(3.0.8 - 3.0.18 only, PHP 4 )
set_file_buffer -- Sets file buffering on the given file pointer
Description
int set_file_buffer (int fp, int buffer)
Output using fwrite() is normally buffered at
8K. This means that if there are two processes wanting to write to the same output stream (a file),
each is paused after 8K of data to allow the other to write. set_file_buffer() sets the
buffering for write operations on the given filepointer fp to
buffer bytes. If buffer is 0 then write operations are unbuffered. This
ensures that all writes with fwrite() are completed
before other processes are allowed to write to that output stream.
The function returns 0 on success, or EOF if the request cannot be honored.
The following example demonstrates how to use set_file_buffer() to create an
unbuffered stream.
|
Example 1. set_file_buffer() example
$fp=fopen($file, "w");
if($fp){
set_file_buffer($fp, 0);
fputs($fp, $output);
fclose($fp);
}
|
|
See also fopen(),
fwrite().
|
