我有一个由第三方供应商提供的多维数组，细节如下。
$data = array (
"studentData" => array (
array(
"university" => array(
"name" => "Tes Name",
"address" => "Street name",
"province" => "Province name",
),
"college" => array(
"name" => "IT"
),
"examDate" => "2019-01-20",
"lesson" =>
array(
"lessonId" =>
array(
"lessonIdNumber" => "40"
)
),
"countStudent" => "2",
"examResult" =>
array(
array(
"studentGender" => "Male",
"studentName" =>
array(
array(
"name" => "George",
"result" => "98"
),
array(
"name" => "Leonard",
"result" => "84"
),
),
)
)
),
array(
"university" => array(
"name" => "Tes Name",
"address" => "Street name",
"province" => "Province name",
),
"college" => array(
"name" => "IT"
),
"examDate" => "2019-01-20",
"lesson" =>
array(
"lessonId" =>
array(
"lessonIdNumber" => "41"
)
),
"countStudent" => "1",
"examResult" =>
array(
"studentGender" => "Female",
"examDate" => "2019-01-20",
"lessonId" => array(
"lessonIdNumber" => "40"
),
"countStudent" => "1",
"studentName" =>
array(
array(
"name" => "Anita",
"result" => "71"
)
),
)
),
array(
"university" => array(
"name" => "Tes Name",
"address" => "Street name",
"province" => "Province name",
),
"college" => array(
"name" => "Design Graphics"
),
"examDate" => "2019-01-20",
"lesson" =>
array(
"lessonId" =>
array(
"lessonIdNumber" => "42"
)
),
"countStudent" => "3",
"examResult" =>
array(
array(
"studentGender" => "Male",
"studentName" =>
array(
array(
"name" => "Edward",
"result" => "83"
),
array(
"name" => "William",
"result" => "86"
),
array(
"name" => "Oliver",
"result" => "77"
),
),
)
)
),
array(
"university" => array(
"name" => "Tes Name",
"address" => "Street name",
"province" => "Province name",
),
"college" => array(
"name" => "Design Graphics"
),
"examDate" => "2019-01-20",
"lesson" =>
array(
"lessonId" =>
array(
"lessonIdNumber" => "42"
)
),
"countStudent" => "2",
"examResult" =>
array(
array(
"studentGender" => "Female",
"studentName" =>
array(
array(
"name" => "Isabel",
"result" => "77"
),
array(
"name" => "Dorothi",
"result" => "86"
)
),
),
)
),
),
"lessonData" => array (
array(
"lessonId" => array(
"lessonIdNumber" => "40"
),
"sessionName" => "PHP and Array",
"teacherData" => array(
"teacherName" => "Teacher Name One",
"teacherId" => "229910",
),
),
array(
"lessonId" => array(
"lessonIdNumber" => "41"
),
"sessionName" => "Photoshop",
"teacherData" => array(
"teacherName" => "Teacher Name Two",
"teacherId" => "981881",
),
),
array(
"lessonId" => array(
"lessonIdNumber" => "42"
),
"sessionName" => "Coreldraw",
"teacherData" => array(
"teacherName" => "Teacher Name Three",
"teacherId" => "327718",
),
)
),
);
我必须根据以下情况，根据“ lessonData”标签中每个“ lessonIdNumber”修改上面数组的结果：将[sessionName]和[teacherData]的值从[lessonData]移到[studentData]数组中的每个[lesson]下基于每个[lessonIdNumber]。
Array
(
[studentData] => Array
(
[0] => Array
(
[university] => Array
(
[name] => Tes Name
[address] => Street name
[province] => Province name
)
[college] => Array
(
[name] => IT
)
[examDate] => 2019-01-20
[lesson] => Array
(
[lessonId] => Array
(
[lessonIdNumber] => 40
)
)
[sessionName] => PHP and Array
[teacherData] => Array
(
[teacherName] => Teacher Name One
[teacherId] => 229910
)
[countStudent] => 2
[examResult] => Array
(
[0] => Array
(
[studentGender] => Male
[studentName] => Array
(
[0] => Array
(
[name] => George
[result] => 98
)
[1] => Array
(
[name] => Leonard
[result] => 84
)
)
)
)
)
[1] => Array
(
[university] => Array
(
[name] => Tes Name
[address] => Street name
[province] => Province name
)
[college] => Array
(
[name] => IT
)
[examDate] => 2019-01-20
[lesson] => Array
(
[lessonId] => Array
(
[lessonIdNumber] => 41
)
)
[sessionName] => Photoshop
[teacherData] => Array
(
[teacherName] => Teacher Name Two
[teacherId] => 981881
)
[countStudent] => 1
[examResult] => Array
(
[studentGender] => Female
[examDate] => 2019-01-20
[lessonId] => Array
(
[lessonIdNumber] => 40
)
[countStudent] => 1
[studentName] => Array
(
[0] => Array
(
[name] => Anita
[result] => 71
)
)
)
)
[2] => Array
(
[university] => Array
(
[name] => Tes Name
[address] => Street name
[province] => Province name
)
[college] => Array
(
[name] => Design Graphics
)
[examDate] => 2019-01-20
[lesson] => Array
(
[lessonId] => Array
(
[lessonIdNumber] => 42
)
)
[sessionName] => Coreldraw
[teacherData] => Array
(
[teacherName] => Teacher Name Three
[teacherId] => 327718
)
[countStudent] => 3
[examResult] => Array
(
[0] => Array
(
[studentGender] => Male
[studentName] => Array
(
[0] => Array
(
[name] => Edward
[result] => 83
)
[1] => Array
(
[name] => William
[result] => 86
)
[2] => Array
(
[name] => Oliver
[result] => 77
)
)
)
)
)
[3] => Array
(
[university] => Array
(
[name] => Tes Name
[address] => Street name
[province] => Province name
)
[college] => Array
(
[name] => Design Graphics
)
[examDate] => 2019-01-20
[lesson] => Array
(
[lessonId] => Array
(
[lessonIdNumber] => 42
)
)
[sessionName] => Coreldraw
[teacherData] => Array
(
[teacherName] => Teacher Name Three
[teacherId] => 327718
)
[countStudent] => 2
[examResult] => Array
(
[0] => Array
(
[studentGender] => Female
[studentName] => Array
(
[0] => Array
(
[name] => Isabel
[result] => 77
)
[1] => Array
(
[name] => Dorothi
[result] => 86
)
)
)
)
)
)
）
我希望我的问题清楚并得到解决。谢谢您的协助。
答案 0 :(得分：1)
这就是您所要求的...
$lessonData = $data['lessonData'];
$studentData = $data['studentData'];
$lessons = array();
foreach ($lessonData as $lessonDat)
{
$lessons[$lessonDat['lessonId']['lessonIdNumber']] = $lessonDat;
}
foreach ($studentData as $id=>$studentDat) {
$studentData[$id]['sessionName'] = $lessons[$studentDat['lesson']['lessonId']['lessonIdNumber']]['sessionName'];
$studentData[$id]['teacherData'] = $lessons[$studentDat['lesson']['lessonId']['lessonIdNumber']]['teacherData'];
}
unset($data['lessonData']);
我当然希望这是工作，而不是编码工作。对于新手程序员而言，这是一项非常艰巨的任务，但听起来像是一项很棒的学校作业。
如果是这样，我建议您仅使用它来检查您的工作，否则希望对您有所帮助。祝你好运！
答案 1 :(得分：1)
另一种方法是将课程号最初映射到课程数据。让我们这样尝试吧，
$student = $data['studentData'];
$lesson = $data['lessonData'];
$expected = [];
# mapping the lession id to lession data e.g 40=>[sessionName=>'Coreldraw','teacherData'=>[array]]
foreach($lesson as $key=>$value){
$mapped[$value['lessonId']['lessonIdNumber']] = ['sessionName'=>$value['sessionName'],'teacherData'=>$value['teacherData']];
}
foreach($student as $k=>$v){
$lesson_id = $v['lesson']['lessonId']['lessonIdNumber'];
if(array_key_exists($lesson_id, $mapped)){
$expected['studentData'][$k] = array_merge($student[$k], $mapped[$lesson_id]);
}
}
print_r($expected);
工作演示： https://3v4l.org/9JW3J