php 执行系统命令的方法

代码如下：

复制代码 代码如下:

#include
#include
#include
#include
#include

int main(int argc,char * argv[])
{
uid_t uid,euid;
char cmd[1024]="chmod -R 777 ";
uid =getuid();
euid = geteuid();


//printf("param %s\n",strcat(cmd,argv[1]));
//exit(0);
//printf("uid:%un. eudi=%un\n",getuid(),geteuid());

if(setreuid(euid,uid))
perror("setreuid");

//printf("uid:%un. eudi=%un\n",getuid(),geteuid());

system(strcat(cmd,argv[1]));
return 0;

}

复制代码 代码如下:

$chmod_line = dirname(__FILE__)."/phpchmod ./dest_dir/";
system($chmod_line);