blocks|key|974643|text|您需要拥有文件系统权限才能创建目录。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|974644|示例:在Ubuntu+10.04中，apache+(php)作为user:+www-data+In+group:+www-data运行|974645|这意味着用户www-data需要访问权限才能创建目录。|974646|您可以通过使用：'su+www-data‘成为www-data用户来亲自尝试。|974647|作为一个快速解决方案，您可以这样做:+sudo+chmod777+my_parent_dir|974648|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|N|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|O|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

You need to have file system permission to create the directory.

Example: In Ubuntu 10.04 apache (php) runs as user: www-data in group: www-data

Meaning the user www-data needs access to create the directory.

You can try this yourself by using: 'su www-data' to become the www-data user.

As a quick fix, you can do: sudo chmod 777 my_parent_dir

blocks|key|974704|text|您可以做的另一件事是转到/etc/sudoers|type|unstyled|depth|inlineStyleRanges|entityRanges|data|974705|在这里添加以下行，它为该用户提供了www-data+ALL=(+ALL+:ALL)+ALL+www-data？这是因为apache使用此用户名运行。|974706|如果您的用户不同，请尝试用户名ALL=(+ALL+:ALL)+ALL|974707|这对我很有效。|974708|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

What the other thing you can do is go to: /etc/sudoers

There add the following line which gives the permission to that user
www-data ALL=(ALL:ALL) ALL
Why www-data ? this is because apache is running by this user name.

Incase if your user is different then try 
username ALL=(ALL:ALL) ALL

This worked for me.

blocks|key|974767|text|由于您使用的是mac，因此可以将自己添加到mac上的_www+(+apache用户组)组中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|974768|sudo+dseditgroup+-o+edit+-a+$USER+-t+user+_www|code-block|syntax|javascript|974769|将_www用户添加到轮组中，这似乎就是mac创建文件的方式：|974770|sudo+dseditgroup+-o+edit+-a+_www+-t+user+wheel|974771|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Since you are on a mac, you could add yourself to the _www (the apache user group) group on your mac:

<pre><code>sudo dseditgroup -o edit -a $USER -t user _www
</code></pre>

and add _www user to the wheel group which seems to be what the mac creates files as:

<pre><code>sudo dseditgroup -o edit -a _www -t user wheel
</code></pre>

blocks|key|759204|text|我知道这个帖子很老了，但也许有一天它会对某人有所帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|759205|为什么PHP会对mkdir()说“权限被拒绝”--错误的url路径。所以，要修复它，你只需要获得正确的路径。我是这样做的：|759206|<?php

$root+=+$_SERVER["DOCUMENT_ROOT"];
$dir+=+$root+.+'/somefolder/';

if(+!file_exists($dir)+)+{
++++mkdir($dir,+0755,+true);
}

?>|code-block|syntax|javascript|759207|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I know that this thread is old, but perhaps this will help someone, one day.

The problem why PHP says "Permission denied" for mkdir() - wrong url path. So, to fix it, all you need it's to obtain correct path. I did it this way:

<pre><code>&lt;?php

$root = $_SERVER["DOCUMENT_ROOT"];
$dir = $root . '/somefolder/';

if( !file_exists($dir) ) {
 mkdir($dir, 0755, true);
}

?&gt;
</code></pre>

blocks|key|974872|text|如果你正在使用LINUX，首先让我们检查一下apache的用户，因为在一些发行版中它可能是不同的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|974873|egrep+-i+'%5Euser%7C%5Egroup'+/etc/httpd/conf/httpd.conf+|code-block|syntax|javascript|974874|假设结果是"http“。执行以下操作，只需记住将path_to_folder更改为文件夹路径：|974875|chown+-R+http:http+path_to_folder
chmod+-R+g%2Brw+path_to_folder|974876|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If you'r using LINUX, first let's check apache's user, since in some distros it can be different:

<pre><code>egrep -i '^user|^group' /etc/httpd/conf/httpd.conf 
</code></pre>

Let's say the result is "http". Do the folowwing, just remember change path_to_folder to folders path:

<pre><code>chown -R http:http path_to_folder
chmod -R g+rw path_to_folder
</code></pre>

blocks|key|974912|text|检查是否不是umask的问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|974913|if+(!function_exists('mkdir_r'))+{
++++/**
+++++*+create+directory+recursively
+++++*+@param+$dirName
+++++*+@param+int+$rights
+++++*+@param+string+$dir_separator
+++++*+@return+bool
+++++*/
++++function+mkdir_r($dirName,+$rights+=+0744,+$dir_separator+=+DIRECTORY_SEPARATOR)+{
++++++++$dirs+=+explode($dir_separator,+$dirName);
++++++++$dir+=+'';
++++++++$created+=+false;
++++++++foreach+($dirs+as+$part)+{
++++++++++++$dir+.=+$part+.+$dir_separator;
++++++++++++if+(!is_dir($dir)+&&+strlen($dir)+>+0)+{
++++++++++++++++$created+=+mkdir($dir,+$rights);
++++++++++++}
++++++++}
++++++++return+$created;
++++}
}

if+(!function_exists('ensure_dir'))+{
++++/**
+++++*+ensure+directory+exist+if+not+create+
+++++*+@param+$dir_path
+++++*+@param+int+$mode
+++++*+@param+bool+$use_mask
+++++*+@param+int+$mask
+++++*+@return+bool
+++++*/
++++function+ensure_dir($dir_path,+$mode+=+0744,+$use_mask+=+true,+$mask+=+0002)+{
++++++++//+set+mask+
++++++++$old_mask+=+$use_mask+&&+$mask+!=+null
++++++++++++?+umask($mask)
++++++++++++:+null;
++++++++try+{
++++++++++++return+is_dir($dir_path)+%7C%7C+mkdir_r($dir_path,+$mode);
++++++++}+finally+{
++++++++++++if+($use_mask+&&+$old_mask+!=+null)+{
++++++++++++++++//+restore+original
++++++++++++++++umask($old_mask);
++++++++++++}
++++++++}
++++}
}|code-block|syntax|javascript|974914|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

check if its not a issue with umask 

<pre><code>if (!function_exists('mkdir_r')) {
 /**
 * create directory recursively
 * @param $dirName
 * @param int $rights
 * @param string $dir_separator
 * @return bool
 */
 function mkdir_r($dirName, $rights = 0744, $dir_separator = DIRECTORY_SEPARATOR) {
 $dirs = explode($dir_separator, $dirName);
 $dir = '';
 $created = false;
 foreach ($dirs as $part) {
 $dir .= $part . $dir_separator;
 if (!is_dir($dir) &amp;&amp; strlen($dir) &gt; 0) {
 $created = mkdir($dir, $rights);
 }
 }
 return $created;
 }
}

if (!function_exists('ensure_dir')) {
 /**
 * ensure directory exist if not create 
 * @param $dir_path
 * @param int $mode
 * @param bool $use_mask
 * @param int $mask
 * @return bool
 */
 function ensure_dir($dir_path, $mode = 0744, $use_mask = true, $mask = 0002) {
 // set mask 
 $old_mask = $use_mask &amp;&amp; $mask != null
 ? umask($mask)
 : null;
 try {
 return is_dir($dir_path) || mkdir_r($dir_path, $mode);
 } finally {
 if ($use_mask &amp;&amp; $old_mask != null) {
 // restore original
 umask($old_mask);
 }
 }
 }
}
</code></pre>

blocks|key|759350|text|在使用sudo+apt-get+install+vsftpd安装ftp服务器之后，您必须对其进行配置。要启用写访问，您必须编辑/etc/vsftpd.conf文件并取消注释|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|759351|#write_enable=YES|code-block|syntax|javascript|759352|行，所以它应该是|759353|write_enable=YES|759354|保存文件并使用sudo+service+vsftpd+restart重新启动vsftpd。|759355|有关其他配置选项，请咨询this+documentation或man+vsftpd.conf|759356|entityMap|0|LINK|mutability|MUTABLE|url|https://help.ubuntu.com/community/vsftpd|1|http://manpages.ubuntu.com/manpages/intrepid/en/man5/vsftpd.conf.5.html^0|3|R|1R|G|0|0|0|0|7|R|12|6|0|V|F|C|I|0|V|F|1|0^^$0|@$1|2|3|4|5|6|7|12|8|@$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|17|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|18|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|19|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|1A|8|@$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|6|7|1F|8|@$9|1G|A|1H|B|C]]|D|@$9|1I|A|1J|1|1K]|$9|1L|A|1M|1|1N]]|E|$]]|$1|S|3|-4|5|6|7|1O|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]|10|$5|V|W|X|E|$Y|11]]]]

After you install the ftp server with <code>sudo apt-get install vsftpd</code> you will have to configure it. To enable write access you have to edit the <code>/etc/vsftpd.conf</code> file and uncomment the 

<pre><code>#write_enable=YES
</code></pre>

line, so it should read

<pre><code>write_enable=YES
</code></pre>

Save the file and restart <code>vsftpd</code> with <code>sudo service vsftpd restart</code>.

For other configuration options consult <a href="https://help.ubuntu.com/community/vsftpd" rel="nofollow noreferrer">this documentation</a> or <a href="http://manpages.ubuntu.com/manpages/intrepid/en/man5/vsftpd.conf.5.html" rel="nofollow noreferrer"><code>man vsftpd.conf</code></a>

blocks|key|759381|text|我做了我能做的一切来解决这个问题，上面的答案都没有帮助。最后，重启apache解决了这个问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|759382|sudo+service+apache2+restart|offset|length|style|CODE|759383|我的系统正在运行Ubuntu20和Samba共享有权限问题的目录。|759384|entityMap^0|0|0|S|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

I did all I could to fix this issue and none of the above answers helped.
Finally restarting apache did the trick
<code>sudo service apache2 restart</code>
My system is running Ubuntu 20 with Samba sharing the directories that had the permission issue.

I am trying to create a directory with PHP mkdir function but I get an error as follows: <code>Warning: mkdir() [function.mkdir]: Permission denied in ...</code>. How to settle down the problem?

PHP mkdir: Permission denied problem

文件系统

服务器

Ubuntu

我试图用PHP mkdir函数创建一个目录，但我得到一个错误，如下所示：Warning: mkdir() [function.mkdir]: Permission denied in ...。如何解决这个问题？

问PHP mkdir:权限被拒绝问题
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