PHP调用Linux命令权限不足问题解决方法

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

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

$ visudo

#Defaults    requiretty

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

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