[系统] php exec ls 结果?

flowingtree

<?php
$a=exec("ls -al /home/demo/admin/include";
echo $a;
?>;

结果是:
-rw-r--r-- 1 demo nobody 30 Sep 17 14:44 test.php


其实我这里有很有很多文件呀,为什么只显示一条呢?

HonestQiao

It simply returns the last line from the result of the command.

http://w.yi.org/ftp/FAPM/PHP/php_manual_zh/function.exec.html

mboo2005

<?php
$a=passthru("ls -al /home/demo/admin/include";
echo $a;
?>;
不过不能自动换行

HonestQiao

原帖由 "HonestQiao" 发表：
It simply returns the last line from the result of the command.

http://w.yi.org/ftp/FAPM/PHP/php_manual_zh/function.exec.html

这里说得很清楚，exec可能只返回最后一行，不知道有几个人看了？

flowingtree

谢谢你哦,不过上上楼的说的也没错呀

HonestQiao

[quote]原帖由 "flowingtree"]谢谢你哦,不过上上楼的说的也没错呀[/quote 发表：


说你咧   

wyf99

请问怎样设置才能在php中运行exec()并得到结果呢？我的是linux10(fedora core)+apache2+php4    safe_mode=off   apache2的user/group=apache/apache   
但
<?php
$a=exec("ls ";
echo $a;
?>;
却得不到任何东西，错误返回值为127（找不到命令）

xuefengal

exec
(PHP 3, PHP 4, PHP 5)

exec -- Execute an external program
说明
string exec ( string command [, array &output [, int &return_var]] )

返回值
The last line from the result of the command. If you need to execute a command and have all the data from the command passed directly back without any interference, use the passthru() function.

To get the output of the executed command, be sure to set and use the output parameter.


$cmd = "ls /root";

exec($cmd,$out);

print_r($out);