StackOverflow2013

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plurals

PO
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Id
18136820
data
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2013-08-08T21:54:40.413
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2013-08-08T23:00:36.347
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2013-08-08T23:00:36.347
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18136687
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2
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text
Body
<p>There are three problems:</p> <ol> <li>The onclick expects JavaScript, you just give it an URL. Maybe try it with a small form?</li> <li>The <code>$file_array</code> is a <a href="http://www.php.net/manual/en/pdostatement.fetch.php" rel="nofollow">PDOStatement</a> and you have to fetch the data first by <a href="http://www.php.net/manual/en/pdostatement.fetchall.php" rel="nofollow">fetchAll()</a> or <a href="http://www.php.net/manual/en/pdostatement.fetch.php" rel="nofollow">fetch()</a> and then encode it with <a href="http://de2.php.net/manual/en/function.json-encode.php" rel="nofollow">json_encode()</a> and <a href="http://de2.php.net/manual/en/function.htmlspecialchars.php" rel="nofollow">htmlspecialchars()</a>.</li> <li>The <code>foreach</code> has a wrong format.</li> </ol> <p>Try the following:</p> <pre> <?php $file_array=$db->prepare("SELECT UserID, UserName FROM UserProfile"); $file_array->execute(); ?> <form method="POST" action="download_file.php"> <input type="hidden" name="pass_array" value="<?php echo htmlspecialchars(json_encode($file_array->fetchAll(PDO::FETCH_NUM)); ?>"> <input type="submit"> </form> </pre> <p>To get the data in the <code>download_file.php</code>:</p> <pre> function output_csv ($data) { $filename = "exportfile.csv"; $handle = fopen($filename, 'w+'); fputcsv($handle, array('UserID','UserName')); foreach($data as $row) { fputcsv($handle, $row); } fclose($handle); } $file_array = json_decode($_REQUEST['pass_array']); output_csv($file_array); </pre> <p>Another benefit of the post form is that the data will be transferred in an invisible way. So you don't see really long and strange URLs in the browser. Also the amount of data that could be transferred is a lot higher.</p>
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1. POSending a PHP variable to a new file on button onClick
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