSE = don't include http header
>
> RETURNS:
> $return_array['FILE'] = Contents of fetched file, will also
> include the HTTP header if requested
> $return_array['STATUS'] = CURL generated status of transfer
> $return_array['ERROR'] = CURL generated error status
> ***********************************************************************/
> function http($target, $ref, $method, $data_array, $incl_head)
> {
> # Initialize PHP/CURL handle
> $ch = curl_init();
>
> # Prcess data, if presented
> if(is_array($data_array))
> {
> # Convert data array into a query string (ie
> animal=dog&sport=baseball)
> foreach ($data_array as $key => $value)
> {
> if(strlen(trim($value))>0)
> $temp_string[] = $key . "=" . urlencode($value);
> else
> $temp_string[] = $key;
> }
> $query_string = join('&', $temp_string);
> }
>
> # HEAD method configuration
> if($method == HEAD)
> {
> curl_setopt($ch, CURLOPT_HEADER, TRUE); // No http head
> curl_setopt($ch, CURLOPT_NOBODY, TRUE); // Return body
> }
> else
> {
> # GET method configuration
> if($method == GET)
> {
> if(isset($query_string))
> $target = $target . "?" . $query_string;
> curl_setopt ($ch, CURLOPT_HTTPGET, TRUE);
> curl_setopt ($ch, CURLOPT_POST, FALSE);
> }
> # POST method configuration
> if($method == POST)
> {
> if(isset($query_string))
> curl_setopt ($ch, CURLOPT_POSTFIELDS, $query_string);
> curl_setopt ($ch, CURLOPT_POST, TRUE);
> curl_setopt ($ch, CURLOPT_HTTPGET, FALSE);
> }
> curl_setopt($ch, CURLOPT_HEADER, $incl_head); // Include head as
> needed
> curl_setopt($ch, CURLOPT_NOBODY, FALSE); // Return body
> }
>
> curl_setopt($ch, CURLOPT_COOKIEJAR, COOKIE_FILE); // Cookie management.
> curl_setopt($ch, CURLOPT_COOKIEFILE, COOKIE_FILE);
> curl_setopt($ch, CURLOPT_TIMEOUT, CURL_TIMEOUT); // Timeout
> curl_setopt($ch, CURLOPT_USERAGENT, WEBBOT_NAME); // Webbot name
> curl_setopt($ch, CURLOPT_URL, $target); // Target site
> curl_setopt($ch, CURLOPT_REFERER, $ref); // Referer value
> curl_setopt($ch, CURLOPT_VERBOSE, FALSE); // Minimize logs
> curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // No certificate
> curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE); // Follow redirects
> curl_setopt($ch, CURLOPT_MAXREDIRS, 4); // Limit redirections
> to four
> curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); // Return in string
>
> # Create return array
> $return_array['FILE'] = curl_exec($ch);
> $return_array['STATUS'] = curl_getinfo($ch);
> $return_array['ERROR'] = curl_error($ch);
>
> # Close PHP/CURL handle
> curl_close($ch);
>
> # Return results
> return $return_array;
> }
> ?>
>
> _______________________________________________
> http://cool.haxx.se/cgi-bin/mailman/listinfo/curl-and-php
>
>

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Received on 2009-01-12