预定义常量

下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。

Phar compression constants

Constant	Value	Description
Phar::NONE (int)	0x00000000	no compression
Phar::COMPRESSED (int)	0x0000F000	bitmask that can be used with file flags to determine if any compression is present
Phar::GZ (int)	0x00001000	zlib (gzip) compression
Phar::BZ2 (int)	0x00002000	bzip2 compression

Phar file format constants

Constant	Value	Description
Phar::PHAR (int)	1	phar file format
Phar::TAR (int)	2	tar file format
Phar::ZIP (int)	3	zip file format

Phar signature constants

Constant	Value	Description
Phar::MD5 (int)	0x0001	signature with md5 hash algorithm
Phar::SHA1 (int)	0x0002	signature with sha1 hash algorithm
Phar::SHA256 (int)	0x0003	signature with sha256 hash algorithm (requires hash extension)
Phar::SHA512 (int)	0x0004	signature with sha512 hash algorithm (requires hash extension)
Phar::OPENSSL (int)	0x0010	signature with OpenSSL public/private key pair. This is a true, asymmetric key signature.
Phar::OPENSSL_SHA256 (int)
Phar::OPENSSL_SHA512 (int)

Phar webPhar mime override constants

Constant	Value	Description
Phar::PHP (int)	0	used to instruct the mimeoverrides parameter of Phar::webPhar() that the extension should be parsed as a PHP file
Phar::PHPS (int)	1	used to instruct the mimeoverrides parameter of Phar::webPhar() that the extension should be parsed as a PHP source file through highlight_file()