'; var $msgAfter = "
\n"; /** * Constructor * @author Mike Everhart */ public function __construct() { // Generate a unique ID for this user and session $this->msgId = md5(uniqid()); // Create the session array if it doesnt already exist if( !array_key_exists('flash_messages', $_SESSION) ) $_SESSION['flash_messages'] = array(); } /** * Add a message to the queue * * @author Mike Everhart * * @param string $type The type of message to add * @param string $message The message * @param string $redirect_to (optional) If set, the user will be redirected to this URL * @return bool * */ public function add($type, $message, $redirect_to=null) { if( !isset($_SESSION['flash_messages']) ) return false; if( !isset($type) || !isset($message[0]) ) return false; // Replace any shorthand codes with their full version if( strlen(trim($type)) == 1 ) { $type = str_replace( array('h', 'i', 'w', 'e', 's'), array('help', 'info', 'warning', 'error', 'success'), $type ); // Backwards compatibility... } elseif( $type == 'information' ) { $type = 'info'; } // Make sure it's a valid message type if( !in_array($type, $this->msgTypes) ) die('"' . strip_tags($type) . '" is not a valid message type!' ); // If the session array doesn't exist, create it if( !array_key_exists( $type, $_SESSION['flash_messages'] ) ) $_SESSION['flash_messages'][$type] = array(); $_SESSION['flash_messages'][$type][] = $message; if( !is_null($redirect_to) ) { header("Location: $redirect_to"); exit(); } return true; } //----------------------------------------------------------------------------------------------- // display() // print queued messages to the screen //----------------------------------------------------------------------------------------------- /** * Display the queued messages * * @author Mike Everhart * * @param string $type Which messages to display * @param bool $print True = print the messages on the screen * @return mixed * */ public function display($type='all', $print=true) { $messages = ''; $data = ''; if( !isset($_SESSION['flash_messages']) ) return false; if( $type == 'g' || $type == 'growl' ) { $this->displayGrowlMessages(); return true; } // Print a certain type of message? if( in_array($type, $this->msgTypes) ) { foreach( $_SESSION['flash_messages'][$type] as $msg ) { $messages .= $this->msgBefore . $msg . $this->msgAfter; } $data .= sprintf($this->msgWrapper, $this->msgClass, $type, $messages); // Clear the viewed messages $this->clear($type); // Print ALL queued messages } elseif( $type == 'all' ) { foreach( $_SESSION['flash_messages'] as $type => $msgArray ) { $messages = ''; foreach( $msgArray as $msg ) { $messages .= $this->msgBefore . $msg . $this->msgAfter; } $data .= sprintf($this->msgWrapper, $this->msgClass, $type, $messages); } // Clear ALL of the messages $this->clear(); // Invalid Message Type? } else { return false; } // Print everything to the screen or return the data if( $print ) { echo $data; } else { return $data; } } /** * Check to see if there are any queued error messages * * @author Mike Everhart * * @return bool true = There ARE error messages * false = There are NOT any error messages * */ public function hasErrors() { return empty($_SESSION['flash_messages']['error']) ? false : true; } /** * Check to see if there are any ($type) messages queued * * @author Mike Everhart * * @param string $type The type of messages to check for * @return bool * */ public function hasMessages($type=null) { if( !is_null($type) ) { if( !empty($_SESSION['flash_messages'][$type]) ) return $_SESSION['flash_messages'][$type]; } else { foreach( $this->msgTypes as $type ) { if( !empty($_SESSION['flash_messages']) ) return true; } } return false; } /** * Clear messages from the session data * * @author Mike Everhart * * @param string $type The type of messages to clear * @return bool * */ public function clear($type='all') { if( $type == 'all' ) { unset($_SESSION['flash_messages']); } else { unset($_SESSION['flash_messages'][$type]); } return true; } public function __toString() { return $this->hasMessages(); } public function __destruct() { //$this->clear(); } } // end class ?>