我想使用pcntl在PHP中实现bigpipe。然而，当我从浏览器访问网页时，出现了一些问题。
test.php
<html>
<head>
<script type="text/javascript">
function fill(id,content){ document.getElementById(id).innerHTML=content; }
</script>
</head>
<body>
<div id="1">loading...</div>
<div id="2">loading...</div>
<?php
$pids = array();
$pids[0] = pcntl_fork();
if($pids[0]==-1){
die("failed to fork'n");
}else if($pids[0] == 0){//child
sleep(1);
echo "<script type='"text/javascript'">fill('"1'",'"im txx'");</script>'n";
exit(0);
}else if($pids[0] > 0){//father
$pids[1] = pcntl_fork();
if($pids[1]==-1){
die("failed to fork'n");
}else if($pids[1] == 0){//child
echo "<script type='"text/javascript'">fill('"2'",'"im txx!'");</script>'n";
exit(0);
}else if($pids[1] >0){//father
while(pcntl_wait($status)!=-1);
}
}
?>
</body>
</html>
当我在shell中键入命令"phptest.php"时，输出是正确的：
<html>
<head>
<script type="text/javascript">
function fill(id,content){ document.getElementById(id).innerHTML=content; }
</script>
</head>
<body>
<div id="1">loading...</div>
<div id="2">loading...</div>
<script type="text/javascript">fill("2","im txx!");</script>
<script type="text/javascript">fill("1","im txx");</script>
</body>
</html>
但当我通过浏览器访问它时，页面来源出乎意料：
<html>
<head>
<script type="text/javascript">
function fill(id,content){ document.getElementById(id).innerHTML=content; }
</script>
</head>
<body>
<div id="1">loading...</div>
<div id="2">loading...</div>
<script type="text/javascript">fill("2","im txx!");</script>
为什么代码的其余部分消失了？
打印后退出：
exit(0);
这将停止任何超出此点的代码的执行
删除exit()命令