php - 在 XAMPP 上使用 PHP 创建 XML 数据文件在 Mac 上不起作用（显示空白页）
问题描述
我正在尝试在 XML 文件中添加一些数据。但是，这些代码在 Windows 上运行良好，但在 mac XAMPP 上却无法运行。我已经发布了下面的代码。点击“添加产品按钮”后，显示
test.php:1 POST http://localhost/xampp/test/test.php 500（内部服务器错误）
我不知道是因为 Mac 上的 XAMPP，还是因为代码。
<!-- // php for adding to xml file, it will create a new file called pro.xml
// in case you dont already have this file,
// or it will add new product to it if you already have this file. -->
<?php
function debug_to_console($data) {
$output = $data;
if (is_array($output))
$output = implode(',', $output);
echo "<script>console.log('Debug Objects: " . $output . "' );</script>";
}
$errors = array();
if(isset($_POST['add'])){
$name = preg_replace('/[^A-Za-z0-9]/', '', $_POST['name']);
$id = $_POST['id'];
$price = $_POST['price'];
if($name == ''){
$errors[] = 'product Name is blank';}
if($id == ''){
$errors[] = 'product id is blank';}
if($price == ''){
$errors[] = 'price is blank';
}
if(count($errors) == 0){
if(file_exists('pro.xml')){ //new
//open an already exsisted xml file
$xml = new DOMDocument();
$xml->load('pro.xml');
//getting the root.
$root = $xml->getElementsByTagName('root')->item(0);
//adding product to the same file.
$product = $xml-> createElement('product');
$root->appendChild($product);
$name = $xml-> createElement('name');
$product->appendChild($name);
$name_txt = $xml -> createTextNode($_POST['name']);
$name-> appendChild($name_txt);
$Atr = $xml-> createAttribute('id');
$name->appendChild($Atr);
//append it to the name tag.
$Atr_txt=$xml->createTextNode($_POST['id']);
$Atr->appendChild($Atr_txt);
$price = $xml -> createElement('price');
$product->appendChild($price);
$price_txt = $xml-> createTextNode( $_POST['price']);
$price->appendChild($price_txt);
// adding this new product to the xml file now.
$xml->formatOutput= true;
$xml-> save('pro.xml');
echo" product ". $_POST['name'] . " has been added sucsessfully!!";
header('Refresh:2;url=test.php');
die;
}// for if.
else{//new
$xml = new DOMDocument('1.0');
// create a root tag.
$root= $xml->createElement('root');
$xml->appendChild($root);
$xml->formatOutput= true;
$xml->save('pro.xml');
//open an already exsisted xml file
$xml = new DOMDocument();
$xml->load('pro.xml');
//getting the root.
$root = $xml->getElementsByTagName('root')->item(0);
//adding product to the same file.
$product = $xml-> createElement('product');
$root->appendChild($product);
$name = $xml-> createElement('name');
$product->appendChild($name);
$name_txt = $xml -> createTextNode($_POST['name']);
$name-> appendChild($name_txt);
$Atr = $xml-> createAttribute('id');
$name->appendChild($Atr);
//append it to the name tag.
$Atr_txt=$xml->createTextNode($_POST['id']);
$Atr->appendChild($Atr_txt);
$price = $xml -> createElement('price');
$product->appendChild($price);
$price_txt = $xml-> createTextNode( $_POST['price']);
$price->appendChild($price_txt);
// adding this new product to the xml file now.
$xml->formatOutput= true;
$xml-> save('pro.xml');
echo" new products file has been added, and";//new
echo" product ". $_POST['name'] . " has been added sucsessfully!!";
header('Refresh:4;url=test.php');//new
die;//new
}//new for else.
}//new if(count($errors)
}//if(isset($_POST['add']))
?>
<!-- ============= end of addind to xml file ============= -->
<!-- this will delete a specific product from the xml file if the file exsists,
and it will echo a msg if the file doesnt exsist.-->
<?php
$errors = array();
if(isset($_POST['remove'])){
$name = preg_replace('/[^A-Za-z0-9]/', '', $_POST['name']);
$id = $_POST['id'];
// $price = $_POST['price'];
if($name == ''){
$errors[] = 'product Name is blank';}
if($id == ''){
$errors[] = 'product id is blank';}
// if($price == ''){
// $errors[] = 'price is blank';
// }
if(count($errors) == 0){
if(file_exists('pro.xml')){
$xml1 = simplexml_load_file('pro.xml');
function delete($id,$filename='pro.xml'){
$data = simplexml_load_file($filename);
for ($i=0,$length = count($data->product);$i<$length; $i++){
if($data->product[$i]->name==$id){
unset($data->product[$i]);
echo" product ". $_POST['name'] . " has been deleted sucsessfully!!";
header('Refresh:3;url=test.php');//new
break;
}
else{
echo" the product that you are trying to delete doesnt exsist in this folder!!";
header('Refresh:3;url=test.php');//new
break;
}
}//end of for loop.
file_put_contents($filename,$data->saveXML());
}// end of function delete.
delete($_POST['name']);
die;//new
}// for this if(file_exists('pro.xml').
else{
echo" the file you are trying to delete from doesnt exsist!!";
}
}// for this if(count($errors) == 0).
}// if(isset($_POST['remove']).
?>
<!-- ============= end of deletion from xml file ============= -->
<!DOCTYPE html>
<html >
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>User Sign Up</title>
</head>
<body>
<!-- //============ adding form ============================== -->
<form class="main-container" method="post" action="">
<?php
if(count($errors) > 0){
echo '<ul>';
foreach($errors as $e){
echo '<li>' . $e . '</li>';
}
echo '</ul>';
}
?>
<div style="display: flex; flex-flow: column;">
<div class="input-container">
<h2>add a product</h2>
</div>
<div class="input-container">
<input type="text" name="name" placeholder="product Name" size="10">
</div>
<div class="input-container">
<input type="text" name="id" placeholder="product id" size="10">
</div>
<div class="input-container">
<input type="number" name="price" placeholder="price" size="20">
</div>
<div class="input-container">
<button type="submit" name="add" value="add" >add product</button>
</div>
</form>
<!-- //============== deletion form ======================= -->
<form class="main-container" method="post" action="">
<?php
if(count($errors) > 0){
echo '<ul>';
foreach($errors as $e){
echo '<li>' . $e . '</li>';
}
echo '</ul>';
}
?>
<div style="display: flex; flex-flow: column;">
<div class="input-container">
<h2>delete a product</h2>
</div>
<div class="input-container">
<input type="text" name="name" placeholder="product Name" size="10">
</div>
<div class="input-container">
<input type="text" name="id" placeholder="product id" size="10">
</div>
<!--
<div class="input-container">
<input type="number" name="price" placeholder="price" size="20">
</div> -->
<div class="input-container">
<button type="submit" name="remove" value="remove" >remove product</button>
</div>
</form>
<style>
html body {
margin: 0;
padding: 0;
display: flex;
flex-flow: column;
}
.main-container {
max-width: 900px;
width: 900px;
display: flex;
margin: auto;
flex-flow: column;
}
.column-container {
display: flex;
flex-flow: row;
justify-content: space-around;
}
.input-container {
display: flex;
justify-content: center;
border-radius: 25px 25px 25px 25px;
}
input {
width: 175px;
height: 30px;
margin-top: 1rem;
border-radius: 15px 15px 15px 15px;
}
button {
width: 150px;
height: 30px;
margin-top: 1rem;
background-color: rgb(32, 92, 202);
color: whitesmoke;
border-radius: 20px 20px 20px 20px;
}
</style>
</body>
</html>解决方案
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