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HomeBackend DevelopmentPHP Tutorial PHP调用控制台EXE程序的步骤

PHP调用控制台EXE程序的方法

1.        可以使用的函数有:exec、system、passthru、popen及反单引号五种,区别如下:

system() 输出并返回最后一行shell结果。

exec() 不输出结果,返回最后一行shell结果,所有结果可以保存到一个返回的数组里面。

passthru() 只调用命令,把命令的运行结果原样地直接输出到标准输出设备上。

以上三个函数的相同点:都可以获得命令执行的返回值。

popen()是以管道方式打开,只能读或只能写,无法同时读写,也无法得到执行的返回值。

反单引号不输出结果,可以保存所有结果,无法得到执行的返回值。

2.        针对EXE程序中有输入情况的处理办法(main参数除外,因为可以放在命令行中,这里要处理的是cin、scanf这些需要在运行时输入的参数):

C++程序如下:test.cpp

#include

using namespace std;

int main()

{

    int a, b;

    cin >> a >> b;

    cout

}

那么在PHP中可以简单使用echo管道即可:

system("echo 1 2 | test.exe");

然而,如果C++程序中有以行为单位的字符串输入,例如:

#include

#include

using namespace std;

int main()

{

    string str;

    while(getline(cin, str))

    {

        cout

    }

}

若需要输入多行,则若在Linux平台,可以用echo -e管道来解决:

system("echo -e ‘str1\nstr2’ | test.exe");

如果在Windows平台,echo没有-e参数,就必须一次执行两次或多次echo,如下:

system("( echo str1 & echo str2 ) | test.exe");

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