I have a piece of codes which is exporting csv and few image files inside a zip file, The csv and images were zipped and exported in a zip file successfully. However, my SQL data did not populate the csv file. Only a empty blank sheet in the csv file. what am i doing wrong?
if($_GET['exportdata'] == 'true'){
$datefrom = $_GET['datefrom'];
$dateto = $_GET['dateto'];
$filename = "data.csv"; // Create file name
$f = fopen('php://memory', 'w');
$fields = array('Sample No.',
'Wet Density Mg/m3');
fputcsv($f, $fields);
$query = "SELECT [SampleNo], [Density]
FROM EXPORT_DREDGER WHERE [Date] between ? and ?";
$params = array($datefrom, $dateto);
$stmt = sqlsrv_query($conn2, $query, $params);
while($row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_NUMERIC)){
$row[0];
$row[1];
fputcsv($f, $row);
}
//move back to beginning of file
fseek($f, 0);
//export image and csv files as zip file
$files = array('trip_image/A2002175102616/A2002175102616_img_0001.jpg', 'trip_image/A2002175102617/A2002175102617_img_0001.jpg', $filename);
$zipname = 'file.zip';
$zip = new ZipArchive;
$zip->open($zipname, ZipArchive::CREATE);
foreach ($files as $file) {
$zip->addFile($file, basename($file));
}
$zip->close();
header('Content-Type: application/octet-stream; charset=utf-8');
header('Content-disposition: attachment; filename='.$zipname.'.zip');
header('Content-Length: ' . filesize($zipname));
readfile($zipname);
fpassthru($f);
}
Related
This exports one file with 2 rows in it. How can export 2 files each with one row in it?
<?php
$list = array (
array("Peter", "Griffin" ,"Oslo", "Norway"),
array("Glenn", "Quagmire", "Oslo", "Norway")
);
$file = fopen("contacts.csv","w");
foreach ($list as $line) {
fputcsv($file, $line);
}
fclose($file);
?>
I tried this:
$list = array (
array("Peter", "Griffin" ,"Oslo", "Norway"),
array("Glenn", "Quagmire", "Oslo", "Norway")
);
$file = fopen('php://output', 'w');
$i = 1;
foreach ($list as $line) {
header('Content-Disposition: attachment; filename="' . $i . 'wp.csv"');
fputcsv($file, $line);
fclose($file);
$i++;
}
But it only downloads one file. At least it only has the one row in it though.
I found this example. Even though it creates 2 separate csv files, the data is identical in each file instead of each file containing an individual record.
// some data to be used in the csv files
$headers = array('id', 'name', 'age', 'species');
$records = array(
array('1', 'gise', '4', 'cat'),
array('2', 'hek2mgl', '36', 'human')
);
// create your zip file
$zipname = 'file.zip';
$zip = new ZipArchive;
$zip->open($zipname, ZipArchive::CREATE);
// loop to create 3 csv files
for ($i = 0; $i < 3; $i++) {
// create a temporary file
$fd = fopen('php://temp/maxmemory:1048576', 'w');
if (false === $fd) {
die('Failed to create temporary file');
}
// write the data to csv
fputcsv($fd, $headers);
foreach($records as $record) {
fputcsv($fd, $record);
}
// return to the start of the stream
rewind($fd);
// add the in-memory file to the archive, giving a name
$zip->addFromString('file-'.$i.'.csv', stream_get_contents($fd) );
//close the file
fclose($fd);
}
// close the archive
$zip->close();
header('Content-Type: application/zip');
header('Content-disposition: attachment; filename='.$zipname);
header('Content-Length: ' . filesize($zipname));
readfile($zipname);
// remove the zip archive
// you could also use the temp file method above for this.
unlink($zipname);
You can only put one "file" into an HTTP response.
If you want to generate multiple CSV files then you'll need to get more exotic. You could generate a HTML document of links to URLs that each generate a CSV file, or you could generate a zip file containing the CSV files.
Just make a new File and use it like this
$file2 = fopen("contacts2.csv", "w");
fputcsv($file2, $list[1]);
You always write in the same file here, because you are refering to $file
fputcsv($file, $list[1]);
I have written this code to download files after adding them in a zip file. However, my code removes the files which have the same name ( duplicate ).
<?php
# define file array
$files = array(
'https://www.fbise.edu.pk/Old%20Question%20Paper/2017/SSC-II/Chemistry.PDF',
'https://www.fbise.edu.pk/Old%20Question%20Paper/2018/SSC-II/Chemistry.PDF',
'https://www.fbise.edu.pk/Old%20Question%20Paper/2018/SSC-II/Physics.PDF',
'https://www.fbise.edu.pk/Old%20Question%20Paper/2017/SSC-II/Physics.PDF',
);
# create new zip object
$zip = new ZipArchive();
# create a temp file & open it
$tmp_file = tempnam('.', '');
$zip->open($tmp_file, ZipArchive::CREATE);
# loop through each file
foreach ($files as $file) {
# download file
$download_file = file_get_contents($file);
#add it to the zip
$zip->addFromString(basename($file), $download_file);
}
# close zip
$zip->close();
# send the file to the browser as a download
header('Content-disposition: attachment; filename="my file.zip"');
header('Content-type: application/zip');
readfile($tmp_file);
unlink($tmp_file);
?>
So my question is,
How can I download duplicate files from an array?
or
How can I change the names of duplicate files?
Just rename your files.
<?php
# define file array
$files = array(
'https://www.fbise.edu.pk/Old%20Question%20Paper/2017/SSC-II/Chemistry.PDF',
'https://www.fbise.edu.pk/Old%20Question%20Paper/2018/SSC-II/Chemistry.PDF',
'https://www.fbise.edu.pk/Old%20Question%20Paper/2018/SSC-II/Physics.PDF',
'https://www.fbise.edu.pk/Old%20Question%20Paper/2017/SSC-II/Physics.PDF',
);
# create new zip object
$zip = new ZipArchive();
# create a temp file & open it
$tmp_file = tempnam('.', '');
$zip->open($tmp_file, ZipArchive::CREATE);
// Variable to Keep Filenames
$filename = '';
// Variable to add "-1, -2" to duplicate files
$i = 1;
# loop through each file
foreach ($files as $file) {
# download file
$download_file = file_get_contents($file);
if ( $filename == basename($file) )
{
// If this file already exists add "-1, -2"
$filename = $i . '-' . basename($file);
$i++;
} else
{
$filename = basename($file);
$i = 1;
}
#add it to the zip
$zip->addFromString($filename, $download_file);
}
# close zip
$zip->close();
# send the file to the browser as a download
header('Content-disposition: attachment; filename="my file.zip"');
header('Content-type: application/zip');
readfile($tmp_file);
unlink($tmp_file);
?>
Edit after #RiggsFolly Comment to support out of order duplicate files
<?php
# define file array
$files = array(
'https://www.fbise.edu.pk/Old%20Question%20Paper/2017/SSC-II/Chemistry.PDF',
'https://www.fbise.edu.pk/Old%20Question%20Paper/2018/SSC-II/Chemistry.PDF',
'https://www.fbise.edu.pk/Old%20Question%20Paper/2018/SSC-II/Physics.PDF',
'https://www.fbise.edu.pk/Old%20Question%20Paper/2017/SSC-II/Physics.PDF',
);
# create new zip object
$zip = new ZipArchive();
# create a temp file & open it
$tmp_file = tempnam('.', '');
$zip->open($tmp_file, ZipArchive::CREATE);
// Array to keep filenames
$filenames = array();
# loop through each file
foreach ($files as $file) {
# download file
$download_file = file_get_contents($file);
if( array_key_exists( basename($file), $filenames ) )
{
$filename = $filenames[basename($file)] . '-' . basename($file);
$filenames[basename($file)] = $filenames[basename($file)] + 1;
} else
{
$filename = basename($file);
$filenames[basename($file)] = 1;
}
#add it to the zip
$zip->addFromString($filename, $download_file);
}
# close zip
$zip->close();
# send the file to the browser as a download
header('Content-disposition: attachment; filename="my file.zip"');
header('Content-type: application/zip');
readfile($tmp_file);
unlink($tmp_file);
?>
I have a requirement to create 3 CSV files (in memory) during a single HTTP request, ZIP the files into a single compressed file and return the compressed file as a HTTP response.
I have the following code to create the zip file...
$files = array($file1, $file2);
$zipname = 'file.zip';
$zip = new ZipArchive;
$zip->open($zipname, ZipArchive::CREATE);
foreach ($files as $file) {
$zip->addFile($file);
}
$zip->close();
header('Content-Type: application/zip');
header('Content-disposition: attachment; filename='.$zipname);
header('Content-Length: ' . filesize($zipname));
readfile($zipname);
However, I don't know how to create the CSV files in memory.
How can I achieve this?
Try this...
// some data to be used in the csv files
$headers = array('id', 'name', 'age', 'species');
$records = array(
array('1', 'gise', '4', 'cat'),
array('2', 'hek2mgl', '36', 'human')
);
// create your zip file
$zipname = 'file.zip';
$zip = new ZipArchive;
$zip->open($zipname, ZipArchive::CREATE);
// loop to create 3 csv files
for ($i = 0; $i < 3; $i++) {
// create a temporary file
$fd = fopen('php://temp/maxmemory:1048576', 'w');
if (false === $fd) {
die('Failed to create temporary file');
}
// write the data to csv
fputcsv($fd, $headers);
foreach($records as $record) {
fputcsv($fd, $record);
}
// return to the start of the stream
rewind($fd);
// add the in-memory file to the archive, giving a name
$zip->addFromString('file-'.$i.'.csv', stream_get_contents($fd) );
//close the file
fclose($fd);
}
// close the archive
$zip->close();
header('Content-Type: application/zip');
header('Content-disposition: attachment; filename='.$zipname);
header('Content-Length: ' . filesize($zipname));
readfile($zipname);
// remove the zip archive
// you could also use the temp file method above for this.
unlink($zipname);
I've just tested this on my machine and it works fine.
I used this link as a reference, It may be useful.
MetaShock Reference
You can use php's memory wrapper:
$zipname = 'php://memory';
On systems having /dev/shm filesystem you can create files there, they will be kept only in memory and only accessible to current process. Don't forget to remove them after sending, web server process will keep running.
This script successfully generated the pdfs to a folder tmp/....
However the ZIP output to the browser is empty and I don't know what I have done wrong.
$file = tempnam("tmp", "zip");
$zip = new ZipArchive();
// Zip will open and overwrite the file, rather than try to read it.
$zip->open($file, ZipArchive::OVERWRITE);
foreach( explode( ',', $_POST["ids"]) as $Client_ID)
{
$sql_qry="select *
from ca_client_statement
where client_id='".$Client_ID."' and trading_period_month like '".$TP_Month."'";
$sql_err_no=sql_select($sql_qry,$sql_res,$sql_row_count,$sql_err,$sql_uerr);
//echo $sql_qry;
//echo '<br/>';
$row = mysql_fetch_assoc($sql_res);
$file_content = $row['pdf_statement'];
$file_name = 'tmp/'.$Client_ID.'statement.pdf';
$pdf=file_put_contents($file_name, $file_content);
$zip->addFile($pdf);
}
$zip->close();
// Stream the file to the client
header("Content-Type: application/zip");
header("Content-Length: " . filesize($file));
header("Content-Disposition: attachment; filename=\"a_zip_file.zip\"");
readfile($file);
unlink($file);
file_put_contents() returns the number of bytes written, not the file name. Try changing the line right after it to this:
$zip->addFile($file_name);
I have a database table that contains numerous PDF blob files. I am attempting to combine all of the files into a single ZIP file that I can download and then print.
Please help!
<?php
include '../config.php';
include '../connect.php';
$session = $_GET['session'];
$query = "SELECT $tbl_uploads.username, $tbl_uploads.description,
$tbl_uploads.type, $tbl_uploads.size, $tbl_uploads.content,
$tbl_members.session
FROM $tbl_uploads
LEFT JOIN $tbl_members
ON $tbl_uploads.username = $tbl_members.username
WHERE $tbl_members.session = '$session'";
$result = mysql_query($query) or die('Error, query failed');
$files = array();
while(list($username, $description, $type, $size, $content) =
mysql_fetch_array($result)) {
$files[] = "$username-$description.pdf";
}
$zip = new ZipArchive;
$zip->open('file.zip', ZipArchive::CREATE);
foreach ($files as $file) {
$zip->addFile($file);
}
$zip->close();
header('Content-Type: application/zip');
header('Content-disposition: attachment; filename=filename.zip');
header('Content-Length: ' . filesize($zipfilename));
readfile($zipname);
exit();
?>
Your PDF data is stored in the database in BLOB fields, I don't see you putting this data in a file. So your ZIP will not contain any files because you don't add real existing files to it.
This is what you are currently doing:
Reading your data from the database
Creating an array of filenames
Creating a ZIP of filenames that might not exist
This what you should do:
Reading your data from the database
Creating an array of filenames
Write your BLOB data into that files
Creating a ZIP of files that exist
Example:
$files = array();
while(list($username, $description, $type, $size, $content) =
mysql_fetch_array($result)) {
$files[] = "$username-$description.pdf";
// write the BLOB Content to the file
if ( file_put_contents("$username-$description.pdf", $content) === FALSE ) {
echo "Could not write PDF File";
}
}
What you should do if that works for you:
Write the files in a temporary folder (maybe with some help of http://php.net/tempnam) somewhere else and maybe remove them after your archiving process.
There is also a second problem in your code, you use $zipfilename for calculating the content-length and $zipname to read the file and no variable to create the zip. Since $zipfilename and $zipname is not defined, this won't work.
You should define $zipfilename with a ZIP filename and also use that same variable when creating the zip file.
Example:
// a temp filename containing the current unix timestamp
$zipfilename = 'temp_' . time() . '.zip';
$zip->open($zipfilename, ZipArchive::CREATE);
foreach ($files as $file) {
$zip->addFile($file);
}
$zip->close();
header('Content-Type: application/zip');
header('Content-disposition: attachment; filename=filename.zip');
header('Content-Length: ' . filesize($zipfilename));
readfile($zipfilename);
pdftk will merge multiple PDF files, as well as PDFsam..