   #PHP Manual Stream functions stream_set_timeout stream_socket_accept

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                            stream_set_write_buffer

   (PHP 4 >= 4.3.0)
   stream_set_write_buffer -- Sets file buffering on the given stream

Description

   int stream_set_write_buffer ( resource stream, 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.
   stream_set_write_buffer() sets the buffering for write operations on
   the given filepointer stream 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
   stream_set_write_buffer() to create an unbuffered stream.

   Example 1. stream_set_write_buffer() example
   <?php
   $fp = fopen($file, "w");
   if ($fp) {
     stream_set_write_buffer($fp, 0);
     fputs($fp, $output);
     fclose($fp);
   }
   ?>

   See also fopen() and fwrite().
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