My gallery script provides me with the option to upload a bunch of images through a zip file. When I try to do this I receive the error line: Fatal error: Call to undefined function: zip_open() in ..
Heres an extract of the phpinfo:
ZLib Support: enabled Compiled Version: 1.1.4 Linked Version: 1.1.4
zlib.output_compression: Off zlib.output_compression_level: -1 zlib.output_handler: no value
Zlib is enabled .. so why do I receive that error message? Thank you for helping me.
Very simple code to extract a zip file.
$zip = new ZipArchive;
$zip->open('myfile.zip');
$zip->extractTo('./');
$zip->close();
Zip support in PHP is not enabled by default. You need to use the ZZIPlib library and the --with-zip=[DIR] option when compiling php.
http://www.php.net/manual/en/ref.zip.php
If you can't install ZZIPLib, you could use a zip class alternative. Just an example (not written by me):
<?php
class zipfile
{
/*
zipfile class, for reading or writing .zip files
See http://www.gamingg.net for more of my work
Based on tutorial given by John Coggeshall at http://www.zend.com/zend/spotlight/creating-zip-files3.php
Copyright (C) Joshua Townsend and licensed under the GPL
Version 1.0
*/
var $datasec = array(); // array to store compressed data
var $files = array(); // array of uncompressed files
var $dirs = array(); // array of directories that have been created already
var $ctrl_dir = array(); // central directory
var $eof_ctrl_dir = "\x50\x4b\x05\x06\x00\x00\x00\x00"; //end of Central directory record
var $old_offset = 0;
var $basedir = ".";
function read_zip($name)
{
// Clear current file
$this->datasec = array();
// File information
$this->name = $name;
$this->mtime = filemtime($name);
$this->size = filesize($name);
// Read file
$fh = fopen($name, "rb");
$filedata = fread($fh, $this->size);
fclose($fh);
// Break into sections
$filesecta = explode("\x50\x4b\x05\x06", $filedata);
// ZIP Comment
$unpackeda = unpack('x16/v1length', $filesecta[1]);
$this->comment = substr($filesecta[1], 18, $unpackeda['length']);
$this->comment = str_replace(array("\r\n", "\r"), "\n", $this->comment); // CR + LF and CR -> LF
// Cut entries from the central directory
$filesecta = explode("\x50\x4b\x01\x02", $filedata);
$filesecta = explode("\x50\x4b\x03\x04", $filesecta[0]);
array_shift($filesecta); // Removes empty entry/signature
foreach($filesecta as $filedata)
{
// CRC:crc, FD:file date, FT: file time, CM: compression method, GPF: general purpose flag, VN: version needed, CS: compressed size, UCS: uncompressed size, FNL: filename length
$entrya = array();
$entrya['error'] = "";
$unpackeda = unpack("v1version/v1general_purpose/v1compress_method/v1file_time/v1file_date/V1crc/V1size_compressed/V1size_uncompressed/v1filename_length", $filedata);
// Check for encryption
$isencrypted = (($unpackeda['general_purpose'] & 0x0001) ? true : false);
// Check for value block after compressed data
if($unpackeda['general_purpose'] & 0x0008)
{
$unpackeda2 = unpack("V1crc/V1size_compressed/V1size_uncompressed", substr($filedata, -12));
$unpackeda['crc'] = $unpackeda2['crc'];
$unpackeda['size_compressed'] = $unpackeda2['size_uncompressed'];
$unpackeda['size_uncompressed'] = $unpackeda2['size_uncompressed'];
unset($unpackeda2);
}
$entrya['name'] = substr($filedata, 26, $unpackeda['filename_length']);
if(substr($entrya['name'], -1) == "/") // skip directories
{
continue;
}
$entrya['dir'] = dirname($entrya['name']);
$entrya['dir'] = ($entrya['dir'] == "." ? "" : $entrya['dir']);
$entrya['name'] = basename($entrya['name']);
$filedata = substr($filedata, 26 + $unpackeda['filename_length']);
if(strlen($filedata) != $unpackeda['size_compressed'])
{
$entrya['error'] = "Compressed size is not equal to the value given in header.";
}
if($isencrypted)
{
$entrya['error'] = "Encryption is not supported.";
}
else
{
switch($unpackeda['compress_method'])
{
case 0: // Stored
// Not compressed, continue
break;
case 8: // Deflated
$filedata = gzinflate($filedata);
break;
case 12: // BZIP2
if(!extension_loaded("bz2"))
{
@dl((strtolower(substr(PHP_OS, 0, 3)) == "win") ? "php_bz2.dll" : "bz2.so");
}
if(extension_loaded("bz2"))
{
$filedata = bzdecompress($filedata);
}
else
{
$entrya['error'] = "Required BZIP2 Extension not available.";
}
break;
default:
$entrya['error'] = "Compression method ({$unpackeda['compress_method']}) not supported.";
}
if(!$entrya['error'])
{
if($filedata === false)
{
$entrya['error'] = "Decompression failed.";
}
elseif(strlen($filedata) != $unpackeda['size_uncompressed'])
{
$entrya['error'] = "File size is not equal to the value given in header.";
}
elseif(crc32($filedata) != $unpackeda['crc'])
{
$entrya['error'] = "CRC32 checksum is not equal to the value given in header.";
}
}
$entrya['filemtime'] = mktime(($unpackeda['file_time'] & 0xf800) >> 11,($unpackeda['file_time'] & 0x07e0) >> 5, ($unpackeda['file_time'] & 0x001f) << 1, ($unpackeda['file_date'] & 0x01e0) >> 5, ($unpackeda['file_date'] & 0x001f), (($unpackeda['file_date'] & 0xfe00) >> 9) + 1980);
$entrya['data'] = $filedata;
}
$this->files[] = $entrya;
}
return $this->files;
}
}
?>
And use it like:
<?php
include 'class.zip.php';
$file = 'file.zip';
$zip = new zipfile();
$content = array();
foreach ($zip->read_zip($file) AS $filedata)
{
$content[] = end(explode('.', $filedata['name']));
}
echo implode(', ', $content);
?>
I Use this code to extract files of a zip archive.
$zip = new ZipArchive;
if($zip->open($zipname))
{
for($i=0; $i<$zip->numFiles; $i++)
{
echo 'Filename: '.$zip->getNameIndex($i).'<br />';
}
if($zip->extractTo(dirname(__FILE__).'/extracted/')){ echo '<p>FILE EXTRACTED</p>'; }else{ echo '<p>ERROR IN FILE ECTRACTING!</p>'; }
$zip->close();
}
else
{
echo 'Error reading zip-archive!';
}
