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Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

ZipArchive uses class constants. There are three types of constants : Flags (prefixed with FL_), errors (prefixed with ER_) and mode (no prefix).

ZipArchive::CREATE (integer)

Create the archive if it does not exist.

ZipArchive::OVERWRITE (integer)

If archive exists, ignore its current contents. In other words, handle it the same way as an empty archive.

ZipArchive::EXCL (integer)

Error if archive already exists.

ZipArchive::CHECKCONS (integer)

Perform additional consistency checks on the archive, and error if they fail.

ZipArchive::FL_NOCASE (integer)

Ignore case on name lookup

ZipArchive::FL_NODIR (integer)

Ignore directory component

ZipArchive::FL_COMPRESSED (integer)

Read compressed data

ZipArchive::FL_UNCHANGED (integer)

Use original data, ignoring changes.

ZipArchive::FL_ENC_GUESS (integer)

Guess string encoding (is default). Available as of PHP 7.0.8.

ZipArchive::FL_ENC_RAW (integer)

Get unmodified string. Available as of PHP 7.0.8.

ZipArchive::FL_ENC_STRICT (integer)

Follow specification strictly. Available as of PHP 7.0.8.

ZipArchive::FL_ENC_UTF_8 (integer)

String is UTF-8 encoded. Available as of PHP 7.0.8.

ZipArchive::FL_ENC_CP437 (integer)

String is CP437 encoded. Available as of PHP 7.0.8.

ZipArchive::CM_DEFAULT (integer)

better of deflate or store.

ZipArchive::CM_STORE (integer)

stored (uncompressed).

ZipArchive::CM_SHRINK (integer)

shrunk

ZipArchive::CM_REDUCE_1 (integer)

reduced with factor 1

ZipArchive::CM_REDUCE_2 (integer)

reduced with factor 2

ZipArchive::CM_REDUCE_3 (integer)

reduced with factor 3

ZipArchive::CM_REDUCE_4 (integer)

reduced with factor 4

ZipArchive::CM_IMPLODE (integer)

imploded

ZipArchive::CM_DEFLATE (integer)

deflated

ZipArchive::CM_DEFLATE64 (integer)

deflate64

ZipArchive::CM_PKWARE_IMPLODE (integer)

PKWARE imploding

ZipArchive::CM_BZIP2 (integer)

BZIP2 algorithm

ZipArchive::ER_OK (integer)

No error.

ZipArchive::ER_MULTIDISK (integer)

Multi-disk zip archives not supported.

ZipArchive::ER_RENAME (integer)

Renaming temporary file failed.

ZipArchive::ER_CLOSE (integer)

Closing zip archive failed

ZipArchive::ER_SEEK (integer)

Seek error

ZipArchive::ER_READ (integer)

Read error

ZipArchive::ER_WRITE (integer)

Write error

ZipArchive::ER_CRC (integer)

CRC error

ZipArchive::ER_ZIPCLOSED (integer)

Containing zip archive was closed

ZipArchive::ER_NOENT (integer)

No such file.

ZipArchive::ER_EXISTS (integer)

File already exists

ZipArchive::ER_OPEN (integer)

Can't open file

ZipArchive::ER_TMPOPEN (integer)

Failure to create temporary file.

ZipArchive::ER_ZLIB (integer)

Zlib error

ZipArchive::ER_MEMORY (integer)

Memory allocation failure

ZipArchive::ER_CHANGED (string)

Entry has been changed

ZipArchive::ER_COMPNOTSUPP (integer)

Compression method not supported.

ZipArchive::ER_EOF (integer)

Premature EOF

ZipArchive::ER_INVAL (integer)

Invalid argument

ZipArchive::ER_NOZIP (integer)

Not a zip archive

ZipArchive::ER_INTERNAL (integer)

Internal error

ZipArchive::ER_INCONS (integer)

Zip archive inconsistent

ZipArchive::ER_REMOVE (integer)

Can't remove file

ZipArchive::ER_DELETED (integer)

Entry has been deleted

ZipArchive::EM_NONE (integer)

No encryption, since PHP 7.2.0, PECL zip 1.14.0

ZipArchive::EM_AES_128 (integer)

AES 128 encryption, since PHP 7.2.0, PECL zip 1.14.0

ZipArchive::EM_AES_192 (integer)

AES 1192 encryption, since PHP 7.2.0, PECL zip 1.14.0

ZipArchive::EM_AES_256 (integer)

AES 256 encryption, since PHP 7.2.0, PECL zip 1.14.0

Operating system constants for external attributes

ZipArchive::OPSYS_DOS (integer)

ZipArchive::OPSYS_AMIGA (integer)

ZipArchive::OPSYS_OPENVMS (integer)

ZipArchive::OPSYS_UNIX (integer)

ZipArchive::OPSYS_VM_CMS (integer)

ZipArchive::OPSYS_ATARI_ST (integer)

ZipArchive::OPSYS_OS_2 (integer)

ZipArchive::OPSYS_MACINTOSH (integer)

ZipArchive::OPSYS_Z_SYSTEM (integer)

ZipArchive::OPSYS_CPM (integer)

ZipArchive::OPSYS_WINDOWS_NTFS (integer)

ZipArchive::OPSYS_MVS (integer)

ZipArchive::OPSYS_VSE (integer)

ZipArchive::OPSYS_ACORN_RISC (integer)

ZipArchive::OPSYS_VFAT (integer)

ZipArchive::OPSYS_ALTERNATE_MVS (integer)

ZipArchive::OPSYS_BEOS (integer)

ZipArchive::OPSYS_TANDEM (integer)

ZipArchive::OPSYS_OS_400 (integer)

ZipArchive::OPSYS_OS_X (integer)

ZipArchive::OPSYS_DEFAULT (integer)

Since PHP 5.6.0, PECL zip 1.12.4