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Re: Nested PHP [message #184835 is a reply to message #184834] Tue, 11 February 2014 11:17 Go to previous messageGo to previous message
Tim Streater is currently offline  Tim Streater
Messages: 328
Registered: September 2010
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In article
<1lgwd91.6d77v31qehadcN%adrian(at)poppyrecords(dot)invalid(dot)invalid>, Adrian
Tuddenham <adrian(at)poppyrecords(dot)invalid(dot)invalid> wrote:

> Jerry Stuckle <jstucklex(at)attglobal(dot)net> wrote:

>> From what I can gather, he's generating a page which contains PHP code
>> from another PHP script, and sending the generated page to the browser -
>> expecting the generated PHP code to be executed (which, of course, it
>> isn't).
>
> That's right.
>
> I'll try to elaborate and show some of the code, which might answer many
> of the previous replies at the same time:
>
> A typical webpage in this site uses embedded php to operate the hit
> counter (PROCaddlog.php), pick up its headers (SCCSheaders.php) and pick
> up its navigation table (SCCSnavtable.php).

You should really put a doctype here:

<!DOCTYPE html>

> <HTML>

at the top of your html so that the browser doesn't operate in quirks
mode (q.v.).

> <HEAD>
> <TITLE>Picture Gallery</TITLE>
> <meta name="KEYWORDS" content="Coal Canal, Somersetshire Coal Canal,
> Somerset Coal Canal, locks, caissons, Kennet & Avon,Weldon, Robert
> Weldon, Caisoon Lock, Inclined plane, Combe Hay, Bath, Wellow, Weldon,
> William Smith, Tuckingmill Tramway, Dorset & Somerset Canal">
> </HEAD>
> <BODY BGCOLOR="#CCFFFF">
> <CENTER><!--NOEDIT--><?php
> include($_SERVER['DOCUMENT_ROOT'] . "/PHP/counters/PROCaddlog.php");
> addlog("Gallery");
> include("http://www.coalcanal.org/PHP/SCCSheaders.php");
> include("http://www.coalcanal.org/PHP/SCCSnavtable.php");
> ?><!--/NOEDIT-->
>
> <P><FONT COLOR="#996633"><B>GALLERY</B></FONT>
>
> <P>&nbsp;
>
> <P><A HREF="http://www.flickr.com/photos/114362147@N06/">Photostream
> on Flickr</A>
>
> <P><A HREF="gallery/gallery-old.htm">Old pictures of the canal</A>
>
> <P>&nbsp;
>
> <P>&nbsp;
>
> <P><TABLE BORDER=0 CELLSPACING=0 CELLPADDING=5 WIDTH="100%">
> <TR>
> <TD>
> <P><A HREF="index.htm">Return to home page</A>
> </TD>
> <TD>
> <CENTER><A HREF="alphabetical.htm"><IMG SRC="images/Find.gif"
> WIDTH=75 HEIGHT=26 BORDER=0 ALIGN=bottom></A></CENTER>
> </TD>
> <TD>
> <P ALIGN=right><A HREF="#TOP">Return to top of this page</A>
> </TD>
> </TR>
> </TABLE>
> </CENTER>
> </BODY>
> </HTML>
>
> ~~~~~~~~~~ End of Typical Webpage ~~~~~~~
>
> The resulting output can be seen at:
> <http://www.coalcanal.org/gallery.php>
>
> I am now trying to build some password-protected pages and downloads,
> where a link to a page or PDF file calls up a page delivery program
> which decodes an encryped file and generates the PDF or page source code
> on-the-fly. The PDF-delivery program works fine, but when I use the
> same code to deliver an HTML page, the php within the HTML appears as
> text and fails to run.
>
> ~~~~~~~~~~ PDF Delivery Program ~~~~~~~~~~
> <?php
>
> $cookie1 = $_COOKIE["uservalid"];
> stripslashes($cookie1);

This ...

> setcookie ("uservalid", $cookie1 , time() + 900);
> $cookie2 = strrev($cookie1);
> $filename = $_GET["url"];
> stripslashes($filename);

.... and this are surely no-ops as you don't assign the output of
stripslashes (q.v.) to anything.

> $text = "Empty string";
>
> #Cookie check removed for security
> #If ($cookie2~~~~~~~~~
> {
> ### Read file ###
>
> $filenamer = $filename . "r";
> $fh = fopen($filenamer, 'r') or ("Downloader can't open
> file $filenamer");
> $text = fread($fh, filesize($filenamer));
> fclose($fh);
>
>
> ### Decode file ###
>
> # Decoding section removed for security#
> }
>
> ### Send file or refer to Login page ###
>
> #Cookie check removed for security
> #If ($cookie2~~~~~~~~~
> {
> header('Content-Type: application/octet-stream');
> header('Content-Disposition: attachment;
> filename="'.basename($filename).'"');
> header('Content-Length: ' . filesize($filenamer));
> print $text;
> }
> else
> {
> print "
> <HTML>
> <HEAD>
> </HEAD>
> <BODY BGCOLOR='#FFFFFF'>
> <CENTER><BR><BR>
> <FORM ACTION=\"Login2.php\" METHOD=POST>
> <P>Please <INPUT TYPE=submit NAME=Submit VALUE=\"Log in\">if you
> want to download this file
> <P> <A
> HREF='http://www.coalcanal.org.uk/contactform1.php'>Contact the
> webmaster</A> if you continue to have difficulties</CENTER>
> </BODY>
> </HTML>
> ";
> }
>
> ?>
>
> ~~~~~~~~~~~~ End of PDF Delivery Program ~~~~~~~~~
>
> As suggested by one of the replies, I am currently using a modification
> of the above program to deliver webpages, whereby the 'include' is
> processed by the delivery program (not by the HTML page)

The include is *always* processed by PHP - see:

http://uk3.php.net/manual/en/function.include.php

> and the result delivered to the HTML page at the
> appropriate point in the generated source code.
>
> I wondered if there was a command which I could embed instead of the
> "print $text;", which would cause the resulting HTML to be processed
> like a normal webpage, so that the php within it would also run?

Well, include might do it, I suppose. On first reading of the include
ref I gave above, I assumed that include's argument had always to be a
specific file, but there seem to be some hints in the user examples
that imply you could do:

include $filenamer;

instead of

print $text;

but I've never tried this myself.

BTW I've read that google etc ignore <meta keywords...> these days but
that's another story.

--
"People don't buy Microsoft for quality, they buy it for compatibility
with what Bob in accounting bought last year. Trace it back - they buy
Microsoft because the IBM Selectric didn't suck much" - P Seebach, afc

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