PHP : PHP 폼을 통해 xml 파일 편집

Question

이것은 내 XML 파일과 PHP 코드입니다. 학생에 관한 최신 정보를 수정합니다. 그러나 여러 학생이 있다면 어떻게 될까요? 첫 번째 학생 (John Doe) 만 편집 할 수 있습니다. 어떻게 두 번째 학생 정보를 편집 할 수 있으며 XML 파일에서도 변경됩니다. 이전 코드가 작동하지 않아 이전 게시물과 비교하여 코드를 단순화했습니다. 감사

<student> 
     <firstname>John</firstname> 
     <lasttname>Doe</lasttname> 
     <student_id>150334</student_id> 
     <gender>female</gender> 
     <dob>16-09-94</dob> 

     <email>Johndoe@gmail.com</email> 
     <mobilenumber>12345678</mobilenumber> 
     <address>xxx</address> 
     <cohort>cohort name</cohort> 
     <programme>Softwaree Engineering</programme> 
     <mode>FT</mode> 
    </student> 
    <student> 
     <firstname>firnstmae</firstname> 
     <lasttname>hahah</lasttname> 
     <student_id>150500</student_id> 
     <gender>female</gender> 
     <dob>24-03-96</dob> 

     <email>lol@hotmail.com</email> 
     <mobilenumber>57056242</mobilenumber> 
     <address>addressname</address> 
     <cohort>cohort name</cohort> 
     <programme>web developement</programme> 
     <mode>FT</mode> 
    </student> 
</students> 

<?php 

if(isset($_POST['submit'])) { 

$data=simplexml_load_file('studentdb.xml'); 

$data->item->firstname=$_POST['firstname']; 

$data->item->lasttname=$_POST['lastname']; 

$data->item->gender=$_POST['gender']; 

    $data->item->dob=$_POST['dob']; 

    $data->item->email=$_POST['email']; 
    $data->item->mobilenumber=$_POST['mobilenumber']; 
    $data->item->address=$_POST['address']; 
     $data->item->cohort=$_POST['cohort']; 
     $data->item->programme=$_POST['programme']; 
     $data->item->mode=$_POST['mode']; 


$handle=fopen("studentdb.xml","wb"); 
fwrite($handle,$data->asXML()); 
fclose($handle); 
} 

$data=simplexml_load_file('studentdb.xml'); 
$fName=$data->item->firstname; 
$lName=$data->item->lasttname; 
$gender=$data->item->gender; 
$dob=$data->item->dob; 
$email=$data->item->email; 
$mobileNo=$data->item->mobilenumber; 
$address=$data->item->address; 
$cohort=$data->item->cohort; 
$programme=$data->item->programme; 
$mode=$data->item->mode; 


?> 

<?php 

echo $fName . " "; 
echo $lName . " "; 
echo $gender . " "; 
echo $dob . " "; 
echo $email . " "; 
echo $mobileNo . " "; 
echo $address . " "; 
echo $cohort . " "; 
echo $programme . " "; 
echo $mode . " "; 
?> 

<form method="post"> 



    Firstname<input type="text" name="firstname" value="<?php echo $fName;?>" placeholder="firstname" pattern="[A-Z][a-z]+" title="Must start with capital letters!"required/> </br></br> 
    Lastname<input type="text" name="lastname" value="<?php echo $lName;?>"placeholder="lastname" pattern="[A-Z][a-z]+" title="Must start with capital letters!" required/></br></br> 
    gender 
    <input type="radio" name="gender" value="M" value="<?php echo $gender;?>"> Male 
    <input type="radio" name="gender" value="F" value="<?php echo $gender;?>"> Female<br><br> 
    dob<input type="date" name="dob" placeholder="dob" value="<?php echo $dob;?>" /> </br></br> 
    email<input type="text" name="email" placeholder="email" value="<?php echo $email;?>"/></br></br> 
    mobile No:<input type="text" name="mobilenumber" value="<?php echo $mobileNo;?>" placeholder="mobileno" pattern="5[0-9][0-9][0-9][0-9][0-9][0-9][0-9]" title="Must start with 5 followed by 7 digits" required/></br></br> 
    address<input type="text" name="address" placeholder="address" value="<?php echo $address;?>" title="Must start with capital letters!"required/></br></br> 
    cohort<input type="text" name="cohort" placeholder="cohort" value="<?php echo $cohort;?>" required /></br></br> 
    programme<input type="text" name="programme" placeholder="programme" value="<?php echo $programme;?>" required //></br></br> 
    mode<input type="radio" name="mode" value="FT" value="<?php echo $mode;?>"> Full-Time 
    <input type="radio" name="mode" value="PT"> Part-Time<br> 
    <br> 


<input name="submit" type="submit" /> 



</form> 

Answer 1

시도 대신 $data->item의 (n 번째 학생을위한 $data->student[n]) 초 첫 학생을위한 $data->student[0] 및 $data->student[1]를 사용합니다.