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(PHP 5 >= 5.2.0, PECL zip >= 1.1.0)
ZipArchive::open — Öffnet ein ZIP-Dateiarchiv
Öffnet ein neues ZIP-Archiv für Lese-, Schreib- und Veränderungszugriffe.
Der Name des zu öffnenden ZIP-Archivs.
Der Modus, in dem das zu öffnende Archiv verwendet werden soll.
ZIPARCHIVE::OVERWRITE
ZIPARCHIVE::CREATE
ZIPARCHIVE::EXCL
ZIPARCHIVE::CHECKCONS
Gibt TRUE oder den Fehlercode zurück.
ZIPARCHIVE::ER_EXISTS
ZIPARCHIVE::ER_INCONS
ZIPARCHIVE::ER_INVAL
ZIPARCHIVE::ER_MEMORY
ZIPARCHIVE::ER_NOENT
ZIPARCHIVE::ER_NOZIP
ZIPARCHIVE::ER_OPEN
ZIPARCHIVE::ER_READ
ZIPARCHIVE::ER_SEEK
Dieses Beispiel öffnet ein ZIP-Dateiarchiv, liest jede Datei im Archiv ein und gibt ihren Inhalt aus. Das test2.zip-Archiv, das in diesem Beispiel verwendet wird, ist eins der Testarchive der ZZIPlib-Quelldistribution.
Beispiel #1 Öffnen und extrahieren
<?php
$zip = new ZipArchive;
$res = $zip->open('test.zip');
if ($res === TRUE) {
echo 'ok';
$zip->extractTo('test');
$zip->close();
} else {
echo 'Fehler, Code:' . $res;
}
?>
Beispiel #2 Ein Archiv erstellen
<?php
$zip = new ZipArchive;
$res = $zip->open('test.zip', ZipArchive::CREATE);
if ($res === TRUE) {
$zip->addFromString('test.txt', 'Der Dateiinhalt kommt hier');
$zip->addFile('data.txt', 'eintragsname.txt');
$zip->close();
echo 'ok';
} else {
echo 'Fehler';
}
?>
Further to what rickky at gmail dot com was saying, I've had that problem while trying to cache zip files and found that I had to set the permissions of the containing folder to 777 to get it to work.
Because this is a potential security weakness if on a public viewable folder, I'd recommend moving the folder so that it is no longer within public_html. You can then use readfile() to output the archive to the browser, with some HTTP headers to tell the browser it is a zip file.
to anyone getting an error ZIPARCHIVE::ER_READ = 5, when
doing $zip->open($zipfile) with a ZIP file containing a total of more then (around) 800 files (even when they are in sub-directories).
possibly related bugs 40873, 8714:
1. it was not an OS limit, because it worked when called from windows via samba on the same file at the same place
2. it wasn't working under 32bit linux
with php 5.3.0 the issue seems to be resolved.
With php 5.2.6, the following code created a new zip or replaced a existing zip.
Note that I am only using the ZIPARCHIVE::OVERWRITE flag.
<?php
$zip = new ZipArchive();
$opened = $zip->open( $zipFileName, ZIPARCHIVE::OVERWRITE );
if( $opened !== true ){
die("cannot open {$zipFileName} for writing.");
}
$zip->addFromString( $name, $contents );
$zip->close();
?>
Now, with php 5.2.8, it does not work and gives this warning:
Warning: ZipArchive::addFromString() [ziparchive.addfromstring]: Invalid or unitialized Zip object in [myfile] on line [myline]
To fix this, you must specify the flags as create or overwrite.
<?php
$zip = new ZipArchive();
$opened = $zip->open( $zipFileName, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE );
if( $opened !== true ){
die("cannot open {$zipFileName} for writing.");
}
$zip->addFromString( $name, $contents );
$zip->close();
?>
When googling for the error message I found a lot of people that had it but couldn't figure out why they were getting it.
I hope this helps someone.
if you are echoing out the output and confused about the number...maybe this will help. i'm not totally sure it is accurate though.
ZIPARCHIVE::ER_EXISTS - 10
ZIPARCHIVE::ER_INCONS - 21
ZIPARCHIVE::ER_INVAL - 18
ZIPARCHIVE::ER_MEMORY - 14
ZIPARCHIVE::ER_NOENT - 9
ZIPARCHIVE::ER_NOZIP - 19
ZIPARCHIVE::ER_OPEN - 11
ZIPARCHIVE::ER_READ - 5
ZIPARCHIVE::ER_SEEK - 4
<?php
/*
Hi!
I made a little script about checking content and "secure repacking"
*/
$somefile = "zip.zip";
$someurl = "/some/url"
$zip = new ZipArchive;
$open = $zip->open($somefile, ZIPARCHIVE::CHECKCONS);
// If the archive is broken(or just another file renamed to *.zip) the function will return error on httpd under windows, so it's good to check if the archive is ok with ZIPARCHIVE::CHECKCONS
if ($open === TRUE) {
if(!$zip->extractTo($someurl)) {
die ("Error during extracting");
}
$zip->close();
}
$new_archive_name = "new.zip";
$new_zip = new ZipArchive;
$new_open = $new_zip->open($new_archive_name, ZIPARCHIVE::CREATE);
if ($new_open === TRUE) {
$dir = opendir($someurl);
while ($file = readdir($dir)) {
if ($file == "." || $file == "..") { } else {
//We do not wanna this files in the new zip archive
if (!$new_zip->addFile($file)) {
print $file."was not added!<br />";
}
}
}
}
$new_zip->close();
?>
The file name does not need to end in '.zip' if it is created using tempnam(). You just need to overwrite the file instead of trying to read it:
<?php
$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);
$zip->close();
// Stream the file to the client
header("Content-Type: application/zip");
header("Content-Length: " . filesize($file));
header("Content-Disposition: attachment; filename=\"a_zip_file.zip\"");
readfile($file);
unlink($file);
?>
If you try this to open a file with creation in mind (= empty zip to fill with other files), this may not work :
$res = $zip->open($zip_file, ZipArchive::CREATE);
// you may get false
Try this instead, it should work :
$res = $zip->open($zip_file, ZIPARCHIVE::OVERWRITE);
It seems the filename has to end in '.zip', so this suffix must be added when using tempnam() to create a random temporary file name.
If the directory you are writing or saving into does not have the correct permissions set, you won't get any error messages and it will look like everything worked fine... except it won't have changed!
Instead make sure you collect the return value of ZipArchive::close(). If it is false... it didn't work.
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