(no version information, might be only in CVS)
php_stream_fopen_temporary_file() generates a temporary
file name in the directory specified by dir and with a prefix of pfx. The generated file name is
returns in the opened
parameter, which you are responsible for cleaning up using efree(). A stream is opened on that
generated filename in "w+b" mode. The file is NOT
automatically deleted; you are responsible for unlinking or
moving the file when you have finished with it.