checkPHPVersion(); // Set the script name and version $this->scriptName = $scriptName; $this->version = $version; // Set the display setting $this->display = ( !defined('DISPLAY') || true === DISPLAY ? true : false ); // Query Limit if( defined('LIMIT') ) { $this->limit = ( ( is_int(LIMIT) && 0 < LIMIT ) ? LIMIT : false ); } // Should data be removed? if( defined('REMOVE') ) { $this->remove = ( ( true === REMOVE ) ? true : false ); } // Should data be updated? if( defined('UPDATE') ) { $this->update = ( ( true === UPDATE ) ? true : false ); } // Debug mode? if( defined('DEBUG') ) { $this->debug = ( ( true === DEBUG ) ? true : false ); } } /** * Destructor * */ public function __destruct() { if( isset( $_SERVER["HTTP_HOST"] ) && true === $this->display ) { echo ''; } } /** * Check php version to be 5.4 or greater * * @throws Exception * @return void */ protected function checkPHPVersion() { // Init $current = ( false === strpos( phpversion(), '-' ) ? phpversion() : substr( phpversion(), 0, strpos( phpversion(), '-' ) ) ); $required = '5.3.10'; if( 0 > strnatcmp( $current, $required ) ) { throw new Exception( sprintf( 'NNScripts'. PHP_EOL .'Error: PHP version %s is required but version %s is found.', $required, $current ) ); } } /** * Display a message * * The function will also try to detect a browser call and convert * new-lines to
's * * @param string $message * @return void */ public function display( $message ) { if( true === $this->display ) { // Convert for webbrowser? if( isset( $_SERVER["HTTP_HOST"] ) ) { $message = nl2br( $message ); } // Display echo $message; } } /** * Display a page start * Only usefull when viewing with a webbrowser * * @return void */ public function displayPageStart() { if( isset( $_SERVER["HTTP_HOST"] ) && true === $this->display ) { echo '

';
        }
    }       


    /**
     * Display the header line and settings info
     * 
     * @return void
     */
    public function displayHeader()
    {
        // Display the page start in case of an html page
        $this->displayPageStart();
        
        // Display the script header line
        $this->display( sprintf( "%s - version %s". PHP_EOL, $this->scriptName, $this->version ) );
        
        // Display settings?
        if( null !== $this->limit || null !== $this->remove || null !== $this->update )
        {
            $this->display( PHP_EOL .'Settings:' );

            // Display the "debug" setting
            if( true === $this->debug )
            {
                 $this->display( PHP_EOL . "- debug mode enabled" );
            }
            
            // Display the "limit" setting
            if( null !== $this->limit )
            {
                $line = 'no limit';
                if( is_int($this->limit) )
                {
                    $line = sprintf( "%d hour%s", $this->limit, ( 1 < $this->limit ? 's' : '' ) );
                }
                $this->display( PHP_EOL . sprintf( "- limit : %s", $line ) );
            }
        
            // Display the "remove" setting
            if( null !== $this->remove )
            {
                $line = "Data will be removed.";
                if( true !== $this->remove )
                {
                    $line = 'No data is removed from the database!'. PHP_EOL .'          Change the "REMOVE" setting if you want to remove releases or parts';
                }
                $this->display( PHP_EOL . sprintf( "- remove: %s", $line ) );
            }
            
            // Display the "update" setting
            if( null !== $this->update )
            {
                $line = "Data will be updated.";
                if( true !== $this->update )
                {
                    $line = 'No data is updated in the database!'. PHP_EOL .'          Change the "UPDATE" setting if you want to enable update';
                }
                $this->display( PHP_EOL . sprintf( "- update: %s", $line ) );
            }
        
            // Spacer
            $this->display( PHP_EOL );
        }
        
        // End spacer
        $this->display( PHP_EOL );
    }
}