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- <?php
- /* $Id: ob.lib.php,v 2.2 2003/11/26 22:52:23 rabus Exp $ */
- // vim: expandtab sw=4 ts=4 sts=4:
-
-
- /**
- * Output buffer functions for phpMyAdmin
- *
- * Copyright 2001 Jeremy Brand <jeremy@nirvani.net>
- * http://www.jeremybrand.com/Jeremy/Brand/Jeremy_Brand.html
- *
- * Check for all the needed functions for output buffering
- * Make some wrappers for the top and bottoms of our files.
- */
-
- /**
- * This function be used eventually to support more modes. It is needed
- * because both header and footer functions must know what each other is
- * doing.
- *
- * @return integer the output buffer mode
- */
- function PMA_outBufferModeGet()
- {
- if (@function_exists('ob_start')) {
- $mode = 1;
- } else {
- $mode = 0;
- }
-
- // If a user sets the output_handler in php.ini to ob_gzhandler, then
- // any right frame file in phpMyAdmin will not be handled properly by
- // the browser. My fix was to check the ini file within the
- // PMA_outBufferModeGet() function.
- //
- // (Patch by Garth Gillespie, modified by Marc Delisle)
- if (@ini_get('output_handler') == 'ob_gzhandler') {
- $mode = 0;
- }
- if (@get_cfg_var('output_handler') == 'ob_gzhandler') {
- $mode = 0;
- }
- // End patch
-
- // If output buffering is enabled in php.ini it's not possible to
- // add the ob_gzhandler without a warning message from php 4.3.0.
- // Being better safe than sorry, check for any existing output handler
- // instead of just checking the 'output_buffering' setting.
- //
- if (@function_exists('ob_get_level')) {
- if (ob_get_level() > 0) {
- $mode = 0;
- }
- }
-
- // Zero (0) is no mode or in other words output buffering is OFF.
- // Follow 2^0, 2^1, 2^2, 2^3 type values for the modes.
- // Usefull if we ever decide to combine modes. Then a bitmask field of
- // the sum of all modes will be the natural choice.
-
- header('X-ob_mode: ' . $mode);
-
- return $mode;
- } // end of the 'PMA_outBufferModeGet()' function
-
-
- /**
- * This function will need to run at the top of all pages if output
- * output buffering is turned on. It also needs to be passed $mode from
- * the PMA_outBufferModeGet() function or it will be useless.
- *
- * @param integer the output buffer mode
- *
- * @return boolean whether output buffering is enabled or not
- */
- function PMA_outBufferPre($mode)
- {
- switch($mode)
- {
- case 1:
- ob_start('ob_gzhandler');
- $retval = TRUE;
- break;
-
- case 0:
- $retval = FALSE;
- break;
-
- // loic1: php3 fix
- default:
- $retval = FALSE;
- break;
- } // end switch
-
- return $retval;
- } // end of the 'PMA_outBufferPre()' function
-
-
- /**
- * This function will need to run at the bottom of all pages if output
- * buffering is turned on. It also needs to be passed $mode from the
- * PMA_outBufferModeGet() function or it will be useless.
- *
- * @param integer the output buffer mode
- *
- * @return boolean whether data has been send from the buffer or not
- */
- function PMA_outBufferPost($mode)
- {
- switch($mode)
- {
- case 1:
- # This output buffer doesn't need a footer.
- $retval = TRUE;
- break;
-
- case 0:
- $retval = FALSE;
- break;
-
- // loic1: php3 fix
- default:
- $retval = FALSE;
- break;
- } // end switch
-
- return $retval;
- } // end of the 'PMA_outBufferPost()' function
-
- ?>
-