apache_child_terminate
(PHP 4 >= 4.0.5, PHP 5, PHP 7, PHP 8)
apache_child_terminate — このリクエストの後にApacheプロセスを終了する
説明
apache_child_terminate(): void
apache_child_terminate() は、カレントのPHPリク エストを実行しているApacheプロセスをリクエスト終了時点で終了しま す。この関数は、メモリ消費量が大きなスクリプトを実行した後プロセ スを使用するために使用することが可能です。これは、メモリは通常内 部的にのみ解放され、オペレーティングシステムに戻されないためです。
この関数は、Apache, FastCGI ウェブサーバーで動作します。
パラメータ
この関数にはパラメータはありません。
戻り値
値を返しません。
注意
注意: この関数は Windows 環境にはまだ実装されていません。
+add a note
User Contributed Notes 5 notes
Stephan Ferraro ¶
14 years ago
I found out a solution for Apache 2. However this works only without threads and only on POSIX compatible OS systems (e.g. Linux, OpenSolaris...).
<?php
// Terminate Apache 2 child process after request has been
// done by sending a SIGWINCH POSIX signal (28).
function kill_on_exit() {
posix_kill( getmypid(), 28 );
}
register_shutdown_function( 'kill_on_exit' );
?>
jasonlester at nope dot com ¶
2 years ago
On FastCGI SAPIs this doesn't kill the process, it just makes the fastcgi handler fully recycle PHP at the end of the script rather than just recycling the request state. This includes php-cgi.
louis at ewens dot com ¶
16 years ago
Apache child processes are greedy. If they get bloated by a PHP application that requires a lot of memory, they stay that way. The memory is never given back to the OS until that child dies.
You could use MaxRequestsPerChild in Apache to kill all child processes automatically after a certain number of connections. Or you can use apache_child_terminate to kill the child after your memory intensive functions.
Note: apache_child_terminate is not available in Apache 2.0 handler.
daniele_dll at yahoo dot it ¶
16 years ago
In response to sam at liddicott dot com:
it isin't so simple! You should never kill an apache process because it is automatically freed when apache need!
And, if you use apache worker or thread based mpm you risk to kill the entire process!
result: DO NOT USE THIS FUNCTION!
admin at hostultra dot com ¶
17 years ago
this code will add apache_child_terminate() function if it is not already present.
if (!function_exists("apache_child_terminate")){
function apache_child_terminate(){
register_shutdown_function("killonexit");
}
function killonexit(){
@exec("kill ".getmypid());
}
}
↑ and ↓ to navigate •
Enter to select •
Esc to close
Press Enter without
selection to search using Google