http_throttle(3) [php man page]

HTTP_THROTTLE(3)							 1							  HTTP_THROTTLE(3)

http_throttle - HTTP throttling

SYNOPSIS

       void http_throttle (float  $sec, [int  $bytes = 40960])

DESCRIPTION

	Sets the throttle delay and send buffer size.

       Note

	      This function should be used in conjunction with http_send_data(3), http_send_file(3) and http_send_stream(3).

       Note

	      Provides a basic throttling mechanism, which will yield the current process or thread until the entity has been completely sent.

       Note

	       This may not work as expected with the following SAPI(s): FastCGI.

PARAMETERS

	      o $sec
		- seconds to sleep after each chunk sent

	      o $bytes
		- the chunk size in bytes

EXAMPLES

       Example #1

	      A http_throttle(3) example

	       Send file with approximately 20 kbyte/s.

	      <?php
	      // ~ 20 kbyte/s
	      # http_throttle(1, 20000);
	      # http_throttle(0.5, 10000);
	      http_throttle(0.1, 2000);
	      http_send_file('document.pdf');
	      ?>

SEE ALSO

       http_send_data(3), http_send_file(3), http_send_stream(3), the HttpResponse class if you are using PHP 5.1.0 and above.

PHP Documentation Group 													  HTTP_THROTTLE(3)

HTTP_CACHE_LAST_MODIFIED(3)						 1					       HTTP_CACHE_LAST_MODIFIED(3)

http_cache_last_modified - Caching by last modification

SYNOPSIS

       bool http_cache_last_modified ([int  $timestamp_or_expires])

DESCRIPTION

	Attempts to cache the sent entity by its last modification date.

	If  the supplied argument is greater than 0, it is handled as timestamp and will be sent as date of last modification. If it is 0 or omit-
       ted, the current time will be sent as Last-Modified date. If it's negative, it is handled as expiration time in seconds, which  means  that
       if  the	requested  last  modification date is not between the calculated timespan, the Last-Modified header is updated and the actual body
       will be sent.

	A log entry will be written to the cache log if the INI settinghttp.log.cache is set and the cache attempt was successful.

       Note

	      This function may be used in conjunction with http_send_data(3), http_send_file(3) and http_send_stream(3).

PARAMETERS

	      o $timestamp_or_expires
		- Unix timestamp

RETURN VALUES

	Returns FALSE or exits on success with 304 Not Modified if the entity is cached. See  the  INI	settinghttp.force_exit	for  what  "exits"
       means.

EXAMPLES

       Example #1

	      A http_cache_last_modified(3) example

	       Caching for 5 seconds.

	      <?php
	      http_cache_last_modified(-5);
	      printf("%s
", http_date());
	      ?>

SEE ALSO

       http_cache_etag(3), the HttpResponse class if you are using PHP 5.1.0 and above.

PHP Documentation Group 											       HTTP_CACHE_LAST_MODIFIED(3)