gzwrite(3) [php man page]
GZWRITE(3) 1 GZWRITE(3) gzwrite - Binary-safe gz-file write SYNOPSIS
int gzwrite (resource $zp, string $string, [int $length]) DESCRIPTION
gzwrite(3) writes the contents of $string to the given gz-file. PARAMETERS
o $zp - The gz-file pointer. It must be valid, and must point to a file successfully opened by gzopen(3). o $string - The string to write. o $length - The number of uncompressed bytes to write. If supplied, writing will stop after $length (uncompressed) bytes have been written or the end of $string is reached, whichever comes first. Note Note that if the $length argument is given, then the magic_quotes_runtime configuration option will be ignored and no slashes will be stripped from $string. RETURN VALUES
Returns the number of (uncompressed) bytes written to the given gz-file stream. EXAMPLES
Example #1 gzwrite(3) example <?php $string = 'Some information to compress'; $gz = gzopen('somefile.gz','w9'); gzwrite($gz, $string); gzclose($gz); ?> SEE ALSO
gzread(3), gzopen(3). PHP Documentation Group GZWRITE(3)
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GZPASSTHRU(3) 1 GZPASSTHRU(3) gzpassthru - Output all remaining data on a gz-file pointer SYNOPSIS
int gzpassthru (resource $zp) DESCRIPTION
Reads to EOF on the given gz-file pointer from the current position and writes the (uncompressed) results to standard output. Note You may need to call gzrewind(3) to reset the file pointer to the beginning of the file if you have already written data to it. Tip If you just want to dump the contents of a file to the output buffer, without first modifying it or seeking to a particular offset, you may want to use the readgzfile(3) function, which saves you the gzopen(3) call. PARAMETERS
o $zp - The gz-file pointer. It must be valid, and must point to a file successfully opened by gzopen(3). RETURN VALUES
The number of uncompressed characters read from $gz and passed through to the input, or FALSE on error. EXAMPLES
Example #1 gzpassthru(3) example <?php $fp = gzopen('file.gz', 'r'); gzpassthru($fp); gzclose($fp); ?> PHP Documentation Group GZPASSTHRU(3)