blocks|key|621|text|检查用户是否为管理员|type|unstyled|depth|inlineStyleRanges|entityRanges|data|622|$admins+=+get_admins();
$isadmin+=+false;
foreach($admins+as+$admin)+{
++++if+($USER->id+==+$admin->id)+{
++++++++$isadmin+=+true;
++++++++break;
++++}
}|code-block|syntax|javascript|623|将结果用于函数|624|if+($isadmin)+{
++++echo+"you+are+an+admin";++++
}+else+{+
++++echo+"you+are+not+an+amidn";
}|625|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|$]]

checking user is an admin or not

<pre><code>$admins = get_admins();
$isadmin = false;
foreach($admins as $admin) {
 if ($USER-&gt;id == $admin-&gt;id) {
 $isadmin = true;
 break;
 }
}
</code></pre>

use the result for functions 

<pre><code>if ($isadmin) {
 echo "you are an admin"; 
} else { 
 echo "you are not an amidn";
}
</code></pre>

blocks|key|569|text|$context+=+get_context_instance+(CONTEXT_SYSTEM);
$roles+=+get_user_roles($context,+$USER->id,+false);
$role+=+key($roles);
$roleid+=+$roles[$role]->roleid;|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|570|它对我很管用|unstyled|571|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>$context = get_context_instance (CONTEXT_SYSTEM);
$roles = get_user_roles($context, $USER-&gt;id, false);
$role = key($roles);
$roleid = $roles[$role]-&gt;roleid;
</code></pre>

it works to me

blocks|key|2580862|text|在Moodle2.x中，您可以使用函数get_user_roles，这将返回在课程、站点或模块的上下文中分配给特定用户的角色列表。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2580863|$context+=+get_context_instance(CONTEXT_COURSE,+$courseid,+true);
$roles+=+get_user_roles($context,+$USER->id,+true);|code-block|syntax|javascript|2580864|您还可以获取模块上下文中的角色。|2580865|$context+=+get_context_instance(CONTEXT_MODULE,+$cm->id,+true);
$roles+=+get_user_roles($context,+$USER->id,+true);|2580866|entityMap^0|J|E|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

In Moodle 2.x you may use the function <code>get_user_roles</code> and this will return list of roles assigned to a particular user in context of course or site or module. 

<pre><code>$context = get_context_instance(CONTEXT_COURSE, $courseid, true);
$roles = get_user_roles($context, $USER-&gt;id, true);
</code></pre>

You can also get the roles in context of module.

<pre><code>$context = get_context_instance(CONTEXT_MODULE, $cm-&gt;id, true);
$roles = get_user_roles($context, $USER-&gt;id, true);
</code></pre>

blocks|key|1904842|text|在moodle中，角色是基于上下文的。我认为这段代码会对你有帮助。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1904843|global+$COURSE，$USER；|1904844|$context+=+get_context_instance(CONTEXT_COURSE,$COURSE->id);

if+(has_capability('moodle/legacy:student',+$context,+$USER->id,+false)+)+{
echo+"Student";
}

if+(has_capability('moodle/legacy:editingteacher',+$context,+$USER->id,+false))+{
echo+"is+Teacher ";
}
if+(has_capability('moodle/legacy:admin',+$context,+$USER->id,+false))+{
echo+"is+ADMIN ";
}|code-block|syntax|javascript|1904845|请记住，没有默认的学生和教师角色的Moodle站点是完全可能的(但不太可能|1904846|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

In moodle the roles are based on the context. 
I think this code snippet will be helpful for you.

global $COURSE, $USER;

<pre><code>$context = get_context_instance(CONTEXT_COURSE,$COURSE-&gt;id);

if (has_capability('moodle/legacy:student', $context, $USER-&gt;id, false) ) {
echo "Student";
}

if (has_capability('moodle/legacy:editingteacher', $context, $USER-&gt;id, false)) {
echo "is Teacher&lt;br/&gt;";
}
if (has_capability('moodle/legacy:admin', $context, $USER-&gt;id, false)) {
echo "is ADMIN&lt;br/&gt;";
}
</code></pre>

Bear in mind that it is perfectly possible (but unlikely) to have a Moodle site without the default Student and Teacher roles

blocks|key|2580910|text|您可以通过以下方式测试用户具有哪些角色：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2580911|if+(user_has_role_assignment($user1->id,+$roleid))
++++echo+"User+is+a+teacher+in+some+course";|code-block|syntax|javascript|2580912|教师的角色id通常是3，学生的角色id通常是5，但是您可以查看站点管理->+Users+->+Permissions+->+Define+Roles中的表来测试这一点|2580913|请注意，一个用户可以拥有多个角色。function+user_has_role_assignment似乎在测试他在系统范围内拥有哪些角色。|2580914|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]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You can test for which roles a user has in the following manner:

<pre><code>if (user_has_role_assignment($user1-&gt;id, $roleid))
 echo "User is a teacher in some course";
</code></pre>

The role id of a teacher is usually 3, and the role id of a student is usually 5, but you can test this looking at the table in Site Administration-> Users -> Permissions -> Define Roles

Please note that one user can have various roles. The function user_has_role_assignment seems to test of which roles he has system wide.

blocks|key|4695384|text|包括库'accesslib.php‘，然后使用'is_siteadmin()’函数|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4695385|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

include the library 'accesslib.php' and then use the 'is_siteadmin()' function

How to get context/role of logged in user in moodle?
I am trying to implement a context-aware block. The block would suggest the right quizzes to its users based on their moods. 

Role can be a teacher, student, teacher assistant or admin. I have already found the <code>get_context_instance()</code> &amp; <code>has_compatibility()</code> functions, but I don't know how to use them for this purpose.

Moodle how to find out the role of the logged in user

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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如何在moodle中获取登录用户的上下文/角色？我正在尝试实现一个上下文感知块。该区块将根据用户的情绪向他们推荐正确的测验。角色可以是教师、学生、教师助理或管理员。我已经找到了get_context_instance()和has_compatibility()函数，但我不知道如何使用它们来实现此目的。

问Moodle如何找出登录用户的角色
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回答 6

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