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このドキュメントでは、 php中国語ネットマニュアル リリース
(PECL pecl_http >= 0.10.0)
http_throttle — HTTP throttling
$sec
[, int $bytes
= 40960
] )Sets the throttle delay and send buffer size.
Note: 此函数应与 http_send_data() , http_send_file() 和 http_send_stream() 一同使用。
Note: 提供基本的节流机制,会放弃当前进程或线程,直至实体已被发送完毕。
Note:
下列 SAPI 可能不能正常的工作: FastCGI.
sec
seconds to sleep after each chunk sent
bytes
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' );
?>
[#1] dr dot sane at gmail dot com [2011-03-19 13:24:32]
Note that in the example when it says "Send file with approximately 20 kbyte/s." that is only an upper bound. The file could still be sent at a lesser speed (e.g. 10 kb/s) if the client, network, or server, cannot handle the amount.