(PHP 4, PHP 5, PHP 7, PHP 8)
readgzfile — Output a gz-file
Reads a file, decompresses it and writes it to standard output.
readgzfile() can be used to read a file which is not in gzip format; in this case readgzfile() will directly read from the file without decompression.
filenameThe file name. This file will be opened from the filesystem and its contents written to standard output.
use_include_path
You can set this optional parameter to 1, if you
want to search for the file in the include_path too.
Returns the number of (uncompressed) bytes read from the file on success,
或者在失败时返回 false
失败时抛出 E_WARNING 警告。