PHP compression and archiving-Zip

PHP extension compression and archive extension 3-Zip this extension allows you to read and write ZIP compressed documents and their files transparently.

To use these functions after PHP5.2, you must use the -- enable-zip configuration option to provide zip support during PHP compilation.

Example #1 create a Zip archive

 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 output document details and list

 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 stream encapsulation, read the metadata of an OpenOffice file

 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);?>

In this example, the old API (PHP 4) is used to open a ZIP file archive, read each file in the archive, and output the file content. The test2.zip document used in this example is one of the test documents in ZZIPlib source distribution.

Example #4 Example of Zip

ZipArchive class

ZipArchive: addEmptyDir-Add a new directory

ZipArchive: addFile-Adds a file to a ZIP archive from the given path

ZipArchive: addFromString-Add a file to a ZIP archive using its contents

ZipArchive: addGlob-Add files from a directory by glob pattern

ZipArchive: addPattern-Add files from a directory by PCRE pattern

ZipArchive: close-Close the active archive (opened or newly created)

ZipArchive: deleteIndex-delete an entry in the archive using its index

ZipArchive: deleteName-delete an entry in the archive using its name

ZipArchive: extracemedi-extract the archive contents

ZipArchive: getArchiveComment-Returns the Zip archive comment

ZipArchive: getCommentIndex-Returns the comment of an entry using the entry index

ZipArchive: getCommentName-Returns the comment of an entry using the entry name

ZipArchive: getFromIndex-Returns the entry contents using its index

ZipArchive: getFromName-Returns the entry contents using its name

ZipArchive: getNameIndex-Returns the name of an entry using its index

ZipArchive: getStatusString-Returns the status error message, system and/or zip messages

ZipArchive: getStream-Get a file handler to the entry defined by its name (read only ).

ZipArchive: locateName-Returns the index of the entry in the archive

ZipArchive: open-Open a ZIP file archive

ZipArchive: renameIndex-Renames an entry defined by its index

ZipArchive: renameName-Renames an entry defined by its name

ZipArchive: setArchiveComment-Set the comment of a ZIP archive

ZipArchive: setCommentIndex-Set the comment of an entry defined by its index

ZipArchive: setCommentName-Set the comment of an entry defined by its name

ZipArchive: statIndex-Get the details of an entry defined by its index.

ZipArchive: statName-Get the details of an entry defined by its name.

ZipArchive: unchangeAll-Undo all changes done in the archive

ZipArchive: unchangeArchive-Revert all global changes done in the archive.

ZipArchive: unchangeIndex-Revert all changes done to an entry at the given index

ZipArchive: unchangeName-Revert all changes done to an entry with the given name.

Related functions

Zip_close-Close a ZIP file archive

Zip_entry_close-Close a directory entry

Zip_entry_compressedsize-Retrieve the compressed size of a directory entry

Zip_entry_compressionmethod-Retrieve the compression method of a directory entry

Zip_entry_filesize-Retrieve the actual file size of a directory entry

Zip_entry_name-Retrieve the name of a directory entry

Zip_entry_open-Open a directory entry for reading

Zip_entry_read-Read from an open directory entry

Zip_open-Open a ZIP file archive

Zip_read-Read next entry in a ZIP file archive