[英]php function pcntl_exec(“/bin/sh”, “/bin/sh”)
According to the php manual , the function pcntl_exec
is equal to the syscall execve
.根据php 手册, function
pcntl_exec
等于系统调用execve
。
So I think所以我认为
pcntl_exec("/bin/sh", ["/bin/sh"]);
should do the same thing like:应该做同样的事情,比如:
#!/bin/sh
/bin/sh
However I got the result: # /bin/sh: 1: Syntax error: ")" unexpected
但是我得到了结果:
# /bin/sh: 1: Syntax error: ")" unexpected
Why?为什么?
php version 7.4.3(cli) Zend Engine v3.4.0
php 版本
7.4.3(cli) Zend Engine v3.4.0
This is incorrect:这是不正确的:
should do the same thing like:
应该做同样的事情,比如:
#!/bin/sh /bin/sh
It is equivalent to running the command /bin/sh /bin/sh
which will attempt to interpret /bin/sh
as a shell script.它等效于运行命令
/bin/sh /bin/sh
,它将尝试将/bin/sh
解释为 shell 脚本。
The actual equivalent of what you want would be:您想要的实际等价物是:
pcntl_exec("/bin/sh", ["-c", "/bin/sh"]);
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