PHP - Manual: Phar manifest file entry definition

2025-04-28

Phar manifest file entry definition

Each file in the manifest contains the following information:

**Phar Manifest file entry**
Size in bytes	Description
4 bytes	Filename length in bytes
??	Filename (length specified in previous)
4 bytes	Un-compressed file size in bytes
4 bytes	Unix timestamp of file
4 bytes	Compressed file size in bytes
4 bytes	CRC32 checksum of un-compressed file contents
4 bytes	Bit-mapped File-specific flags
4 bytes	Serialized File Meta-data length (`0` for none)
??	Serialized File Meta-data, stored in serialize() format

Note that as of API version 1.1.1, empty directories are stored as filenames with a trailing slash like my/directory/

The File-specific bitmap values recognized are:

**Bitmap values recognized**
Value	Description
`0x000001FF`	These bits are reserved for defining specific file permissions of a file. Permissions are used for fstat() and can be used to recreate desired permissions upon extraction.
`0x00001000`	If set, this file is compressed with zlib DEFLATE compression
`0x00002000`	If set, this file is compressed with bzip2 compression

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