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Homephp教程php手册PHP调用Linux命令权限不足问题解决方法

这篇文章主要介绍了PHP调用Linux命令权限不足问题解决方法,本文是解决项目问题总结而来,通过修改sudo配置文件解决无权限执行命令问题,需要的朋友可以参考下

业务背景:  yourcmd为我的linux程序,它对权限要求非常严格,当用php去执行yourcmd程序

系统:CentOS 6.3

apache是php的执行用户

用exec函数去执行linux系统上的程序/usr/local/yourcmd/sbin/yourcmd

php代码如下:

复制代码 代码如下:


$conf_file = "/var/www/html/webroot/test.tmp";
$command = "sudo /usr/local/yourcmd/sbin/yourcmd -t -f {$conf_file}";
exec($command,$out);
print_r($out);


测试结果为没有权限

复制代码 代码如下:


Array ( [0] => sudo: no tty present and no askpass program specified )


解决步骤:

复制代码 代码如下:


$ visudo


1)注释以下行

复制代码 代码如下:


#Defaults    requiretty


2)在文件末尾加入以下

复制代码 代码如下:


apache ALL=(ALL) NOPASSWD: ALL
Cmnd_Alias yourcmd = /usr/local/yourcmd/sbin/yourcmd


最后测试结果

复制代码 代码如下:


Array ( [0] => Warning: memory is too small: 1044725760 [1] => test configure is ok )

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