PHP/XML - 修复编写脚本 [关闭]

Question

我是 Lighty，一个新的程序员和学生，我现在正在学习一个小教程，读取一个 XML 文件并用 PHP 显示它，我自己想做的一件事就是将数据写入我的 XML 文件，来自一个 PHP 脚本，使用 HTML 中的表单，我的脚本和表单如下所示：

<?php

    echo ('Script started');

    ///making sure the script only works when posted
    if ($_SERVER["REQUEST_METHOD"] == "POST") {

        echo ('-Post accepted');

        //Load XML File into variable
        $xml = simplexml_load_file("phptest3.xml");
        echo ('-XML Loaded');

        //Connect form to Variables 
        $name = $_POST['name'];
        $age = $_POST['age'];
        $sex = $_POST['sex'];
        $comment = $_POST['comment'];
  echo ('-Vars connected');

  //Function to strip items that are not needed to prevend XSS/Injections
        function test_input($data) {
            $data = trim($data);
            $data = stripslashes($data);
            $data = htmlspecialchars($data);
            return $data;
        }
  echo ('-Injections stripped');

        //Create new children in XML file and Connect the from data to the corresponding XML entries
        $xml->people[0];
        $xml->people->addChild('person');
        $xml->person[0];
        $xml->person->addChild('name', $name);
        $xml->person->addChild('age', $age);
        $xml->person->addChild('sex', $sex);
        $xml->person->addChild('comment', $comment);
        echo ('-Data inserted');

        //Save current data to XML file...
        $xml->savexml('phptest3.xml');
        echo ('-saved');
    }

    echo ('-Script ended.');

?>

虽然我的 XML 看起来像这样

<?xml version="1.0"?>
<people>
<person>
    <name>Lighty</name>
    <age>17</age>
    <sex>M</sex>
    <comment>iets</comment>
    <name>iets</name><age>75</age><sex>F</sex><comment>igjk</comment>       <name>iets</name><age>75</age><sex>M</sex><comment>gergsrh</comment></person>
</people>

现在，它现在确实插入了数据，但它把它放在了不应该放的地方：/

Answer 1

没有像 save() 这样的 simplexml 方法。您可以改用 saveXML。

$_POST['name'] = 'testName';
$_POST['age'] = '15';
$_POST['sex'] = 'F';
$_POST['comment'] = 'test comment';
//Load XML File into variable
$xml = simplexml_load_file("test.xml");

//Connect form to Variables 
$name = $_POST['name'];
$age = $_POST['age'];
$sex = $_POST['sex'];
$comment = $_POST['comment'];

//Create new children in XML file and Connect the from data to the corresponding XML entries    
$xml->program = "";
$xml->program->addChild('name', $name);
$xml->program->addChild('age', $age);
$xml->program->addChild('sex', $sex);
$xml->program->addChild('comment', $comment);

//Save current data to XML file...
$xml->saveXML('test.xml');

test.xml：

<?xml version="1.0"?>
<people>

<person>
    <name>Lighty</name>
    <age>17</age>
    <sex>M</sex>
    <comment>eyayayayaya</comment>
</person>

<program><name>testName</name><age>15</age><sex>F</sex><comment>test comment</comment></program></people>

编辑：

你说你有一个错误，你为什么不发布它？因为当我试图执行你的脚本时，我得到了一个很明显的错误Fatal error: Call to undefined method SimpleXMLElement::save()。