PHP export Excel file Problem! Ask for salvation ~ ~

Post Code First:

Public Function Check_daochu ($data) {$this->load->library (' Phpexcel ');        $this->load->library (' phpexcel/iofactory ');        $objPHPExcel = new Phpexcel ();        $objWriter = new phpexcel_writer_excel2007 ($objPHPExcel);        Set Header $this->excel_bt ($objPHPExcel, $data [' bt_data ']);        The exported class capacity $this->EXCEL_LR ($objPHPExcel, $data [' data ']);        Sets the width of the cell $objPHPExcel->getactivesheet ()->getcolumndimension (' B ')->setwidth (15); foreach ($data [' Hb_data '] as $key = + $value) {//merged cells $objPHPExcel->getactivesheet ()->merg Ecells ($key. ':' .        $value); }//Horizontal vertical centering setting $objPHPExcel->getactivesheet ()->getstyle (' A1 ')->getalignment ()->setvertical (phpexce        L_style_alignment::vertical_center); $objPHPExcel->getactivesheet ()->getstyle (' A1 ')->getalignment ()->sethorizontal (phpexcel_style_        Alignment::horizontal_center); $fieldname = Iconv (' utf-8 ', ' gb2312 ', Date ("Y-m-d", Time ()). '_' .        $data [' Bt_data '] [' A1 ']);        Ob_end_clean ();        Header ("Pragma:public");        Header ("expires:0");        Header ("Cache-control:must-revalidate, Post-check=0, pre-check=0");        Header ("Content-type:application/force-download");        Header ("Content-type:application/vnd.ms-execl");        Header ("Content-type:application/octet-stream");        Header ("Content-type:application/download"); Header (' Content-disposition:attachment;filename= '. $fieldname.        '. xlsx ');        Header ("Content-transfer-encoding:binary");    $objWriter->save (' php://output ');            }//set the method for exporting headers public function excel_bt ($objPHPExcel, $bt _data) {foreach ($bt _data as $key + $value) {        $objPHPExcel->getactivesheet ()->setcellvalue ($key, $value);        }}//Set the exported content public function Excel_lr ($objPHPExcel, $select _data) {$i = 3; $data = Array (' A ', ' B ', ' C ', ' D ', ' E ', ' F ', ' G ', ' H ', ' I ', ' J ', ' K ', ' L ', 'M ', ' N ', ' O ', ' P ', ' Q ', ' R ', ' S ', ' T ', ' U ', ' V ', ' W ', ' X ', ' Y ', ' Z ');            foreach ($select _data as $key = + $value) {$j = 0;                foreach ($value as $k = + $v) {$objPHPExcel->getactivesheet ()->setcellvalue ($data [$j]. $i, $v);            $j + +;        } $i + +; }    }

The following error occurred in the export:

Reply content:

Paste the code First:

Public Function Check_daochu ($data) {$this->load->library (' Phpexcel ');        $this->load->library (' phpexcel/iofactory ');        $objPHPExcel = new Phpexcel ();        $objWriter = new phpexcel_writer_excel2007 ($objPHPExcel);        Set Header $this->excel_bt ($objPHPExcel, $data [' bt_data ']);        The exported class capacity $this->EXCEL_LR ($objPHPExcel, $data [' data ']);        Sets the width of the cell $objPHPExcel->getactivesheet ()->getcolumndimension (' B ')->setwidth (15); foreach ($data [' Hb_data '] as $key = + $value) {//merged cells $objPHPExcel->getactivesheet ()->merg Ecells ($key. ':' .        $value); }//Horizontal vertical centering setting $objPHPExcel->getactivesheet ()->getstyle (' A1 ')->getalignment ()->setvertical (phpexce        L_style_alignment::vertical_center); $objPHPExcel->getactivesheet ()->getstyle (' A1 ')->getalignment ()->sethorizontal (phpexcel_style_        Alignment::horizontal_center); $fieldname = Iconv (' utf-8 ', ' gb2312 ', Date ("Y-m-d", Time ()). '_' .        $data [' Bt_data '] [' A1 ']);        Ob_end_clean ();        Header ("Pragma:public");        Header ("expires:0");        Header ("Cache-control:must-revalidate, Post-check=0, pre-check=0");        Header ("Content-type:application/force-download");        Header ("Content-type:application/vnd.ms-execl");        Header ("Content-type:application/octet-stream");        Header ("Content-type:application/download"); Header (' Content-disposition:attachment;filename= '. $fieldname.        '. xlsx ');        Header ("Content-transfer-encoding:binary");    $objWriter->save (' php://output ');            }//set the method for exporting headers public function excel_bt ($objPHPExcel, $bt _data) {foreach ($bt _data as $key + $value) {        $objPHPExcel->getactivesheet ()->setcellvalue ($key, $value);        }}//Set the exported content public function Excel_lr ($objPHPExcel, $select _data) {$i = 3; $data = Array (' A ', ' B ', ' C ', ' D ', ' E ', ' F ', ' G ', ' H ', ' I ', ' J ', ' K ', ' L ', 'M ', ' N ', ' O ', ' P ', ' Q ', ' R ', ' S ', ' T ', ' U ', ' V ', ' W ', ' X ', ' Y ', ' Z ');            foreach ($select _data as $key = + $value) {$j = 0;                foreach ($value as $k = + $v) {$objPHPExcel->getactivesheet ()->setcellvalue ($data [$j]. $i, $v);            $j + +;        } $i + +; }    }

The following error occurred in the export:

What do you mean by that?

register_shutdown_function(function(){    $lastError = error_get_last();    if ($lastError) {        error_log(json_encode($lastError));    }});

You open it with a notepad to see if there's an error.
Normally, this is a mistake.

The previous post, still did not find the reason?

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