问题描述
shell_exec是否有可能执行给定的命令，其中初始命令将要求动态输入，然后再执行基于输入本身的命令.
is it possible for shell_exec to execute a given command, where the initial command would ask the for a dynamic input then followed by a command that's based on the input itself.
我已经研究了数小时以寻找答案，但我似乎找不到我想要的东西.
i've researched for hours for the answer and i can't seem to find what i'm looking for.
我有一个与以下示例类似的要求，自
i have a requirement that's similar to the idea of the example below and any help would be appreciated since
$x = shell_exec("read -p 'Enter your name : ' x; echo 'Your name is' : $x");
回显x个输出:
您的名字是
如您所见，我正在运行多个命令，但是我不知道我可以在字符串命令中插入哪里作为输入.
as you can see i'm running multiple commands, but i do not know where i can insert inside the string command for the input.
注意:我尝试做
$x = shell_exec("echo 'Foo' | read -p 'Enter your name : ' x; echo 'Your name is :' $x");
echo $x;
输出为:
您的名字是:
我期望像
您的名字是:Foo
很明显，出了点问题.
推荐答案
其他时间，我遇到了与您相同的问题.如果在终端上执行同一行，则结果是相同的，因此这不是php问题，而是shell问题:
I've come across the same problem as you with read other times. If you execute the same line on the terminal, the result is the same, so this is not a php issue, but a shell issue:
$ echo 'Foo' | read -p 'Enter your name : ' x; echo "Your name is : $x"
Your name is :
如果将read包裹在while .. do .. done内，那么它们都可以完美运行:
If you wrap the read inside a while .. do .. done, then it all works perfectly:
$ echo 'Foo' | while read -p 'Enter your name : ' x; do echo "Your name is : $x" ; done
Your name is : Foo
我不知道为什么会这样.
I don't know why this happens though.
此外，您可以尝试使用 proc_open 和类似的方法，您将获得对输入/输出流，但是我不知道它们是否可以解决read问题.
Also you can try using proc_open and similar, and you'll get more control of the input/output streams, but I don't know whether they will work with the read issue.
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