I want to unzip a file and this works fine
system('unzip File.zip');
But I need to pass in the file name through the URL and can not get it to work, this is what I have.
$master = $_GET["master"];
system('unzip $master.zip');
What am I missing? I know it has to be something small and stupid I am overlooking.
Thank you,
I can only assume your code came from a tutorial somewhere online? In that case, good job trying to figure it out by yourself. On the other hand, the fact that this code could actually be published online somewhere as the correct way to unzip a file is a bit frightening.
PHP has built-in extensions for dealing with compressed files. There should be no need to use system calls for this. ZipArchivedocs is one option.
$zip = new ZipArchive;
$res = $zip->open('file.zip');
if ($res === TRUE) {
$zip->extractTo('/myzips/extract_path/');
$zip->close();
echo 'woot!';
} else {
echo 'doh!';
}
Also, as others have commented, $HTTP_GET_VARS has been deprecated since version 4.1 ... which was a reeeeeally long time ago. Don't use it. Use the $_GET superglobal instead.
Finally, be very careful about accepting whatever input is passed to a script via a $_GET variable.
UPDATE
As per your comment, the best way to extract the zip file into the same directory in which it resides is to determine the hard path to the file and extract it specifically to that location. So, you could do:
// assuming file.zip is in the same directory as the executing script.
$file = 'file.zip';
// get the absolute path to $file
$path = pathinfo(realpath($file), PATHINFO_DIRNAME);
$zip = new ZipArchive;
$res = $zip->open($file);
if ($res === TRUE) {
// extract it to the path we determined above
$zip->extractTo($path);
$zip->close();
echo "WOOT! $file extracted to $path";
} else {
echo "Doh! I couldn't open $file";
}
$zip->extractTo('./'); However, this is likely not the case. A better option is to determine the zip file's location in the filesystem and extract it there. I'll update my answer to demonstrate. –
Allyson Fatal error: Class 'ZipArchive' not found error which I try this script :-( Is there any option at that point? –
Lyckman zlib library to perform pretty much any compress/decompress operations with PHP. Even to make system calls you'd need to have the underlying library. This is a very ubiquitous thing though, and not having it is the exception. If you're on shared hosting, they should install it for you. Otherwise, just google something like "How to Install Zip Functions Support For PHP" –
Allyson Please, don't do it like that (passing GET var to be a part of a system call). Use ZipArchive instead.
So, your code should look like:
$zipArchive = new ZipArchive();
$result = $zipArchive->open($_GET["master"]);
if ($result === TRUE) {
$zipArchive ->extractTo("my_dir");
$zipArchive ->close();
// Do something else on success
} else {
// Do something on error
}
And to answer your question, your error is 'something $var something else' should be "something $var something else" (in double quotes).
Using getcwd() to extract in the same directory
<?php
$unzip = new ZipArchive;
$out = $unzip->open('wordpress.zip');
if ($out === TRUE) {
$unzip->extractTo(getcwd());
$unzip->close();
echo 'File unzipped';
} else {
echo 'Error';
}
?>
I updated answer of @rdlowrey to a cleaner and better code, This will unzip a file into current directory using __DIR__.
<?php
// config
// -------------------------------
// only file name + .zip
$zip_filename = "YOURFILENAME.zip";
?>
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' >
<title>Unzip</title>
<style>
body{
font-family: arial, sans-serif;
word-wrap: break-word;
}
.wrapper{
padding:20px;
line-height: 1.5;
font-size: 1rem;
}
span{
font-family: 'Consolas', 'courier new', monospace;
background: #eee;
padding:2px;
}
</style>
</head>
<body>
<div class="wrapper">
<?php
echo "Unzipping <span>" .__DIR__. "/" .$zip_filename. "</span> to <span>" .__DIR__. "</span><br>";
echo "current dir: <span>" . __DIR__ . "</span><br>";
$zip = new ZipArchive;
$res = $zip->open(__DIR__ . '/' .$zip_filename);
if ($res === TRUE) {
$zip->extractTo(__DIR__);
$zip->close();
echo '<p style="color:#00C324;">Extract was successful! Enjoy ;)</p><br>';
} else {
echo '<p style="color:red;">Zip file not found!</p><br>';
}
?>
End Script.
</div>
</body>
</html>
Simply try this yourDestinationDir is the destination to extract to or remove -d yourDestinationDir to extract to root dir.
$master = 'someDir/zipFileName';
$data = system('unzip -d yourDestinationDir '.$master.'.zip');
yourDestinationDir as session_save_path() . DIRECTORY_SEPARATOR . "$name" . DIRECTORY_SEPARATOR where $name is target folder to unzip in session folder. –
Infidel PHP has its own inbuilt class that can be used to unzip or extracts contents from a zip file. The class is ZipArchive. Below is the simple and basic PHP code that will extract a zip file and place it in a specific directory:
<?php
$zip_obj = new ZipArchive;
$zip_obj->open('dummy.zip');
$zip_obj->extractTo('directory_name/sub_dir');
?>
If you want some advance features then below is the improved code that will check if the zip file exists or not:
<?php
$zip_obj = new ZipArchive;
if ($zip_obj->open('dummy.zip') === TRUE) {
$zip_obj->extractTo('directory/sub_dir');
echo "Zip exists and successfully extracted";
}
else {
echo "This zip file does not exists";
}
?>
Simple PHP function to unzip. Please make sure you have zip extension installed on your server.
/**
* Unzip
* @param string $zip_file_path Eg - /tmp/my.zip
* @param string $extract_path Eg - /tmp/new_dir_name
* @return boolean
*/
function unzip(string $zip_file_path, string $extract_dir_path) {
$zip = new \ZipArchive;
$res = $zip->open($zip_file_path);
if ($res === TRUE) {
$zip->extractTo($extract_dir_path);
$zip->close();
return TRUE;
} else {
return FALSE;
}
}
Just change
system('unzip $master.zip');
To this one
system('unzip ' . $master . '.zip');
or this one
system("unzip {$master}.zip");
I updated answer of Morteza Ziaeemehr to a cleaner and better code, This will unzip a file provided within form into current directory using DIR.
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' >
<title>Unzip</title>
<style>
body{
font-family: arial, sans-serif;
word-wrap: break-word;
}
.wrapper{
padding:20px;
line-height: 1.5;
font-size: 1rem;
}
span{
font-family: 'Consolas', 'courier new', monospace;
background: #eee;
padding:2px;
}
</style>
</head>
<body>
<div class="wrapper">
<?php
if(isset($_GET['page']))
{
$type = $_GET['page'];
global $con;
switch($type)
{
case 'unzip':
{
$zip_filename =$_POST['filename'];
echo "Unzipping <span>" .__DIR__. "/" .$zip_filename. "</span> to <span>" .__DIR__. "</span><br>";
echo "current dir: <span>" . __DIR__ . "</span><br>";
$zip = new ZipArchive;
$res = $zip->open(__DIR__ . '/' .$zip_filename);
if ($res === TRUE)
{
$zip->extractTo(__DIR__);
$zip->close();
echo '<p style="color:#00C324;">Extract was successful! Enjoy ;)</p><br>';
}
else
{
echo '<p style="color:red;">Zip file not found!</p><br>';
}
break;
}
}
}
?>
End Script.
</div>
<form name="unzip" id="unzip" role="form">
<div class="body bg-gray">
<div class="form-group">
<input type="text" name="filename" class="form-control" placeholder="File Name (with extension)"/>
</div>
</div>
</form>
<script type="application/javascript">
$("#unzip").submit(function(event) {
event.preventDefault();
var url = "function.php?page=unzip"; // the script where you handle the form input.
$.ajax({
type: "POST",
url: url,
dataType:"json",
data: $("#unzip").serialize(), // serializes the form's elements.
success: function(data)
{
alert(data.msg); // show response from the php script.
document.getElementById("unzip").reset();
}
});
return false; // avoid to execute the actual submit of the form
});
</script>
</body>
</html>
you can use prepacked function
function unzip_file($file, $destination){
// create object
$zip = new ZipArchive() ;
// open archive
if ($zip->open($file) !== TRUE) {
return false;
}
// extract contents to destination directory
$zip->extractTo($destination);
// close archive
$zip->close();
return true;
}
How to use it.
if(unzip_file($file["name"],'uploads/')){
echo 'zip archive extracted successfully';
}else{
echo 'zip archive extraction failed';
}
Use below PHP code, with file name in the URL param "name"
<?php
$fileName = $_GET['name'];
if (isset($fileName)) {
$zip = new ZipArchive;
$res = $zip->open($fileName);
if ($res === TRUE) {
$zip->extractTo('./');
$zip->close();
echo 'Extracted file "'.$fileName.'"';
} else {
echo 'Cannot find the file name "'.$fileName.'" (the file name should include extension (.zip, ...))';
}
}
else {
echo 'Please set file name in the "name" param';
}
?>
Just use this:
$master = $_GET["master"];
system('unzip' $master.'.zip');
in your code $master is passed as a string, system will be looking for a file called $master.zip
$master = $_GET["master"];
system('unzip $master.zip'); `enter code here`
'unzip' $master wouldn't work unless you added a space after unzip and added a period after the single quote. Would have been just much easier to suggest system("unzip $master.zip") with double quotes, or at least a valid answer. –
Ymir $_GET query string and inject their own code to the system call –
Prelacy © 2022 - 2024 — McMap. All rights reserved.
system("unzip $master.zip");should work. – Pleurodynia