apache 检测在 PHP 中关闭的浏览器连接
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Detect browser connection closed in PHP
提问by Cheekysoft
Does anyone know if it is possible to detect whether the browser has closed the connection during the execution of a long PHPscript, when using apacheand mod_php?
有谁知道PHP在使用apacheand时是否可以检测浏览器在执行长脚本期间是否关闭了连接mod_php？
For example, in Java, the HttpOutputStreamwill throw an exceptionif one attempts to write to it after the browser has closed it -- Or will respond negatively to checkError().
例如，在 中Java，如果在浏览器关闭后尝试对其进行写入，HttpOutputStream则将抛出一个exception- 或者将对 做出否定响应checkError()。
采纳答案by Cheekysoft
回答by Willem
In at least PHP4, connection_aborted and connection_status only worked after the script sent any output to the browser (using: flush() | ob_flush()). Also don't expect accurately timed results.
至少在 PHP4 中，connection_aborted 和 connection_status 仅在脚本将任何输出发送到浏览器后才起作用（使用：flush() | ob_flush()）。也不要指望准确计时的结果。
It's mostly useful to check if there is still someone waiting on the other side.
检查另一边是否还有人在等待最有用。
回答by Kent Fredric
http://nz.php.net/register-shutdown-function
http://nz.php.net/register-shutdown-function
Probably less complicated if you just want a script to die and handle it when a user terminates.
如果您只想让脚本终止并在用户终止时处理它，那么可能不那么复杂。
( Ie: if it was a lengthy search, this would save you a bunch of operation cycles )
（即：如果这是一个冗长的搜索，这将为您节省一堆操作周期）
