小编给大家分享一下PHP-pcntl怎么实现多进程，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
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<?php
$arChildId = array();
for($i = 0; $i < 10; $i++)
{
$iPid = pcntl_fork();
if($iPid == -1)
{
die('can\'t be forked.');
}
if($iPid)
{
# 主进程逻辑
$arChildId[] = $iPid;
}
else
{
# 子进程逻辑
$iPid = posix_getpid(); # 获取子进程的ID
$iSeconds = rand(5, 30);
echo '* Process '. $iPid. ' was created, and Executed, and Sleep '. $iSeconds. PHP_EOL;
excuteProcess($iPid, $iSeconds);
exit();
}
}
while(count($arChildId) > 0)
{
foreach($arChildId as $iKey=> $iPid)
{
$res = pcntl_waitpid($iPid, $status, WNOHANG);
if($res == -1 || $res > 0)
{
unset($arChildId[$iKey]);
echo '* Sub process: '. $iPid. ' exited with '. $status. PHP_EOL;
}
}
}
# 子进程执行的逻辑
function excuteProcess($iPid, $iSeconds)
{
file_put_contents('./log/'.$iPid.'.log', $iPid.PHP_EOL, FILE_APPEND);
sleep($iSeconds);
}
?>运行结果
* Process 16163 was created, and Executed, and Sleep 11
* Process 16164 was created, and Executed, and Sleep 21
* Process 16165 was created, and Executed, and Sleep 24
* Process 16166 was created, and Executed, and Sleep 27
* Process 16167 was created, and Executed, and Sleep 8
* Process 16168 was created, and Executed, and Sleep 14
* Process 16169 was created, and Executed, and Sleep 14
* Process 16170 was created, and Executed, and Sleep 26
* Process 16171 was created, and Executed, and Sleep 20
* Process 16172 was created, and Executed, and Sleep 21
* Sub process: 16167 exited with 0
* Sub process: 16163 exited with 0
* Sub process: 16169 exited with 0
* Sub process: 16168 exited with 0
* Sub process: 16171 exited with 0
* Sub process: 16164 exited with 0
* Sub process: 16172 exited with 0
* Sub process: 16165 exited with 0
* Sub process: 16170 exited with 0
* Sub process: 16166 exited with 0以上是“PHP-pcntl怎么实现多进程”这篇文章的所有内容，感谢各位的阅读！相信大家都有了一定的了解，希望分享的内容对大家有所帮助，如果还想学习更多知识，欢迎关注亿速云行业资讯频道！
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