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POPHPexcel Library Error when exporting from database
 

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  1. POPHPexcel Library Error when exporting from database
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    <p>I am using the PHPexcel Library for my reporting. It functions well when I'm using static values but, when I try to export my data in MySQL database to PHPexcel, </p> <p>it always gives me this error</p> <pre><code>Warning: Cannot modify header information - headers already sent </code></pre> <p>I've tried <code>ob_start()</code> function but the moment i opened my downloaded excel, it is empty</p> <p>this is my PHPexcel code:</p> <pre><code>&lt;?php include("conn.php"); $query ="Select * from info"; $result = mysql_query($query); /** Error reporting */ error_reporting(E_ALL); /** Include path **/ ini_set('include_path', ini_get('include_path').';../Classes/'); /** PHPExcel */ include 'PHPExcel.php'; /** PHPExcel_Writer_Excel2007 */ include 'PHPExcel/Writer/Excel2007.php'; // Create new PHPExcel object echo date('H:i:s') . " Create new PHPExcel object\n"; $objPHPExcel = new PHPExcel(); // Add some data $row1=1; $row2=1; $row3=1; echo date('H:i:s') . " Add some data\n"; $objPHPExcel-&gt;setActiveSheetIndex(0); while($row = mysql_fetch_array($result)) { $let1 = "A".$row1.""; $let2 = "B".$row2.""; $let3 = "C".$row3.""; $objPHPExcel-&gt;getActiveSheet()-&gt;SetCellValue($let1, $row['id']); $objPHPExcel-&gt;getActiveSheet()-&gt;SetCellValue($let2, $row['name']); $objPHPExcel-&gt;getActiveSheet()-&gt;SetCellValue($let3, $row['age']); $row1++; $row2++; $row3++; } $objPHPExcel-&gt;getActiveSheet()-&gt;getStyle("A1:C1")-&gt;getFont()-&gt;setBold(true); $objPHPExcel-&gt;getActiveSheet()-&gt;getStyle("A1:C1")-&gt;getFont()-&gt;setSize(20); $objPHPExcel-&gt;setActiveSheetIndex(0)-&gt;mergeCells('A1:C1'); $objPHPExcel-&gt;getActiveSheet()-&gt;getStyle('A1')-&gt;applyFromArray( array( 'fill' =&gt; array( 'type' =&gt; PHPExcel_Style_Fill::FILL_SOLID, 'color' =&gt; array('rgb' =&gt; 'FF0000') ) ) ); header("Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"); header("Content-Disposition: attachment;filename=\"filename.xlsx\""); header("Cache-Control: max-age=0"); exit(); ?&gt; </code></pre> <p>It works perfect dealing with static values but when I tried to dynamically add values, it messes up. Please help, thank u in advance</p>
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    1. USBongsky
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      1. POPHPexcel Library Error when exporting from database
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    2. VO
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      1. VTUpMod
    1. COIf you have anything above PHP, be it a space, a cookie, sessions, it could cause this. A byte order mark will also cause this.
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      1. USFunk Forty Niner
    2. COi dont have any other code above my php... it just pure php, no sessions, no cookie
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      1. USBongsky
    3. COTry and put your headers then, underneath your opening `<?php` tag. Or try the answer given below.
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      1. USFunk Forty Niner
 

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