eval ( in PHP ) evaluates any code you pass into it as a variable or
string....
I am now very confused into the question you are asking
----- Original Message -----
From: "Robaj" <robrass...@gmail.com>
To: "Prototype & script.aculo.us" <prototype-scriptaculous@googlegroups.com>
Sent: Thursday, June 25, 2009 2:07 PM
Subject: [Proto-Scripty] Re: php in files
Ok I got the gist of it, you can't do what I wanted to do, interact
with php through ajax after the page has loaded. Yes I know it can get
strings and data from the server side code, but only if that content
is html.
eval doesn't work with files loaded after the page is loaded.
and
file_get_contents() is realy no different to what I was doing with an
fread().
Ajax-php looks a great mix at first. But actually it isn't mixed at
all really.
When someone launches into your web site you can have any amount of
php preprocessing.
Then once loaded you enter a world where only ajax-javascript-html
exist, ok you can reload the page to update the page in the way it was
always done, but ajax plays no part in that. I can't help wondering
why no one has taken a next step.
On Jun 24, 11:15 am, Richard Quadling <rquadl...@googlemail.com>
wrote:
> 2009/6/24 Alex McAuley <webmas...@thecarmarketplace.com>:
>
>
>
>
>
> > I really think you are overthinking this!
>
> > If you want to echo out "<?php echo('FOO'); ?> for instance and have the
> > preprocessor parse it... you need to (dangerously) eval it ....
>
> > $variable="<?php echo('<p>foo</p>'); ?>";
>
> > eval($variable);
>
> > ....... "<p>foo</p>" is returned to the browser...
>
> > So (and i highly do not recommend this unless you truely trust the text
> > in
> > your database and the files it is opening) u must use php's eval();
>
> > Like so ... (using your variables)
>
> > eval($retstr);
>
> > then anything inside that variable or file will be evall'd as opcode and
> > passed through the pre-processor and you will be left with html or
> > whatever
> > your php code spits out!
>
> > HTH
>
> > Alex
>
> > ----- Original Message -----
> > From: "Robaj" <robrass...@gmail.com>
> > To: "Prototype & script.aculo.us"
> > <prototype-scriptaculous@googlegroups.com>
> > Sent: Wednesday, June 24, 2009 7:44 AM
> > Subject: [Proto-Scripty] Re: php in files
>
> > Ok, let me put my idea to you and see if there is a way without
> > reloading the whole page -
>
> > I use prototype.js and project.js. project.js is just my entensions
> > for each project, which I have narrowed down to two functions, -
>
> > function myRequest( text ) {
> > new Ajax.Request('requests.php',
> > {
> > method: 'post',
> > postBody: text,
> > onComplete: myResponse
> > });
>
> > }
> > function myResponse(req) {
> > $(targetdiv).innerHTML= req.responseText;
> > }
> > Where text is supplied from the controls, such as 'page=home'.
> > request.php is the only php file called directly, it decides which
> > response is wanted and returns the text for a control or entire body
> > for <div id='mainbody'></div>
>
> > All of my pages and controls within them are created in php from the
> > database. This is very easy to maintain and update, so a nice base for
> > all kinds of applications
>
> > All works well if I only respond with html including the ajax side
> > that recalls requests.php, the only problem is that I intended some of
> > the pages to be applications, so I want them to have php and can not
> > see a way to pass it through the preprocessor.
>
> > My request.php at the server side is like this -
>
> > $Home=$button=$update=$testButton=$menuItem="";
> > extract($_POST,EXTR_IF_EXISTS);
>
> > if($menuItem != "")
> > {
> > $retstr = "";
>
> > $dbconn = getdbconnection();
>
> > //find page associated with this menu item
> > $query = 'SELECT body FROM menu WHERE name=\''.$menuItem.'\'';
> > $result = pg_query($dbconn,$query) or die('Query failed: ' .
> > pg_last_error());
> > $row = pg_fetch_row($result);
> > //read in the file
> > if(file_exists($row[0]))
> > {
> > $handle = fopen($row[0],"r");
> > $retstr = fread($handle,filesize($row[0]));
> > fclose($handle);
> > //failed attempt to use include instead
> > //$retstr = "<?php include ".$row[0]."; ?>";
> > }
> > else
> > {
> > $retstr = "File not created yet";
> > }
> > pg_close($dbconn);
> > echo $retstr;
> > }
>
> > In the end this would leave me with only one main page index.php and
> > all other pages called up via ajax and created or loaded via php.
>
> > I have the feeling now that I have to update the whole page, not a
> > terrible tragedy, but I just have the feeling that I can somehow put
> > my fread() file through the php preprocessor.
>
> > On Jun 23, 3:09 pm, Richard Quadling <rquadl...@googlemail.com> wrote:
> >> 2009/6/23 Robaj <robrass...@gmail.com>:
>
> >> > I know this isn't strictly speaking a Prototype issue, but this is
> >> > the
> >> > only group I am in and a few topics do skirt around the edges of your
> >> > main topic.
>
> >> > If I have a file -
> >> > home.php
> >> > <?php
> >> > echo "<h1>A very interesting home page</h1>";
> >> > ?>
>
> >> > Then the file is returned to go into <div id="mainbody"></div> with a
> >> > plain fread() into a variable which is 'echo'd back to the client.
>
> >> > 'include'ing this file is fine, but then it passes through php at the
> >> > same time as everything else.
>
> >> > But any such file loaded as the action of an Ajax call is not fine.
> >> > It
> >> > doesn't get passed via php, or at least I don't think it does -
> >> > because in 'mainbody' I get part of it such as
>
> >> > Interesting"; ?>
>
> >> > Confusing because if it were being passed through php I would expect
> >> > 'Interesting'. but if it were not, then I would expect the whole file
> >> > in plain text.
>
> >> > I knew when I did this with fread I was probably heading for trouble,
> >> > but which is happening,
> >> > partial php parseing,
> >> > no php parseing or
> >> > ..... ?
>
> >> If you use fread(), you are reading a file. Any file. Nothing magic.
> >> No processing.
> >> If you use include()/require()/include_once()/require_once(), then PHP
> >> will process that file if it contains a valid opening tag (<?php).
>
> >> Uploading a file does NOT process the file. The file is only processed
> >> when it is requested.
>
> >> Can you provide any more information about what you are trying to do?
>
> >> Maybe using the PHP General list would also be a better place for this
> >> thread? (http://docs.php.net/mailing-lists.php)
>
> >> Regards,
>
> >> Richard.
>
> >> --
> >> -----
> >> Richard Quadling
> >> Zend Certified Engineer
> >> :http://zend.com/zce.php?c=ZEND002498&r=213474731
> >> "Standing on the shoulders of some very clever giants!"
>
> Rather than ...
>
> $handle = fopen($row[0],"r");
> $retstr = fread($handle,filesize($row[0]));
> fclose($handle);
> //failed attempt to use include instead
> //$retstr = "<?php include ".$row[0]."; ?>";
>
> Try ...
>
> $retstr = include $row[0];
>
> I don't know what $row[0] contains. Nor what the file $row[0]
> contains. That would be required for a better idea.
>
> Ideally you should follow a pattern (or a rule). Files with .php are
> included otherwise they are raw content and should be ...
>
> $retstr = file_get_contents($row[0]);
>
> sort of thing.
>
> --
> -----
> Richard Quadling
> Zend Certified Engineer :http://zend.com/zce.php?c=ZEND002498&r=213474731
> "Standing on the shoulders of some very clever giants!"
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