blocks|key|964975|text|此错误是由于文件权限造成的。php/apache用户没有在目录中写入的权限。一种修复方法是使用命令chmod更改目录的mod字节。如果会话用户不拥有目录，则执行此修改需要超级权限。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|964976|$+sudo+chmod+-R+777+/path/to/directory|code-block|syntax|javascript|964977|mod+777为系统上的每个用户设置了对目录的读/写和执行。R选项递归地将修改应用于每个文件和子目录。因此，您可以一次性更改htdocs目录所有内容的权限。|964978|https://linux.die.net/man/1/chmod|964979|entityMap|0|LINK|mutability|MUTABLE|url^0|1D|5|0|0|4|3|U|1|0|0|X|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Y|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Z|8|@$9|10|A|11|B|C]|$9|12|A|13|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|14|8|@]|D|@$9|15|A|16|1|17]]|E|$]]|$1|O|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|N]]]]

<p>This error is due to file permissions. The php/apache user does not have the permissions to write in the directory. One way of fixing that is to change the mod byte of the directory with the command <code>chmod</code>. You need super permissions to execute this modification if your session user does not own the directory.</p>

<pre><code>$ sudo chmod -R 777 /path/to/directory
</code></pre>

<p>The mod <code>777</code> set read/write and execution to directory for every users on the system. The <code>R</code> option applies recursively the modification to every files and sub-directories. So, you can change the permission of all the contents of your htdocs directory all at once.</p>

<p><a href="https://linux.die.net/man/1/chmod" rel="noreferrer">https://linux.die.net/man/1/chmod</a></p>


blocks|key|2403994|text|我推荐两件事。首先，定义login.txt文件的完整路径。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2403995|$input+=+$userName.'%7C'.$userPassword.'\n';

$loginFile+=+"/opt/lampp/htdocs/PHP/Practice/PHP+Functions/Login+Validation/login.txt"

$myfile+=+file_put_contents($loginFile,+$input.PHP_EOL+,+FILE_APPEND+%7C+LOCK_EX);|code-block|syntax|javascript|2403996|第二，您正试图直接写信给：|2403997|/opt/lampp/htdocs/PHP/Practice/PHP+Functions/Login+Validation/|2403998|是不能写的。检查web服务器正在运行的用户，并授予该用户对该文件夹的读/写权限。|2403999|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

<p>I would recommend two things. Firstly, define the full path to your login.txt file.</p>

<pre><code>$input = $userName.'|'.$userPassword.'\n';

$loginFile = "/opt/lampp/htdocs/PHP/Practice/PHP Functions/Login Validation/login.txt"

$myfile = file_put_contents($loginFile, $input.PHP_EOL , FILE_APPEND | LOCK_EX);
</code></pre>

<p>Secondly, the directly you are trying to write to:</p>

<pre><code>/opt/lampp/htdocs/PHP/Practice/PHP Functions/Login Validation/
</code></pre>

<p>Is not writable. Check what user the web server is running as and give that user read/write permissions to that folder.</p>


blocks|key|2404079|text|权限错误可以使用以下两种方法来解决。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2404080|方法1：|2404081|查找web服务器用户|2404082|ps+aux+%7C+grep+httpd|code-block|syntax|javascript|2404083|注意:如果您没有更改它，默认情况下它将是守护进程。|offset|length|style|BOLD|2404084|Web服务器名称|2404085|在我的例子中，它是守护进程，在下面的命令中用您的守护进程替换它。|2404086|sudo+chown+-R+daemon+/opt/lampp/htdocs/[Working+Project]/|2404087|与Linux一样，chown用于更改任何文件夹或文件的所有权。因此，此命令将该文件夹的所有权授予daemon用户，这将使daemon用户能够完全访问该文件夹及其内的所有内容。|CODE|2404088|方法2：|2404089|将所有权限授予该文件。|2404090|以下命令授予Read、Write和Execute对User、Group和Owner的权限。所以User就是你，也可以修改它，其他程序，比如文本编辑器，也可以编辑它们，所以PHP也可以。|2404091|sudo+chmod+777+/opt/lampp/htdocs/[Working+Project]/File.txt|2404092|在这里，使用数字号码提供权限。|2404093|7适用于所有权限--+read、write和execute。|unordered-list-item|2404094|6用于read和write。|2404095|5用于read和execute。|2404096|4仅用于read。|2404097|权限以ugo模式授予。|2404098|777的前7位是User。|2404099|第二是Group。|2404100|最后是Others。|2404101|替代指挥：|2404102|sudo+chmod+u%2Brwx,g%2Brwx,o%2Brwx+/opt/lampp/htdocs/[Working+Project]/File.txt|2404103|在这里，更清楚的是，您要分配给谁的权限。因此，u代表用户，并被分配读(R)、写(W)和执行(E)权限，类似地，g代表Group，o是其他权限。|2404104|建议：|2404105|方法2不适合于大多数场景。我建议使用第一种方法，因为方法2只会授予文件读、写和执行权限，在该文件中必须首先手动创建该文件。如果您想让php根据您在网站中的逻辑创建文件呢？在这种情况下，此方法将无法工作。如果守护进程将是所有者，它只能这样做。|2404106|entityMap|0|LINK|mutability|MUTABLE|url|https://i.stack.imgur.com/ZqW0Q.png^0|0|0|0|0|K|4|0|0|8|0|0|0|0|9|5|1C|6|1O|6|0|0|0|6|4|B|5|H|7|P|4|U|5|10|5|1B|4|0|0|0|0|1|B|4|G|5|M|7|0|0|1|3|4|8|5|0|0|1|3|4|8|7|0|0|1|4|4|0|0|8|4|0|3|5|0|3|6|0|0|0|N|1|1J|1|1S|1|0|0|0^^$0|@$1|2|3|4|5|6|7|28|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|29|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|2A|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|2B|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|2C|8|@$M|2D|N|2E|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|2F|8|@]|9|@$M|2G|N|2H|1|2I]]|A|$]]|$1|S|3|T|5|6|7|2J|8|@]|9|@]|A|$]]|$1|U|3|V|5|H|7|2K|8|@]|9|@]|A|$I|J]]|$1|W|3|X|5|6|7|2L|8|@$M|2M|N|2N|O|Y]|$M|2O|N|2P|O|Y]|$M|2Q|N|2R|O|Y]]|9|@]|A|$]]|$1|Z|3|10|5|6|7|2S|8|@]|9|@]|A|$]]|$1|11|3|12|5|6|7|2T|8|@]|9|@]|A|$]]|$1|13|3|14|5|6|7|2U|8|@$M|2V|N|2W|O|Y]|$M|2X|N|2Y|O|Y]|$M|2Z|N|30|O|Y]|$M|31|N|32|O|Y]|$M|33|N|34|O|Y]|$M|35|N|36|O|Y]|$M|37|N|38|O|Y]]|9|@]|A|$]]|$1|15|3|16|5|H|7|39|8|@]|9|@]|A|$I|J]]|$1|17|3|18|5|6|7|3A|8|@]|9|@]|A|$]]|$1|19|3|1A|5|1B|7|3B|8|@$M|3C|N|3D|O|Y]|$M|3E|N|3F|O|Y]|$M|3G|N|3H|O|Y]|$M|3I|N|3J|O|Y]]|9|@]|A|$]]|$1|1C|3|1D|5|1B|7|3K|8|@$M|3L|N|3M|O|Y]|$M|3N|N|3O|O|Y]|$M|3P|N|3Q|O|Y]]|9|@]|A|$]]|$1|1E|3|1F|5|1B|7|3R|8|@$M|3S|N|3T|O|Y]|$M|3U|N|3V|O|Y]|$M|3W|N|3X|O|Y]]|9|@]|A|$]]|$1|1G|3|1H|5|1B|7|3Y|8|@$M|3Z|N|40|O|Y]|$M|41|N|42|O|Y]]|9|@]|A|$]]|$1|1I|3|1J|5|6|7|43|8|@]|9|@]|A|$]]|$1|1K|3|1L|5|1B|7|44|8|@$M|45|N|46|O|Y]]|9|@]|A|$]]|$1|1M|3|1N|5|1B|7|47|8|@$M|48|N|49|O|Y]]|9|@]|A|$]]|$1|1O|3|1P|5|1B|7|4A|8|@$M|4B|N|4C|O|Y]]|9|@]|A|$]]|$1|1Q|3|1R|5|6|7|4D|8|@]|9|@]|A|$]]|$1|1S|3|1T|5|H|7|4E|8|@]|9|@]|A|$I|J]]|$1|1U|3|1V|5|6|7|4F|8|@$M|4G|N|4H|O|Y]|$M|4I|N|4J|O|Y]|$M|4K|N|4L|O|Y]]|9|@]|A|$]]|$1|1W|3|1X|5|6|7|4M|8|@]|9|@]|A|$]]|$1|1Y|3|1Z|5|6|7|4N|8|@]|9|@]|A|$]]|$1|20|3|-4|5|6|7|4O|8|@]|9|@]|A|$]]]|21|$22|$5|23|24|25|A|$26|27]]]]

<p>Permission errors can be solved using the following two methods.</p>
<h1>Method 1:</h1>
<h3>Find web server user</h3>
<pre><code>ps aux | grep httpd
</code></pre>
<p>Note: It will be <strong>daemon</strong> by default if you haven't changed it.</p>
<p><a href="https://i.stack.imgur.com/ZqW0Q.png" rel="nofollow noreferrer">Web Server Name</a></p>
<h3>In my case it's <em>daemon</em>, replace it with yours in following command.</h3>
<pre><code>sudo chown -R daemon /opt/lampp/htdocs/[Working Project]/
</code></pre>
<p>As in Linux <code>chown</code> is used to change ownership of any folder or file. So this command gives ownership of that folder to the <code>daemon</code> user, which will enable the <code>daemon</code> user to have complete access to that folder and everything inside it too.</p>
<h1>Method 2:</h1>
<h3>Give All permissions to that file.</h3>
<p>The following command gives <code>Read</code>, <code>Write</code> and <code>Execute</code> permissions to <code>User</code>, <code>Group</code> and <code>Owner</code>. So <code>User</code> is you, who can also modify it, other programs such as text editors can also edit them, and so PHP too.</p>
<pre><code>sudo chmod 777 /opt/lampp/htdocs/[Working Project]/File.txt
</code></pre>
<p>Here permissions are provided using numeric number</p>
<ul>
<li><code>7</code> is for all permissions <code>read</code>, <code>write</code> and <code>execute</code>.</li>
<li><code>6</code> is used for <code>read</code> and <code>write</code>.</li>
<li><code>5</code> is used for <code>read</code> and <code>execute</code>.</li>
<li><code>4</code> is used for <code>read</code> only.</li>
</ul>
<p>The permissions are granted in ugo pattern.</p>
<ul>
<li>First 7 in 777 is for <code>User</code>.</li>
<li>2nd is for <code>Group</code>.</li>
<li>Last is for <code>Others</code>.</li>
</ul>
<h4>Alternative command:</h4>
<pre><code>sudo chmod u+rwx,g+rwx,o+rwx /opt/lampp/htdocs/[Working Project]/File.txt
</code></pre>
<p>Here it is more clear that which permissions you're assigning to whom. so <code>u</code> stands for User, and is being assigned Read(r), Write(w) and Execute(e) permissions, similarly <code>g</code> is for Group, and <code>o</code> is Other.</p>
<h3>Advice:</h3>
<p>Method 2 is not suitable for most of the scenarios. I recommend using the First Method because method 2 will only give read, write and execute permissions to a file where the file must be created by you manually first. What if you wanted php to create the file according to your logic in the website. In that case this method will not work. if daemon will be the owner, it can do that only.</p>


blocks|key|690956|text|此错误是由于文件权限造成的。文件或文件夹用户没有在目录中写入的权限。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|690957|$+sudo+chmod+-R+755+/directory|code-block|syntax|javascript|690958|755+-这组权限通常在web服务器中使用。所有者拥有读取、写入和执行的所有权限。其他人只能读取和执行，但不能对文件进行更改。|690959|https://www.maketecheasier.com/file-permissions-what-does-chmod-777-means/|offset|length|690960|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|22|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|V|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|W|8|@]|9|@$K|X|L|Y|1|Z]]|A|$]]|$1|M|3|-4|5|6|7|10|8|@]|9|@]|A|$]]]|N|$O|$5|P|Q|R|A|$S|J]]]]

<p>This error is due to file permissions. The file or folder user does not have the permissions to write in the directory.</p>

<pre><code>$ sudo chmod -R 755 /directory
</code></pre>

<p>755 – This set of permission is commonly used in web server. The owner has all the permissions to read, write and execute. Everyone else can only read and execute, but cannot make changes to the file.</p>

<p><a href="https://www.maketecheasier.com/file-permissions-what-does-chmod-777-means/" rel="nofollow noreferrer">https://www.maketecheasier.com/file-permissions-what-does-chmod-777-means/</a></p>


blocks|key|965043|text|您可以在终端中运行下面的命令，为htdocs文件夹及其所有内容提供所有权限(对所有用户都是读/写/执行)。请注意，这在任何方面都是不安全的，特别是在生产中！|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|965044|$+sudo+chmod+-R+777+/opt/lampp/htdocs/+|code-block|syntax|javascript|965045|entityMap^0|G|6|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

<p>You can run the command below in a terminal to give the <code>htdocs</code> folder and all of it's contents all permissions (read/write/execute for all users). Note that this is not safe in any way, especially in production!</p>
<pre><code>$ sudo chmod -R 777 /opt/lampp/htdocs/ 
</code></pre>


<p>I am using Ubuntu 16.04 &amp; xampp 5.6.30.  I am trying to create a simple login program using file with validation but I am facing problem while putting my data into a file named "login.txt".</p>

<p><strong>Error:</strong> </p>

<pre><code>file_put_contents(login.txt): failed to open stream: Permission denied in /opt/lampp/htdocs/PHP/Practice/PHP Functions/Login Validation/login.php on line 38
</code></pre>

<p><strong>My code:</strong> </p>

<pre><code>$input = $userName.'|'.$userPassword.'\n';

$myfile = file_put_contents('login.txt', $input.PHP_EOL , FILE_APPEND | LOCK_EX);
</code></pre>


failed to open stream: Permission denied in /opt/lampp/htdocs

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在使用Ubuntu16.04和xampp5.6.30。我正在尝试使用带有验证的文件创建一个简单的登录程序，但当我将数据放入一个名为"login.txt“的文件时，我面临着问题。错误：file_put_contents(login.txt): failed to open stream: Permission den...

问未能打开流: /opt/lampp/htdocs中的权限被拒绝
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问未能打开流: /opt/lampp/htdocs中的权限被拒绝EN