- function cache_close()
- {
- // Quit function when no pointer is set
- if (empty($this->cache_pointer)) return;
- if ($this->cache_pointer)
- {
- // Close file add destroy handler
- @fclose($this->cache_pointer);
-
- // Set rights
- if (FILE_READABLE($this->cache_inc)) @chmod($this->cache_inc, 0666);
-
- // Remove pointer
- unset($this->cache_pointer);
- }
- else
- {
- // Cannot create file
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
- }
- }
-
- function cache_load()
- {
- if (FILE_READABLE($this->cache_inc)) {
- // Prepare temporary array
- $data = array();
-
- // Load cache file
- $cache = implode("", file($this->cache_inc));
-
- // Execute cache file
- eval($cache);
- if (is_array($data)) {
- // Return cache
- return $data;
- } else {
- // Cache problem detected!
- $this->cache_destroy();
- }
- }
- else
- {
- // Cache file not found or not readable
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_CANNOT_LOAD_1.$this->cache_inc.CACHE_CANNOT_LOAD_2);
- }
- }
-
- function cache_destroy()
- {
- if (FILE_READABLE($this->cache_inc))
- {
- // Remove cache file from system
- @unlink($this->cache_inc);
- if (!FILE_READABLE($this->cache_inc))
- {
- // Close cache automatically (we don't need it anymore!)
- $this->cache_close();
- }
- else
- {
- // Not removed!
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_CANNOT_UNLINK_1.$this->cache_inc.CACHE_CANNOT_UNLINK_2);
- }
- }
- else
- {
- // Does not exist!
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_CANNOT_UNLINK_1.$this->cache_inc.CACHE_CANNOT_UNLINK_2);
- }
- }
-
- function cache_remove($search, $data, $array)
- {
- global $ARRAY;
- if ((FILE_READABLE($this->cache_inc)) && (is_writeable($this->cache_inc)))
- {
- // Load cache into dummy array
- $dummy = $this->cache_load();
-
- // Search for key in array
- $key = array_search($data, $dummy[$search]);
- if (!empty($key))
- {
- // Key (hopefully) found?
- foreach ($array as $a)
- {
- // So we can remove all elements as requested
- unset($dummy[$a][$key]);
- }
-
- // Flush array to cache file
- $fp = fopen($this->cache_inc, 'w');
- fwrite($fp, "\$ARRAY = \"".$ARRAY."\";\n");
- foreach ($dummy as $k => $v)
- {
- if (is_array($v))
- {
- // Multi line(s) found
- $LINE = "";
- foreach($v as $k2 => $v2)
- {
- // Put every array element in a row...
- $LINE .= "\$data['".$k."'][] = \"".$v2."\";\n";
- }
- }
- else
- {
- // Single line found
- $LINE = "\$data['".$k."'] = \"".$v."\";\n";
- }
-
- // Write line(s)
- fwrite($fp, $LINE);
- }
-
- // Close cache file
- fclose($fp);
- }
- }
- else
- {
- // Cannot write to cache!
- ADD_FATAL(__FILE__."(".__LINE__."): ".CACHE_PROBLEMS_DETECTED);
- }
- }
-
- function cache_replace($search, $replace, $search_key, $array)
- {
- global $ARRAY;
- if ((FILE_READABLE($this->cache_inc)) && (is_writeable($this->cache_inc)))
- {
- // Load cache into dummy array
- $dummy = $this->cache_load();
-
- // Check if $dummy is valid (prevents some errors)
- if ((is_array($dummy)) && (isset($dummy[$search])) && (is_array($dummy[$search])))
- {
- // Search for key in array
- $key_found = array_key_exists($search_key, $dummy[$search]);
- if ($key_found == true)
- {
- $key = $search_key;
- // Key (hopefully) found?
- foreach ($dummy as $a => $v)
- {
- // So we can update all entries
- if ($a == $search)
- {
- // Update now...
- $dummy[$a][$search_key] = $replace;
- }
- }