dongyun65343 2017-04-07 08:45
浏览 62
已采纳

从PHP调用的bash脚本输出中自动滚动

I have a PHP script which prints the output of a bash script (actually it is an expect script), which looks like this:

<?php

ob_implicit_flush(true);
ob_end_flush();

$cmd = "./expect_script.sh";

$descriptorspec = array(
   0 => array("pipe", "r"),
   1 => array("pipe", "w"),
   2 => array("pipe", "w") 
);

$process = proc_open($cmd, $descriptorspec, $pipes, realpath('./'), array());

echo '<pre>';
if (is_resource($process)) {
    while ($s = fgets($pipes[1])) {
        print $s;

    }
}
echo '</pre>';
?>

So I wanted to get the real time output with automatic scroll at the end of the page with every new line appearance and I found this: printing process output in realtime

Then I added the proposed html code to my script as follows:

<html><head>
<script language="javascript">
var int = self.setInterval("window.scrollBy(0,1000);", 200);
</script>
</head>
<body>

<?php

ob_implicit_flush(true);
ob_end_flush();

$cmd = "./expect_script.sh";

$descriptorspec = array(
   0 => array("pipe", "r"),
   1 => array("pipe", "w"),
   2 => array("pipe", "w") 
);

$process = proc_open($cmd, $descriptorspec, $pipes, realpath('./'), array());

echo '<pre>';
if (is_resource($process)) {
    while ($s = fgets($pipes[1])) {
        print $s;

    }
}
echo '</pre>';
?>

</body>
</html>

However, when script finishes the web browser won't let me browse to the top of the page because it is still scrolling to the bottom.

How shall avoid it so that I can browse once the script is finished?

  • 写回答

1条回答 默认 最新

  • dszsajhd237437 2017-04-07 09:00
    关注

    you are using setInterval to repeat some task and never ask it to stop that.

    you will need to stop setInterval from repeating itself , at the end of your php code add :

    echo '</pre>';
    echo '<script language="javascript">self.clearInterval(int);</script>';
    

    also you will need to close your proc process :

    if (is_resource($process)) {
        while ($s = fgets($pipes[1])) {
            print $s;
    
        }
        proc_close($process);
    }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥15 Java编写学籍信息管理系统
  • ¥15 IPXE网刻客户机找不到服务端
  • ¥15 小贝360-4 配二个 华772S 设置WⅰFi5G 连接
  • ¥15 vs2022的QT报错,好像是缺少winextras
  • ¥15 怎么看 cst中一个面的功率分布图
  • ¥15 c语言数据结构求9999
  • ¥15 Fiddler无法对部分小程序抓包
  • ¥60 Python代码 ip首部检验和计算代码 版本协议 首部长度 源地址 目的地址 存活时间
  • ¥18 微机原理汇编的综合实验
  • ¥15 LD衰减图用R语言对其可视化