Can't unzip file with php - php

I have a folder in my web server were I put zip files that I need to then unzip. I want to do that with php and this is what I have tried but it does not work:
<?php
$file = $_GET["file"];
$zip = new ZipArchive;
$res = $zip->open($file+'.zip');
$zip->extractTo('./');
$zip->close();
?>
The zip files are in the same folder as the php file, but when I go to the php page it does nothing.
By doing some testing I have found out that the script dies on the $zip = new ZipArchive; line
How can I manage this to work?

<?php
$fileName = $_GET['file']; // get file name in the URL param "file"
if (isset($fileName)) { // if $fileName php variable is set than
$zip = new ZipArchive; // create object
$res = $zip->open($fileName); // open archive
if ($res === TRUE) {
$zip->extractTo('./'); // extract contents to destination directory
$zip->close(); //close the archieve
echo 'Extracted file "'.$fileName.'"';
} else {
echo 'Cannot find the file name "'.$fileName.'" (the file name should include extension (.zip, ...))';
}
}
else {
echo 'Please set file name in the "file" param';
}
?>
Note:- For More Details Please refer https://www.php.net/manual/en/class.ziparchive.php

I have found the problem.
The code is fine, but the hosting service is not, and they do not have the ZIP extension available right now

Try this code. Also change $zip->open($file+".zip"); to $zip->open($file);.
+ (plus sign) is not concatenation operator in php
<?php
// $_GET["file"] is set to `a.zip`
$file = $_GET["file"];
$zip = new ZipArchive;
$res = $zip->open($file);
$zip->extractTo('./');
$zip->close();
?>

Related

how to unzip .zip file in codeigniter 4 (PHP)

I am trying to extract zip file in codeigniter 4... I have the code below
$file_name = session()->get('file_name');
// Zip file name
$filename = "/public/$file_name";
$zip = new \ZipArchive;
$res = $zip->open($filename);
if ($res === true) {
// Unzip path
$path = "/public";
// Extract file
$zip->extractTo($path);
$zip->close();
return 'Site Updated Successfully';
} else {
return "failed to update $filename!";
}
}
but I get this result: return "failed to update $filename!";
Please can someone help me fix the issue with the code.
This has nothing specifically to do with Codeigniter. It's just using PHP and ZipArchive. The code looks OK - be sure the file is really in the /public/ directory and that it is a zip archive. The PHP site has examples that are like $zip = new ZipArchive; (without the \ char); maybe try that.

How to save extracted zip file with specific filename

I have zip files with only one file inside it, but it has new name every time. I need to extract file and save it with specific file name, not extracted one.
$zip = new ZipArchive;
$res = $zip->open($tmp_name);
if ($res === TRUE) {
$path = _PATH."/files/";
$zip->extractTo($path);
$zip->close();
echo 'Unzip!';
}
Abowe code works, but I need to have specific filename. For example anyfile located under zip (eg. pricelist025.xml should be named temp.xml
Rename your specific file before you extract it.
$zip = new ZipArchive;
$res = $zip->open($tmp_name);
if ($res === TRUE) {
$zip->renameName('pricelist025.xml','temp.xml');
$path = _PATH."/files/";
$zip->extractTo($path);
$zip->close();
echo 'Unzip!';
} else {
echo 'failed, code:' . $res;
}
I hope this works.
UPDATE 1
There is two options if you want to change the file names.
1. change the file names before extracting -This way zip files will be modified
2. change the file names after extracting -Zip files will remain as they were before
Changing file names before extracting
We have to define a pattern for filenames. Here, Files will be in this patter : myfile0.xml, myfile1.html, adn so on..
Note: extension will be preserved.
$zip = new ZipArchive;
$res = $zip->open('hello.zip');
$newfilename = 'myfile';
for($i=0;$i<$zip->count();$i++)
{
$extension = pathinfo($zip->getNameIndex($i))['extension'];
$zip->renameName($zip->getNameIndex($i), $newfilename.$i.'.'.$extension);
}
Chaning file names after extracting
File names will in the same pattern as above.
$directory = 'hello/'; //your extracted directory
$newfilename = 'myfile';
foreach (glob($directory."*.*") as $index=>$filename) {
$basename = pathinfo($filename)['basename'];
if(!preg_match('/myfile\d\./', $basename)) {
$extension = pathinfo($filename)['extension'];
rename($filename,$newfilename.$index.'.'.$extension);
}
}
What we are here scanning the all the files from the extracted directory for which doesn't have a filename in the patter myfile[num]. and then we are changing it's name.
UPDATE 2
I just noticed you have updated your question.
As you have just one file and you want to extract it every time with different name. You should rename it every time you extract.
$zip = new ZipArchive;
$newfilename = "myfile".rand(1,999); //you can define any safe pattern here that suites you
if($zip->open('help.zip')===TRUE)
{
$path = '/your/path/to/directory';
$filename = $zip->getNameIndex(0);
if($zip->extractTo($path))
{
echo "Extracted";
}else{
echo "Extraction Failed";
exit();
}
$extension = pathinfo($filename)['extension'];
rename($path."/$filename",$path."/$newfilename".'.'.$extension);
echo "Extracted with different name successfully!";
} else {
echo "Failed";
}

Get ZIP file from generated URL

I have a URL that, when requested, start the download of a .zip file. The URL looks something like this:
http://website.nl/servlets/ogexport?koppeling=WEBSITE&user=&password=&og=BOG&kantoor=**
How can I make sure that the zip file that gets generated in that proces get used in my PHP unzip script?
$file = 'testing.zip';
$path = pathinfo(realpath($file), PATHINFO_DIRNAME).'/xml';
// unzippen
$zip = new ZipArchive;
$res = $zip->open($file);
if ($res === TRUE) {
$zip->extractTo($path);
$zip->close();
echo 'success';
// debug("ZIP bestand uitgepakt", 2);
} else {
// debug("ZIP niet uitgepakt", 2);
echo 'something went wrong.';
}
$xml_path = $path."/testing.xml";
echo $file.'<br>';
echo $xml_path;
Hoping for help!
I would recommend using php curl to download the remote file.Here is an example

How to auto delete a zip file after using stream_get_contents(); to view a file in php?

I have this code to read a file for preview, but the downside is I have to download the file first from cloud and read from it, but it's a waste of space so I want to delete it after viewing a certain file. Is there an automatic way of doing this? Or do I have to integrate it to a close button?
// Get the container we want to use
$container = $conn->get_container('mailtemplate');
//$filename = 'template1.zip';
// upload file to Rackspace
$object = $container->get_object($filename);
//var_dump($object);
//echo '<pre>' . print_r($object,true) . '</pre>';
$localfile = $dir.$filename;
//echo $localfile;
$object->save_to_filename($localfile);
if($_GET['preview'] == "true")
{
$dir = "../mailtemplates/";
$file1 = $_GET['tfilename'];
$file = $dir.$file1;
$file2 = "index.html";
$info = pathinfo($file);
$file_name = basename($file,'.'.$info['extension']);
$path = $file_name.'/'.$file2;
$zip = new ZipArchive();
$zip->open($file);
$fp = $zip->getStream($path);
if(!$fp)
{
exit("faileds\n");
$zip->close();
unlink($dir.$filename);
}
else
{
$stuff = stream_get_contents($fp);
echo $stuff;
$zip->close();
if($stuff != null)
{
unlink($dir.$filename);
}
}
}
else
{
unlink($dir.$filename);
}
You didn't google this did ya?
Try Unlink
Edit:
Taking a look at this code, $zip->open($file); <-- is where you open the file. The file variable is set by:
"../mailtemplates/" . basename($_GET['tfilename'], '.' . $info['extension']) . '/' . "index.html"
So you're grabbing a relative directory and grabbing a filename as a folder, and going to that folder /index.html. Here's an example:
if you're in c:\ testing and you go to ../mailtemplates/ you'll be in c:\mailtemplates and then you're looking at file test.php but you're removing the file extension, so you'll be opening the location c:\mailtemplates\test\index.html so you open up that html file and read it. Then, you're trying to delete c:\mailtemplates\test.php
can you explain how any of that makes sense to you? 'cause that seems very odd to me.

Using PHP Post to unzip a zipped file archive

For some reason I can't seem to get the following code to work. I have a form which accesses it, and I've passed a .zip file through it but still no luck? Any clues?
<?php
$file = $_POST['zipped_file'];
$zip = new ZipArchive();
if ($zip->open($file) !== TRUE) {
die ('Could not open archive');
}
$zip->extractTo('../img/media');
$zip->close();
echo 'Archive extracted to directory';
?>

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