我希望用嵌套循环将多个记录保存在一个from中，如下所示。
<?php
foreach($students as $student){
foreach($student->$subjects as $subjects){
<input name="grade[]" value="" />
}
}
?>
如何构造post['record']以下？
[records] => array(3) {
[0]=> array(3) {
["'student_id'"] => string(1) "1", ["'subject_id'"] => string(1) "4", ["'grade'"] => string(1) "A"
},
[1]=> array(3) {
["'student_id'"] => string(1) "1", ["'subject_id'"] => string(1) "2", ["'grade'"] => string(1) "B"
},
[2]=> array(3) {
["'student_id'"] => string(1) "2", ["'subject_id'"] => string(1) "3", ["'grade'"] => string(3) "A+"
}
}
你需要这样的东西吗：
$st = $student->id;
$su = $subject->id;
echo '<input type="text" name="grades[' . $st . '][' . $su . ']" value="" />';
然后，在接收POST的PHP脚本中，您可以访问如下等级：
foreach ( $_POST['grades'] as $student_id => $student_grades ) {
foreach ( $student_grades as $subject_id => $grade ) {
echo "student id: $student_id, ";
echo "subject id: $subject_id, ";
echo "grade: $grade <br>";
}
}
输出：
student id: 1, subject id: 4, grade: A
student id: 1, subject id: 2, grade: B
student id: 2, subject id: 3, grade: A+
你看起来像这样吗？我想你已经有元素了
表单部件
<?php
$students=array(
array('student_id'=>1,'subject_id'=>4),
array('student_id'=>1,'subject_id'=>2),
array('student_id'=>2,'subject_id'=>3),
);
foreach($students as $student){
echo('<input name="grade[]" value="">');
echo('<input type="hidden" name="records[]" value="'.serialize($student).'">');
}
?>
提交后
<?php
$records=unserialize($_POST['records']);
$grades=$_POST['grade'];
// now mix both
$i=0;
foreach($grades as $grade) {
$records[$i]['grade']=$grade;
$i++;
}
print_r($records);
?>