php - Facing issue when trying to generate excel with multiple list drop-downs in same sheet -


i facing issue when trying generate excel more 1 type_list dropdown using phpexcel on symfony 2.8.

i using phpexcel_cell_datavalidation::type_list generate columns of drop-down type. code works fine when generating 1 column in active sheet drop-down. however, when trying generate more 1 columns drop-down type in sheet, getting unusable excel.

here sample screenshot of error getting on opening generated excel, enter image description here

here action code wrote,

//generating excel using phpexcel public function generateexcel2action(request $request) {     $responsestring = 'initial mem. '.(memory_get_peak_usage(true)/1024/1024).' mb <br>';     $starttime = microtime(true);      //make new object     $objphpexcel = new phpexcel();     //set properties     $objphpexcel->getproperties()->setcreator("ramit mitra")         ->setlastmodifiedby("ramit mitra")         ->settitle("sample excel doc")         ->setsubject("office 2007 xlsx test document")         ->setdescription("test document office 2007 xlsx, generated using phpexcel.")         ->setkeywords("office 2007 openxml php")         ->setcategory("test result file");      //excel headers     $objphpexcel->setactivesheetindex(0);     $objphpexcel->getactivesheet()->setcellvalue('a1', 'shipment number');     $objphpexcel->getactivesheet()->setcellvalue('b1', 'country');     $objphpexcel->getactivesheet()->setcellvalue('c1', 'region');     $objphpexcel->getactivesheet()->setcellvalue('d1', 'choose storage condition');     $objphpexcel->getactivesheet()->setcellvalue('e1', 'choose storage area');     $objphpexcel->getactivesheet()->setcellvalue('f1', 'choose text');     $objphpexcel->getactivesheet()->setcellvalue('g1', 'memory in use');      //query , set data     $em = $this->getdoctrine()->getmanager();     //create options     $susc = ['cold', 'hot', 'normal'];     $susa = ['sm', 'lg', 'xs', 'xl'];     $suht = ['text 1', 'text 2', 'text 3'];      $i = 2;     $allcountries = $em->getrepository('demobundle:country')->findall();     foreach($allcountries $key => $val) {         //shpno         $objphpexcel->getactivesheet()->setcellvalue("a$i", 'shp'.rand(10000,90000));         //country         $objphpexcel->getactivesheet()->setcellvalue("b$i", $val->getname());         //region         $objphpexcel->getactivesheet()->setcellvalue("c$i", $val->getregion()->getname());         //choose storage condition         $objvalidation = $objphpexcel->getactivesheet()->getcell("d$i")->getdatavalidation();         $objvalidation->settype(\phpexcel_cell_datavalidation::type_list);         $objvalidation->seterrorstyle(\phpexcel_cell_datavalidation::style_information);         $objvalidation->setallowblank(false);         $objvalidation->setshowinputmessage(true);         $objvalidation->setshowdropdown(true);         $objvalidation->setprompttitle('pick storage condition');         $objvalidation->setprompt('please pick value drop-down list.');         $objvalidation->seterrortitle('input error');         $objvalidation->seterror('value not in list');         $objvalidation->setformula1('"'.implode(',', $susc).'"');         unset($objvalidation);         //choose storage area         $objvalidation1 = $objphpexcel->getactivesheet()->getcell("e$i")->getdatavalidation();         $objvalidation1->settype(\phpexcel_cell_datavalidation::type_list);         $objvalidation1->seterrorstyle(\phpexcel_cell_datavalidation::style_information);         $objvalidation1->setallowblank(false);         $objvalidation1->setshowinputmessage(true);         $objvalidation1->setshowdropdown(true);         $objvalidation1->setprompttitle('pick storage area');         $objvalidation1->setprompt('please pick value drop-down list.');         $objvalidation1->seterrortitle('input error');         $objvalidation1->seterror('value not in list');         $objvalidation1->setformula1('"'.implode(',', $susa).'"');         unset($objvalidation1);         //choose text         $objvalidation2 = $objphpexcel->getactivesheet()->getcell("f$i")->getdatavalidation();         $objvalidation2->settype(\phpexcel_cell_datavalidation::type_list);         $objvalidation2->seterrorstyle(\phpexcel_cell_datavalidation::style_information);         $objvalidation2->setallowblank(false);         $objvalidation2->setshowinputmessage(true);         $objvalidation2->setshowdropdown(true);         $objvalidation2->setprompttitle('pick text');         $objvalidation2->setprompt('please pick value drop-down list.');         $objvalidation2->seterrortitle('input error');         $objvalidation2->seterror('value not in list');         $objvalidation2->setformula1('"'.implode(',', $suht).'"');         unset($objvalidation2);         //mem in use         $objphpexcel->getactivesheet()->setcellvalue("g$i", (memory_get_peak_usage(true)/1024/1024).' mb');         $i++;     }     unset($allcountries);     // create writer     $objwriter = \phpexcel_iofactory::createwriter($objphpexcel, 'excel2007');     $file = $this->get('kernel')->getrootdir() . "\..\web" . $this->getrequest()->getbasepath()."/temp/test2.xlsx";     $objwriter->save($file);     unset($objwriter);     $endtime = microtime(true) - $starttime;     $responsestring .= 'final mem. '.(memory_get_peak_usage(true)/1024/1024).' mb <br>'."file generated @ $file <br>executed in :: $endtime";     unset($starttime);     unset($endtime);     //send response     return new response($responsestring); }

please provide solution this. need generate multiple columns in same sheet drop-downs.

basic env details: windows 7 os, php 7.1.1 on xampp symfony 2.8.26


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