(no version information, might be only in CVS)
php_stream_copy_to_mem()
allocates a buffer maxlen+1
bytes in length using pemalloc()
(passing persistent). It
then reads maxlen bytes
from src and stores them in
the allocated buffer.
The allocated buffer is returned in buf, and the number of bytes
successfully read. You, the caller, are responsible for
freeing the buffer by passing it and
persistent to
pefree().
If you want to copy all remaining data from the src stream, pass the constant
PHP_STREAM_COPY_ALL as the
value of maxlen.
注: This function will attempt to copy the data in the most efficient manner, using memory mapped files when possible.