Unable to export large number of leads when i edit export.php?

Hi,
Using SuiteCRM 7.8.7 - Unable to export large volume of leads. Exporting of leads to excell works fine for small volumes (first page), but not all leads(all pages). When I check “all” leads and “export,” the browser page turns white and hangs every time.
I edit export.php like this. My addition code is under the “my added code” tag. Anybody help me?

<?php
if(!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');
/*********************************************************************************
 * SugarCRM Community Edition is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2013 SugarCRM Inc.

 * SuiteCRM is an extension to SugarCRM Community Edition developed by Salesagility Ltd.
 * Copyright (C) 2011 - 2014 Salesagility Ltd.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Affero General Public License along with
 * this program; if not, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 *
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo and "Supercharged by SuiteCRM" logo. If the display of the logos is not
 * reasonably feasible for  technical reasons, the Appropriate Legal Notices must
 * display the words  "Powered by SugarCRM" and "Supercharged by SuiteCRM".
 ********************************************************************************/

//Bug 30094, If zlib is enabled, it can break the calls to header() due to output buffering. This will only work php5.2+
ini_set('zlib.output_compression', 'Off');

ob_start();
require_once('include/export_utils.php');
global $sugar_config;
global $locale;
global $current_user;
global $app_list_strings;

$the_module = clean_string($_REQUEST['module']);

if($sugar_config['disable_export'] 	|| (!empty($sugar_config['admin_export_only']) && !(is_admin($current_user) || (ACLController::moduleSupportsACL($the_module)  && ACLAction::getUserAccessLevel($current_user->id,$the_module, 'access') == ACL_ALLOW_ENABLED &&
    (ACLAction::getUserAccessLevel($current_user->id, $the_module, 'admin') == ACL_ALLOW_ADMIN ||
     ACLAction::getUserAccessLevel($current_user->id, $the_module, 'admin') == ACL_ALLOW_ADMIN_DEV))))){
	die($GLOBALS['app_strings']['ERR_EXPORT_DISABLED']);
}

//check to see if this is a request for a sample or for a regular export
if(!empty($_REQUEST['sample'])){
    //call special method that will create dummy data for bean as well as insert standard help message.
    $content = exportSample(clean_string($_REQUEST['module']));

}else if(!empty($_REQUEST['uid'])){
	$content = export(clean_string($_REQUEST['module']), $_REQUEST['uid'], isset($_REQUEST['members']) ? $_REQUEST['members'] : false);
}else{
	$content = export(clean_string($_REQUEST['module']));
}
$filename = $_REQUEST['module'];
//use label if one is defined
if(!empty($app_list_strings['moduleList'][$_REQUEST['module']])){
    $filename = $app_list_strings['moduleList'][$_REQUEST['module']];
}

//strip away any blank spaces
$filename = str_replace(' ','',$filename);

$transContent = $GLOBALS['locale']->translateCharset($content, 'UTF-8', $GLOBALS['locale']->getExportCharset());

if($_REQUEST['members'] == true)
	$filename .= '_'.'members';
///////////////////////////////////////////////////////////////////////////////
////	BUILD THE EXPORT FILE
ob_clean();


*****************************************My added Code*************************************************************
if($the_module=='Leads') {
require_once("custom/soap_lib/nusoap.php");
		  $soapclient = new nusoap_client('https://mywsdl',true);	
		   
    	$myparam=$_REQUEST['uid']; 
		
			
       	if (empty($myparam)) {
		   
		    $sorgu="select id from leads inner join leads_cstm on (id_c=id) ".$_SESSION['export_where'];
			
			$res=$db->query($sorgu,true);
	        $counter=0;		
           while ($row = $db->fetchByAssoc($res)){
		                if($counter==0) $myparam=$row['id'];
 						else $myparam=$myparam.','.$row['id'];
			$counter=1;
			}
		}

		  	$params[] = array('name'=>'id', 'value'=>$myparam, 'hasMultiValues'=>0);
	
			$repparams = array('reportPath' =>'/IO - International Relations Office/UG Students Admissions List/UG Students Admissions List.xdo',
									'reportValues' => $params,
									'userName' =>'user',
									'passwd'  => 'xxxxxxxx',
									'format'  => 'excel',
									'template' => '/IO - International Relations Office/UG Students Admissions List/UG Students Admissions List/temp01.rtf');
			
				$report=$soapclient->call('getReportData',$repparams);
	

				// fix for IE catching or PHP bug issue
				header("Pragma: public");
				header("Expires: 0"); // set expiration time
				header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
				// browser must download file from server instead of cache
				
				// force download dialog
				header("Content-Type: application/force-download");
				header("Content-Type: application/octet-stream");
				header("Content-Type: application/download");
				
				// use the Content-Disposition header to supply a recommended filename and
				// force the browser to display the save dialog.
				header("Content-Disposition: attachment; filename=leadlist.xls;");
				
				/*
				The Content-transfer-encoding header should be binary, since the file will be read
				directly from the disk and the raw bytes passed to the downloading computer.
				The Content-length header is useful to set for downloads. The browser will be able to
				show a progress meter as a file downloads. The content-lenght can be determines by
				filesize function returns the size of a file.
				*/
				header("Content-Transfer-Encoding: binary");
			   echo $report;


}else{

*****************************************My added Code*************************************************************

header("Pragma: cache");
header("Content-type: application/octet-stream; charset=".$GLOBALS['locale']->getExportCharset());
header("Content-Disposition: attachment; filename={$filename}.csv");
header("Content-transfer-encoding: binary");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT" );
header("Last-Modified: " . TimeDate::httpTime() );
header("Cache-Control: post-check=0, pre-check=0", false );
if (!empty($sugar_config['export_excel_compatible'])) {
    $transContent=chr(255) . chr(254) . mb_convert_encoding($transContent, 'UTF-16LE', 'UTF-8');
}
header("Content-Length: ".mb_strlen($transContent, '8bit'));
print $transContent;
}
sugar_cleanup(true);

Blank pages are usually PHP Fatal errors, you should have a message in your Apache log (usually called php_errors.log or errors.log).

Thank you for answer. I solved my problem. I define $db in my code and my problem is solved.

Hello dtosun,

I am facing same problem will you pl explain where you define $db exactly

Cheers,
Deep

I define it after “///////////////////////////////////////////////////////////////////////////////
//// BUILD THE EXPORT FILE” tag in export.php file where is in root of your project.