I have a gzip file. Into this file I have many csv files. I want to read only one of these files that are contained into the gzip folder. The name of the gzip folder that I want to read is 'com.instore'. And the name of the csv file is 'second'.
I use the gzopen() to read the gzip folder. But now I don't know how to read the csv file contained inside.
So, how can I do this?
Do I have to close with the gzclose()?
The gzip is into a server directory. How can I reach it?
When you gzopen you dont uncompress it. you just creates a file pointer to it.
<?php
// get contents of a gz-file into a string
$filename = "/usr/local/something.txt.gz";
$zd = gzopen($filename, "r");
$contents = gzread($zd, 10000);
gzclose($zd);
?>
while $contents is your csv file as a string.
more info # http://www.php.net/manual/en/function.gzread.php
You can extract the gzip file using this:
How can I extract or uncompress gzip file using php?
and than using this:
How to import csv file in PHP?
populate the database.
Related
I am trying to read contents of zipped file as
$subda=file_get_contents('http://www.yifysubtitles.com/subtitle/thewilbyconspiracy1975dvdripxvid-english-128250.zip');
And trying to upload at my online server as below
$this->load->library('zip');
$data = $subda;
$name = 'myfile.srt';
$this->zip->add_data($name, $data);
$this->zip->archive('assets/subtitles/myzipfile.zip');
But when I check this uploaded file at my server it does not compressed properly.
it does not contain any data.
when I echo $subda it give results like.
Where I am wrong...
through file_get_contents I am already getting contents of zip file.
You cannot do:
$subda=file_get_contents('http://www.yifysubtitles.com/subtitle/thewilbyconspiracy1975dvdripxvid-english-128250.zip');
This will just load the ZIP content into the string rather than uncompressed.
See this on how you can read using a lib in php:
Best way to read zip file in PHP
I want to download different feeds form some publishers. But the poor thing is, that they are first of all zipped as .gz and as second not in the right format. You can download one of the feeds and check it out. They do not have any filespec... So, I'm forced to add the .csv by myself..
My question now is, how can I unzip those files from the different urls?
How I do rename them, I know. But how do I unzip them?
I already searched for it and found this one:
//This input should be from somewhere else, hard-coded in this example
$file_name = '2013-07-16.dump.gz';
// Raising this value may increase performance
$buffer_size = 4096; // read 4kb at a time
$out_file_name = str_replace('.gz', '', $file_name);
// Open our files (in binary mode)
$file = gzopen($file_name, 'rb');
$out_file = fopen($out_file_name, 'wb');
// Keep repeating until the end of the input file
while (!gzeof($file)) {
// Read buffer-size bytes
// Both fwrite and gzread and binary-safe
fwrite($out_file, gzread($file, $buffer_size));
}
// Files are done, close files
fclose($out_file);
gzclose($file);
But with those feeds it doesn't work...
Here a two example files: file one | file two
Do you have an idea? - Would be very grateful!
Greetings!
windows 10 + php7.1.4 it's work.
The following code has the same effect.
ob_start();
readgzfile($file_name);
file_put_contents($output_filename', ob_get_contents());
ob_clean();
Or you can try to use the gzip command to decompress, and then use the it.
Program execution Functions
I am downloading a gzip csv and writing the un-zipped string to a file. Using:
$file = gzopen($this->getTmpZipFileName(), 'rb');
$outPutFile = fopen($uncompressedFileName, 'wb');
while(!gzeof($file)){
fwrite($outPutFile, gzgets($file, $bufferSie));
}
At some point during this process something is breaking with a space " ". It is treating the " " as a new line. Which of course will 'break' the csv.
I believe it is something to do with the uncompressing of the gzip file. If I dump out
var_dump(var_dump(gzread($file,100000)));
die();
I get the same issue.
Uncompressing the csv through terminal the csv file is fine.
I am at a loss of what else I can try to open the file correctly.
Any help will be much appreciated.
It turns out when I was creating the gzip file something was messed up with the compression. Using another file from another source works as expected. This has driven me mad!!
I'm trying to let users upload files onto my website, but unfortunately some of them seem to turn corrupt when reading them. I've tried both images and html files, and all the images come through corrupt (the HTML files come through fine).
To upload the files I'm using a standard HTML form and the PHP $_FILES array. I'm then using the following code to read the contents of the file:
$filename = $_FILES['varname']['tmp_name'];
$handle = fopen($filename, "r");`
$contents = fread($handle, filesize($filename));
fclose($handle);
Unfortunately the value of $contents is now slightly different to the file I uploaded (here's a snippet from the top of the file):
Original file:
ˇÿˇ·ExifII*ˇÏDucky<ˇÓAdobed¿ˇ€Ñ
New file:
ˇÿˇ· Exif II* ˇÏ Ducky < ˇÓ Adobe d¿ ˇ€ Ñ
As you can see there's a difference in the spacing. Any ideas what would be causing this? Am I handling the file read incorrectly for binary files? It seems odd that it's fine for any text files I upload..
Thanks!
I usually output files like this:
header("Content-Disposition: attachment; filename=\"$fileName\"");
readfile("$HOME_DIR/uploads/$fileName");
exit();
Anyway, to try to debug your problem, you should first understand which phase is failing. Upload or download? To check, just go to your webserver and download the file via FTP, then open it in a binary editor. If it is already corrupt then you need to investigate your upload phase, otherwise it's the other way around.
how do you print $contents ? Are you sure this is a problem with reading the file ?
I guess that maybe this is a problem with PRINTING the file to the output... Try printing it binary way. Something like:
$data = unpack("C*", $contents);
foreach ($data as $v)
{
echo $v, ' ';
}
and compare that with binary dump of the original file...
I'm using CodeIgniter and I can't figure out how to unzip files!
PHP itself has a number of functions for dealing with gzip files.
If you want to create a new, uncompressed file, it would be something like this.
Note: This doesn't check if the target file exists first, doesn't delete the input file, or do any error checking. You really should fix those before using this in production code.
// This input should be from somewhere else, hard-coded in this example
$file_name = 'file.txt.gz';
// Raising this value may increase performance
$buffer_size = 4096; // read 4kb at a time
$out_file_name = str_replace('.gz', '', $file_name);
// Open our files (in binary mode)
$file = gzopen($file_name, 'rb');
$out_file = fopen($out_file_name, 'wb');
// Keep repeating until the end of the input file
while(!gzeof($file)) {
// Read buffer-size bytes
// Both fwrite and gzread and binary-safe
fwrite($out_file, gzread($file, $buffer_size));
}
// Files are done, close files
fclose($out_file);
gzclose($file);
Note: This deals with gzip only. It doesn't deal with tar.
gzopen is way too much work. This is more intuitive:
$zipped = file_get_contents("foo.gz");
$unzipped = gzdecode($zipped);
works on http pages when the server is spitting out gzipped data also.
If you have access to system():
system("gunzip file.sql.gz");
Use the functions implemented by the Zlib Compression extension.
This snippet shows how to use some of the functions made available from the extension:
// open file for reading
$zp = gzopen($filename, "r");
// read 3 char
echo gzread($zp, 3);
// output until end of the file and close it.
gzpassthru($zp);
gzclose($zp);
Download the Unzip library
and include or autoload the unzip library
$this->load->library('unzip');