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范例

Example #1 创建一个 Zip 归档


<?php

$zip = new ZipArchive();
$filename = "./test112.zip";

if ($zip->open($filename, ZIPARCHIVE::CREATE)!==TRUE) {
    exit("cannot open <$filename>\n");
}

$zip->addFromString("testfilephp.txt" . time(), "#1 This is a test string added as testfilephp.txt.\n");
$zip->addFromString("testfilephp2.txt" . time(), "#2 This is a test string added as testfilephp2.txt.\n");
$zip->addFile($thisdir . "/too.php","/testfromfile.php");
echo "numfiles: " . $zip->numFiles . "\n";
echo "status:" . $zip->status . "\n";
$zip->close();
?>

Example #2 输出文档细节和列表


<?php
$za = new ZipArchive();

$za->open('test_with_comment.zip');
print_r($za);
var_dump($za);
echo "numFiles: " . $za->numFiles . "\n";
echo "status: " . $za->status  . "\n";
echo "statusSys: " . $za->statusSys . "\n";
echo "filename: " . $za->filename . "\n";
echo "comment: " . $za->comment . "\n";

for ($i=0; $i<$za->numFiles;$i++) {
    echo "index: $i\n";
    print_r($za->statIndex($i));
}
echo "numFile:" . $za->numFiles . "\n";
?>

Example #3 Zip 流封装，读取一个 OpenOffice 文件的元信息


<?php
$reader = new XMLReader();

$reader->open('zip://' . dirname(__FILE__) . '/test.odt#meta.xml');
$odt_meta = array();
while ($reader->read()) {
    if ($reader->nodeType == XMLREADER::ELEMENT) {
        $elm = $reader->name;
    } else {
        if ($reader->nodeType == XMLREADER::END_ELEMENT && $reader->name == 'office:meta') {
            break;
        }
        if (!trim($reader->value)) {
            continue;
        }
        $odt_meta[$elm] = $reader->value;
    }
}
print_r($odt_meta);
?>

此例使用了旧的 API（PHP 4），它打开了一个 ZIP 文件归档，读取归档里的每个文件，并输出文件内容。此例用到的 test2.zip 文档是 ZZIPlib 源分布里测试文档中的一个。

Example #4 Zip 使用范例


<?php

$zip = zip_open("/tmp/test2.zip");

if ($zip) {
    while ($zip_entry = zip_read($zip)) {
        echo "Name:               " . zip_entry_name($zip_entry) . "\n";
        echo "Actual Filesize:    " . zip_entry_filesize($zip_entry) . "\n";
        echo "Compressed Size:    " . zip_entry_compressedsize($zip_entry) . "\n";
        echo "Compression Method: " . zip_entry_compressionmethod($zip_entry) . "\n";

        if (zip_entry_open($zip, $zip_entry, "r")) {
            echo "File Contents:\n";
            $buf = zip_entry_read($zip_entry, zip_entry_filesize($zip_entry));
            echo "$buf\n";

            zip_entry_close($zip_entry);
        }
        echo "\n";

    }

    zip_close($zip);

}
?>

User Contributed Notes

webmaster @ anonymous 27-Jun-2013 04:38


you can use this code for reading JAR files (java archives)



JAR files use the same ZIP format, so can be easily read



$zf = zip_open(realpath('D:/lucene/allinone/lucene-core.jar')); $i=1;

while($zf && $ze = zip_read($zf)) {

    $zi[$i]['zip entry name']= zip_entry_name($ze);

    $zi[$i]['zip entry filesize']= zip_entry_filesize($ze);

    $zi[$i]['zip entry compressed size']= zip_entry_compressedsize($ze);

    $zi[$i]['zip entry compression method']= zip_entry_compressionmethod($ze);

    $zi[$i]['zip entry open status'] = zip_entry_open($zf,$ze);

    //$zi[$i]['zip entry file contents'] = zip_entry_read($ze,100);

    $i++;

}

print_r($zi);

zip_close($zf);

Jonathan 19-Jan-2010 10:29


If you find your zip file not being created make sure every file you are adding to the zip is valid.  If even one file is not available when zip->close is called then the archive will fail and your zip file won't be created.

Stefano Di Paolo 04-Oct-2008 07:13


1) If you want to add files to a ZIP archive but you don't know if the ZiP file exists or not, you MUST check: this changes the way you open it !.

2) you can not append multiple flags, can use only one (or none).



If the zip does not exists, open it with: 

$ziph->open($archiveFile, ZIPARCHIVE::CM_PKWARE_IMPLODE)

(or a different compression method)



If the zip already exists, open it with:

$ziph->open($archiveFile)

or

$ziph->open($archiveFile, ZIPARCHIVE::CHECKCONS)



Example: make backup files every hour and ZIP them all in a daily ZIP archive, so you want to get only one ZIP per day, each ZIP containing 24 files:

<?php

  function archivebackup($archiveFile, $file, &$errMsg)

  {

    $ziph = new ZipArchive();

    if(file_exists($archiveFile))

    {

      if($ziph->open($archiveFile, ZIPARCHIVE::CHECKCONS) !== TRUE)

      {

        $errMsg = "Unable to Open $archiveFile";

        return 1;

      }

    }

    else

    {

      if($ziph->open($archiveFile, ZIPARCHIVE::CM_PKWARE_IMPLODE) !== TRUE)

      {

        $errMsg = "Could not Create $archiveFile";

        return 1;

      }

    }

    if(!$ziph->addFile($file))

    {

      $errMsg = "error archiving $file in $archiveFile";

      return 2;

    }

    $ziph->close();

    

    return 0;

  }

?>

info at peterhofer dot ch 13-Sep-2008 09:03


All these examples will not work if the php script has no write access within the folder. 



Although you may say this is obvious, I found that in this case, $zip->open("name", ZIPARCHIVE::CREATE) doesn't return an error as it might not try to access the file system but rather allocates memory. 



It is only $zip->close() that returns the error. This might cause you seeking at the wrong end.

geandjay at gmail dot com 17-Apr-2008 09:25


<?php


        $zip = new ZipArchive;


    $zip->open('teste.zip');


    $zip->extractTo('./');


    $zip->close();


        echo "Ok!";


?>

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