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ob.lib.php
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PHP Script
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2002-01-06
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4KB
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125 lines
<?php
/* $Id: ob.lib.php,v 1.3 2001/11/23 01:04:57 loic1 Exp $ */
if (!defined('PMA_OB_LIB_INCLUDED')) {
define('PMA_OB_LIB_INCLUDED', 1);
# 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 (PMA_PHP_INT_VERSION >= 40000 && @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 (PMA_PHP_INT_VERSION >= 40000 && @ini_get('output_handler')) {
if (@ini_get('output_handler') == 'ob_gzhandler') {
$mode = 0;
}
} else if (PMA_PHP_INT_VERSION >= 40000) {
if (@get_cfg_var('output_handler') == 'ob_gzhandler') {
$mode = 0;
}
}
// End patch
// 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
} // $__PMA_OB_LIB__
?>