PHP - Quick Question About Php Vs Javascript For Making Live Changes To A Site Page

hello - dear phpfreaks, i portet over a wordpress site to localhost. (an opensuse linux-box)

all went nice and was very smooth to do so.

after porting over the files and the db;
i added the db-name and user-name etc. but nothing more.
then i looked at the site http://localhost/mysite

i saw the site - but only once -  that is very very interesting.

i read that i have to do more.  Probably these changes - mentioned below are mandantory in order to avoid a blank page

cf: https://managewp.com...#comment-148613
  The two fields you need to edit are “siteurl” (highlighted above) and “home” (which you may need to navigate to the second page to find). Just click the “Edit” buttons next to each field, and replace the URL contained in “option_value” with “http://localhost/yourfoldername/”.
That’s it! If you now navigate to “http://localhost/yourfoldername/”, your site should load up in all its glory. Please note that if you use custom permalinks, you will need to change them to default (in the WordPress > Settings > Permalinks screen) in order for internal links on your site to work. You can of course change the permalinks back to their custom form at any time.  
question: is this true? Do i need to make these changes to avoid a blank page!?
 

Hi
I have a quick question. I want my javascript to be able to access my php page because my php page has the coding to access the database and then it has to give me a list of the stuff in the database the alert box.
This is the code that I have. I know that I can use it but I'm not sure how to go about it.

getPHPResponse=function(){
   
   
   var url="/countries/ajax_return_response";


       $.post(url, {'format': 'JSON', 'countries': '$countries'}, function(data){
      //this is where jsvascript must do something

              alert(data);
   });
}

$link	=	?><a href="post?id=<?php echo $id; ?>&title=<?php echo $slug_title; ?>"><?php echo $title; ?></a><?php

Basically what I am trying to do is get a url link of a current page that I'll be sending in an email. I have all the $_GET variables I need to duplicate the current url.  For some reason it's giving me an error.    Can you please fix what is shown above into something that'll work?   Thanks.
Edited by man5, 15 July 2014 - 07:09 PM.

I have a CURL code that fetches some XML content from a remote server. I get the expected output on my localhost (XAMPP on windows). But from the live site(hosted on Linux), I get the CURL error:'couldn't connect to host'.

function DownloadUrl($Url, $p){
 
// is curl installed?
if (!function_exists('curl_init')){ 
die('CURL is not installed!');
}

       // create curl resource
        $ch = curl_init();

        // set url
        curl_setopt($ch, CURLOPT_URL, $Url);

   curl_setopt ($ch, CURLOPT_POSTFIELDS, $p);
   curl_setopt ($ch, CURLOPT_POST, 1);
        //return the transfer as a string
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

        // $output contains the output string
        $output = curl_exec($ch);
        
   if($output === false)
   echo 'Curl error: ' . curl_error($ch);
   else
     print $output;
        // close curl resource to free up system resources
        curl_close($ch);          
}

Hi Everyone   I am new in PHP and when i was trying to see live preview of my one of the PHP site then it was not showing properly. all the formats, color, images were not showing, i don't know whats the problem.