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);
Related
I searched and tried a few previous questions/example codes, but couldn't get this to work.
I'm trying to deliver the results to end-users via PHP code. Here is my code.
$varZipFile = $varBaseNameParts[0] . '.' . $varDate . '.zip';
$varZipDir = $varBaseNameParts[0] . '_' . $varDate;
$zip = new ZipArchive();
$zip->open($varZipFile, ZipArchive::CREATE | ZipArchive::OVERWRITE);
$zip->addFile('008.csv');
$zip->addFile('002.csv');
$zip->close(); // mark line xxx
header("Content-Type: application/zip");
header("Content-disposition: attachment;filename=$varZipFile");
header('Content-Length: ' . filesize($varZipFile)); // with or without this line, got the same error
header("Content-Type: application/force-download"); // with or without this line, got the same error
readfile($varZipFile);
I got the .zip file in my browser. However WinZip cannot open it, neither can 7-Zip. WinZip complains that "Error: Central directory not found".
Interestingly, when I manually transfer the file via WinSCP from my server to my Windows machine, I can open the file with either WinZip or 7-Zip. This indicates it works all fine to 'mark line xxx', and problems occurs in the header lines.
TIA!
Your ouput buffer may not be cleared before you try to serve the download. Try to clean the output buffer before serving the download with the ob_clean() function like this:
$zip->close(); // mark line xxx
ob_clean();
Your code is working well on my side, debug this $varBaseNameParts[0] to see if the value is correct or try the below code.
// $name = name of the archive
// $archive_directory = directory to save the archive
// $file_array = list of files
function create_archive($name, $archive_directory, $file_array) {
$target_file = $archive_directory . '/' . $name . date('m-d-y').date('h-i-sa') . '.zip';
$zip = new ZipArchive();
if (count($file_array)) {
if ($zip->open($target_file, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE)) {
foreach ($file_array as $file) {
$zip->addFile($file);
}
$zip->close();
chmod($target_file, 0777);
return $target_file;
}
}
return null;
}
function create_download($archive) {
$file_name = basename($archive);
header("Content-Type: application/zip");
header("Content-Disposition: attachment; filename=$file_name");
header("Content-Length: " . filesize($archive));
readfile($archive);
}
// create the archive file
$archive = create_archive('test', 'archive', ['008.csv', '002.csv']);
if ($archive) {
create_download($archive);
}
I'd like a bit of help debugging this code. I'm trying to zip some files, which I provide as paths to Ziparchive. I think the zip file is empty, possibly. When I test this on a staging site I get a 'decompression failed' error. When I test this locally I get the following error in php logs
PHP Warning: readfile(images.zip): failed to open stream: No such file or directory in /Applications/MAMP/htdocs/8018_Whites/wordpress/downloadzip.php on line 29.
Here is the code:
<?php
//get image urls string
//$cat_string = "url1,url2,url3..."
if (isset($_GET['category-images'])) {
$cat_string=$_GET['category-images'];
}
//change string to array
$cat_array=explode(",", $cat_string);
$files=$cat_array;
$zipname = 'images.zip';
$zip = new ZipArchive;
$zip->open($zipname, ZipArchive::CREATE);
foreach ($files as $file) {
if(!strstr($file,'.php')) $zip->addFile($file);
}
$zip->close();
if ($zipname) {
header('Content-Type: application/zip');
header('Content-disposition: attachment; filename='.$zipname);
header('Content-Length: ' . filesize($zipname));
readfile($zipname);
exit();
}
?>
Do I need to add ob_start/ob_flush to this code, and should I put the ob_flush after readfile?
All files and Zip folder to give absolute path. so zip is properly created.
<?php
$zip_root ='/var/www/gplhome/'
$file_root ='/var/www/gplhome/project/'
//get image urls string
//$cat_string = "url1,url2,url3..."
if (isset($_GET['category-images'])) {
$cat_string=$_GET['category-images'];
}
//change string to array
$cat_array=explode(",", $cat_string);
$files=$cat_array;
$zipname = $zip_root.'images.zip';
$zip = new ZipArchive;
if ($zip->open($zipname, ZIPARCHIVE::CREATE) != TRUE) {
die("Could not open archive");
}
foreach ($files as $file) {
if(!strstr($file_root.$file,'.php')) $zip->addFile($file_root.$file);
}
$zip->close();
if ($zipname) {
header('Content-Type: application/zip');
header('Content-disposition: attachment; filename='.$zipname);
header('Content-Length: ' . filesize($zipname));
readfile($zipname);
exit();
}
?>
check the return value of $zip->close(), it returns false on error.
check the return value of $zip->addFile(), it returns false on error.
ensure that you use only file name for headers and full name for readfile.
check if the file is created. Replace
if ($zipname) {
with
if (is_readable($zipname)) {
don't put ?> and the end of the php 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.
I have a txt file showing copyright info and address to be zipped together with my images. I use php to do that. All works fine but when opening the ReadMe.txt after downloading the zip, all linebreaks are gone. How to keep the line breaks? The code I use:
$date = date("y-m-d");
$zip = new ZipArchive;
$download = 'pics-' . $date . '.zip';
$zip->open($download, ZipArchive::CREATE);
foreach (glob("photos/*.jpg") as $file) { /* Add appropriate path to read content of zip */
$new_filename = substr($file,strrpos($file,'/') + 1);
$zip->addFile($file,$new_filename);
//$zip->addFile($file);
}
$zip->addFile('/info/readme.txt', 'ReadMe.txt');
$zip->close();
header('Content-Type: application/zip');
header("Content-Disposition: attachment; filename = $download");
header('Content-Length: ' . filesize($download));
header("Location: $download");
Try out the following
foreach (glob("photos/*.jpg") as $file) { /* Add appropriate path to read content of zip */
$new_filename = substr($file,strrpos($file,'/') + 1);
$file=$new_filename."<br />"
$zip->addFile($file);
}
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..