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   1  <?php
   2  /**
   3  * Class for creating an RSS-feed
   4  * @author Michael Wimmer <flaimo@gmail.com>
   5  * @category flaimo-php
   6  * @copyright Copyright © 2002-2008, Michael Wimmer
   7  * @license GNU General Public License v3
   8  * @link http://code.google.com/p/flaimo-php/
   9  * @package RSS
  10  * @version 2.2.1
  11  */
  12  abstract class RSSBase {
  13  
  14      protected $allowed_datatypes = array('string', 'int', 'boolean',
  15                                     'object', 'float', 'array'
  16                                    );
  17  
  18  	function __construct() {
  19      } // end constructor
  20  
  21  	protected function setVar($data = FALSE, $var_name = '', $type = 'string') {
  22          if (!in_array($type, $this->allowed_datatypes) ||
  23              $type != 'boolean' && ($data === FALSE ||
  24              $this->isFilledString($var_name) === FALSE)) {
  25              return (boolean) FALSE;
  26          } // end if
  27  
  28          switch ($type) {
  29              case 'string':
  30                  if ($this->isFilledString($data) === TRUE) {
  31                      $this->$var_name = (string) trim($data);
  32                      return (boolean) TRUE;
  33                  } // end if
  34              case 'int':
  35                  if (is_numeric($data)) {
  36                      $this->$var_name = (int) $data;
  37                      return (boolean) TRUE;
  38                  } // end if
  39              case 'boolean':
  40                  if (is_bool($data)) {
  41                      $this->$var_name = (boolean) $data;
  42                      return (boolean) TRUE;
  43                  }  // end if
  44              case 'object':
  45                  if (is_object($data)) {
  46                      $this->$var_name =& $data;
  47                      return (boolean) TRUE;
  48                  } // end if
  49              case 'array':
  50                  if (is_array($data)) {
  51                      $this->$var_name = (array) $data;
  52                      return (boolean) TRUE;
  53                  } // end if
  54          } // end switch
  55          return (boolean) FALSE;
  56      } // end function
  57  
  58  	protected function getVar($var_name = 'dummy') {
  59          return (isset($this->$var_name)) ? $this->$var_name: FALSE;
  60      } // end function
  61  
  62  	public static function isFilledString($string = '', $min_length = 0) {
  63          if ($min_length == 0) {
  64              return (boolean) (!ctype_space($string)) ? TRUE : FALSE;
  65          } // end if
  66  
  67          return (boolean) (strlen(trim($var)) > $min_length) ? TRUE : FALSE;
  68      } // end function
  69  
  70  } // end class
  71  ?>