(PECL pecl_http >= 0.10.0)
http_throttle — HTTP throttling
Sets the throttle delay and send buffer size.
Note: This function should be used in conjunction with http_send_data(), http_send_file() 和 http_send_stream().
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.
seconds to sleep after each chunk sent
the chunk size in bytes
Example #1 A http_throttle() 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');
?>