Question

嘿，我只是停留在Array Object中。我正在从foreach值接收数组对象中的课程列表。这就是价值。

Cmd + Shift + T

最后，在foreach值之外，我只得到一个值。

我想要什么：

我要连接stdclass对象中的所有[fullname]值。像这样

Course List
stdClass Object
(
    [id] => 4
    [category] => 24
    [sortorder] => 10004
    [fullname] => test-course-2
    [shortname] => test-course-3
    [idnumber] => 
    [summary] => <p>Testing Course 2</p>
    [summaryformat] => 1
    [format] => singleactivity
    [showgrades] => 0
    [newsitems] => 0
    [startdate] => 0
    [enddate] => 0
    [marker] => 0
    [maxbytes] => 0
    [legacyfiles] => 0
    [showreports] => 0
    [visible] => 1
    [visibleold] => 1
    [groupmode] => 0
    [groupmodeforce] => 0
    [defaultgroupingid] => 0
    [lang] => 
    [calendartype] => 
    [theme] => 
    [timecreated] => 1536066556
    [timemodified] => 1536066556
    [requested] => 0
    [enablecompletion] => 1
    [completionnotify] => 0
    [cacherev] => 1547443283
)
Course List
stdClass Object
(
    [id] => 3
    [category] => 24
    [sortorder] => 10005
    [fullname] => test-course-2
    [shortname] => test-course-2
    [idnumber] => 
    [summary] => <p>Testing Course 2</p>
    [summaryformat] => 1
    [format] => singleactivity
    [showgrades] => 0
    [newsitems] => 0
    [startdate] => 0
    [enddate] => 0
    [marker] => 0
    [maxbytes] => 0
    [legacyfiles] => 0
    [showreports] => 0
    [visible] => 1
    [visibleold] => 1
    [groupmode] => 0
    [groupmodeforce] => 0
    [defaultgroupingid] => 0
    [lang] => 
    [calendartype] => 
    [theme] => 
    [timecreated] => 1536066548
    [timemodified] => 1536066548
    [requested] => 0
    [enablecompletion] => 1
    [completionnotify] => 0
    [cacherev] => 1547443283
)
Course List
stdClass Object
(
    [id] => 2
    [category] => 24
    [sortorder] => 10006
    [fullname] => test-course-1
    [shortname] => test-course-1
    [idnumber] => 
    [summary] => <p>Testing&nbsp;</p>
    [summaryformat] => 1
    [format] => singleactivity
    [showgrades] => 0
    [newsitems] => 0
    [startdate] => 0
    [enddate] => 0
    [marker] => 0
    [maxbytes] => 0
    [legacyfiles] => 0
    [showreports] => 0
    [visible] => 1
    [visibleold] => 1
    [groupmode] => 0
    [groupmodeforce] => 0
    [defaultgroupingid] => 0
    [lang] => 
    [calendartype] => 
    [theme] => 
    [timecreated] => 1536066531
    [timemodified] => 1536066531
    [requested] => 0
    [enablecompletion] => 1
    [completionnotify] => 0
    [cacherev] => 1547443283
)
course Receving
stdClass Object
(
    [id] => 2
    [category] => 24
    [sortorder] => 10006
    [fullname] => test-course-1
    [shortname] => test-course-1
    [idnumber] => 
    [summary] => <p>Testing&nbsp;</p>
    [summaryformat] => 1
    [format] => singleactivity
    [showgrades] => 0
    [newsitems] => 0
    [startdate] => 0
    [enddate] => 0
    [marker] => 0
    [maxbytes] => 0
    [legacyfiles] => 0
    [showreports] => 0
    [visible] => 1
    [visibleold] => 1
    [groupmode] => 0
    [groupmodeforce] => 0
    [defaultgroupingid] => 0
    [lang] => 
    [calendartype] => 
    [theme] => 
    [timecreated] => 1536066531
    [timemodified] => 1536066531
    [requested] => 0
    [enablecompletion] => 1
    [completionnotify] => 0
    [cacherev] => 1547443283
)

代码使用：

stdClass Object
(
    [fullname] => test-course-2,test-course-2,test-course-1
)

此代码仅返回一个值。请帮帮我。

Answer 1

您目前每次迭代都覆盖$course变量两次。这就是为什么您只获得一个（最后一个）值的原因。

我们需要确保将课程推入数组，而不是覆盖相同的变量。
像这样：

// Define the array that will keep all our courses
$courses = [];

// Define an array that will keep all the names
$names = ['fullname' => []];

foreach($enrolledusercourses as $key =>$value){ 
    // Save the ID to a temporary variable
    $id = $enrolledusercourses[$key]->id;

    if ($id) {
        // This is also a temporary variable. ($course vs $courses)
        $course = $DB->get_record('course', array('id' => $id), '*', MUST_EXIST);

        if ($course) {
            // We found a course, let's add it to the courses array
            $courses[] = $course;

            // Add the name to your names array
            $names['fullname'][] = $course->fullname;
        }
    }
}

// Now we have an array (the new $courses variable) that will contain all the courses.

// Implode the names
$names['fullname'] = implode(', ', $names['fullname']);
// Convert it to an object
$names = (object)$names;

echo "course Receiving";
print_object($courses);
return $courses;

以上内容将为您提供一个包含所有课程的数组，以及一个所有逗号分隔的对象。

StdClass对象仅返回一个值

1 个答案: