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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