title: PHP - issue when access other variable
body: <p>I'm getting error when try to access other variable. In <code>search_server.php</code> i try get <code>$pilihdomain</code> variable which defined in <code>index.php</code>
  I try like this : </p>
  
  <pre><code> //index.php    
      &lt;head&gt;
              &lt;title&gt;Twitter Search&lt;/title&gt;
              &lt;link href="search_client.css" type="text/css" rel="stylesheet" /&gt;
              &lt;link href="tweet.css" type="text/css" rel="stylesheet" /&gt;
              &lt;script src="jquery.min.js"&gt;&lt;/script&gt;
              &lt;script src="search_client.js"&gt;&lt;/script&gt;
          &lt;/head&gt;
          &lt;body&gt;
              &lt;div id="search_box"&gt;
              &lt;h1&gt;Twitter Search&lt;/h1&gt;
              &lt;input name="search_terms" autofocus="autofocus"/&gt;      
          &lt;?php 
          $dbHost = "localhost";
          $dbUser = "root";
          $dbPass = "";
          $dbname = "skripsi";
          $db = mysql_connect($dbHost,$dbUser,$dbPass);
          mysql_select_db($dbname,$db);
          $sql = mysql_query("SELECT * FROM namaklasifier");
          while($row = mysql_fetch_array($sql)) {
              $clsfr = $row['username'];
              $sql = mysql_query("SELECT * FROM namaklasifier");
                  echo '&lt;select name="cmake" autofocus width="10"&gt;';
                  echo '&lt;option value="0"&gt;-Pilih Domain Klasifikasi-&lt;/option&gt;';
                  while($row = mysql_fetch_array($sql)) {
                      echo '&lt;option ' . ($clsfr==$row['username']) . ' value="'.$row['username'].'"&gt;'.$row['username'].'&lt;/option&gt;'; 
              }
              echo '&lt;/select&gt;';
          }
          ?&gt;
              &lt;?php
          global $pilihdomain;
          $pilihdomain=$_POST['cmake'];
              ?&gt;
              &lt;button id="search_button"&gt;Search&lt;/button&gt;
              &lt;/div&gt;  
  
              &lt;div id="search_results_loader"&gt;&lt;/div&gt;
              &lt;table border="1"&gt;
            &lt;tr&gt;
              &lt;th&gt;Positif&lt;/th&gt;
              &lt;th&gt;Negatif&lt;/th&gt;
            &lt;/tr&gt;
            &lt;tr&gt;
              &lt;td&gt;&lt;div id="search_results_pos"&gt;&lt;/div&gt;&lt;/td&gt;
              &lt;td&gt;&lt;div id="search_results_neg"&gt;&lt;/div&gt;&lt;/td&gt;
            &lt;/tr&gt;
          &lt;/table&gt;
          &lt;/body&gt;
  </code></pre>
  
  <p>//search_server.php</p>
  
  <pre><code>    &lt;?php 
      require 'index.php';
  global $pilihdomain;
      // The search terms are passed in the q parameter
      // search_server.php?q=[search terms]
      if (!empty($_GET['q'])) {
  
          // Remove any hack attempts from input data
          $search_terms = htmlspecialchars($_GET['q']).' -smartfrencare -siapkan -klaim';
  
          // Get the application OAuth tokens
          require 'app_tokens.php';
  
          require_once("uClassify.php");
  
          $uclassify = new uClassify();
          // Set these values here
          $uclassify-&gt;setReadApiKey('8DvvfxwKPdvjgRSrtsTSOawmQ0');
          $uclassify-&gt;setWriteApiKey('v4Us59yQFhf9Z0nGrQsrTtzBI5k');         
  
          // Create an OAuth connection
          require 'tmhOAuth.php';
  
          $connection = new tmhOAuth(array(
            'consumer_key'    =&gt; $consumer_key,
            'consumer_secret' =&gt; $consumer_secret,
            'user_token'      =&gt; $user_token,
            'user_secret'     =&gt; $user_secret
          ));
  
          // Request the most recent 100 matching tweets
          $http_code = $connection-&gt;request('GET',$connection-&gt;url('1.1/search/tweets'), 
                  array('q' =&gt; $search_terms,
                      'count' =&gt; 5,
                      'lang' =&gt; 'in',
                      'locale' =&gt; 'jakarta',
                      'type' =&gt; 'recent'));
  
          // Search was successful
          if ($http_code == 200) {
  
              // Extract the tweets from the API response
              $response = json_decode($connection-&gt;response['response'],true);
              $tweet_data = $response['statuses']; 
  
              // Load the template for tweet display
              $tweet_template= file_get_contents('tweet_template.html');
  
              // Load the library of tweet display functions
              require 'display_lib.php';  
  
              // Create a stream of formatted tweets as HTML
              $tweet_stream = '';
              foreach($tweet_data as $tweet) {
  
                  // Ignore any retweets
                  if (isset($tweet['retweeted_status'])) {
                      continue;
                  }
                  // Get a fresh copy of the tweet template
                  $tweet_html = $tweet_template;
  
              //  global $pilihdomain;
                  $resp = $uclassify-&gt;classify($tweet['text'],$pilihdomain, 'herlambangp');              
                  $value = print_r($resp,true) ;          
                  // Insert this tweet into the html
                  $tweet_html = str_replace('[screen_name]',$tweet['user']['screen_name'],$tweet_html);
                  $tweet_html = str_replace('[name]', $tweet['user']['name'],$tweet_html);        
                  $tweet_html = str_replace('[profile_image_url]',$tweet['user']['profile_image_url'],$tweet_html);
                  $tweet_html = str_replace('[tweet_id]', $tweet['id'],$tweet_html);
                  $tweet_html = str_replace('[tweet_text]',linkify($tweet['text']),$tweet_html);
                  $tweet_html = str_replace('[tweet_class]',$value,$tweet_html);
                  $tweet_html = str_replace('[created_at]',twitter_time($tweet['created_at']),$tweet_html);
                  $tweet_html = str_replace('[retweet_count]',$tweet['retweet_count'],$tweet_html);           
  
                  // Add the HTML for this tweet to the stream
                  $tweet_stream .= $tweet_html;
              }
  
              // Pass the tweets HTML back to the Ajax request
              print $tweet_stream;
  
          // Handle errors from API request
          } else {
              if ($http_code == 429) {
                  print 'Error: Twitter API rate limit reached';
              } else {
                  print 'Error: Twitter was not able to process that search';
              }
          }
  
      } else {
          //not implement anything
      }   
  
      ?&gt;
  </code></pre>
  
  <p>search_client.js</p>
  
  <pre><code>// jQuery script for search request with server
  jQuery(document).ready(function($) {
  
      // Run when Search button is clicked
      $('#search_button').click(function(){
  
          // Display a progress indicator
          $('#search_results_loader').html('&lt;img src="ajax_loader.gif"&gt; Searching Twitter...');
  
          // Get the value of the input field
          // Encode it for use in a URL
          var search_value = encodeURIComponent($('input[name=search_terms]').val());
  
          // Send the search terms to the server in an Ajax request
          // This URL is for illustration only
          // You MUST change it to your server
          $.ajax({
              url: 'http://localhost/kejar/code/search_server.php?q=' + search_value,
              success: function(data){
  
                  // Display the results
                  $('#search_results_loader').html('');
                  $('#search_results_pos').html(data);
                  $('#search_results_neg').html(data);
              }
          })
      })
  });
  </code></pre>
  
  <p>Can you explain where my false?.</p>
  
  <p>Any help will be appreciated. Thanks :)</p>