gzopen Open gz-file php函数


(PHP 4, PHP 5)

gzopenOpen gz-file


resource gzopen ( string $filename , string $mode [, int $use_include_path = 0 ] )

Opens a gzip (.gz) file for reading or writing.

gzopen() can be used to read a file which is not in gzip format; in this case gzread() will directly read from the file without decompression.



The file name.


As in fopen() (rb or wb) but can also include a compression level (wb9) or a strategy: f for filtered data as in wb6f, h for Huffman only compression as in wb1h. (See the description of deflateInit2 in zlib.h for more information about the strategy parameter.)


You can set this optional parameter to 1, if you want to search for the file in the include_path too.


Returns a file pointer to the file opened, after that, everything you read from this file descriptor will be transparently decompressed and what you write gets compressed.

If the open fails, the function returns FALSE.


Example #1 gzopen() Example



gzpassthru Output all remaining data on a gz-file pointer
gzputs 别名 gzwrite
gzread Binary-safe gz-file read
gzrewind Rewind the position of a gz-file pointer
gzseek Seek on a gz-file pointer
gztell Tell gz-file pointer read/write position
gzuncompress Uncompress a compressed string
gzwrite Binary-safe gz-file write
hash Generate a hash value (message digest)
hash_algos Return a list of registered hashing algorithms
hash_copy Copy hashing context
hash_file Generate a hash value using the contents of a given file
hash_final Finalize an incremental hash and return resulting digest
hash_hmac Generate a keyed hash value using the HMAC method

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