使用PHP將數據從表單傳輸到XML文件
[英]Transfer Data from form to XML file using PHP
問題描述
我正在為一個學校項目工作，所以不用說我是所有這方面的初學者。 我無法將表單數據傳遞到XML文件。 我正在收到
致命錯誤：從save-xml.php第53行調用非對象上的成員函數writeXML（）
指向我的define-classes.php 。 我已經在define-classes文件中定義了票證類。 我只是在寫一個幫助票證網站，用戶可以在其中輸入和查看票證。 下面是代碼。
<?php
// load required files
require "define-classes.php";
require "load-xml.php";
require "save-xml.php";
// save form to xml file
save_xml( $_POST, "tickets.xml", "append" );
?>
<link rel="stylesheet" href="site.css">
</head>
<body>
<?php include 'header.php'; ?>
<?php include 'nav.php'; ?>
<main>
<div class="row">
<div class="sidel">
</div>
<div class="main">
<h2>Create a New Ticket</h2>
<form name="newTicket" action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST">
<fieldset id="custInfo">
<legend><h3>Customer Information</h3></legend>
<label>First Name:<br>
<input type="text" name="fname" id="fname" size="40" required></label>
<br>
<label>Last Name: <br>
<input type="text" name="lname" id="lname" size="40" required></label>
<br>
<label>Phone: <br>
<input type="text" name="phone" id="phone" size="40" required></label>
<br>
<label>School / Building: <br>
<input type="text" name="loc" id="loc" size="40" required></label>
<br>
<label>Room Number: <br>
<input type="text" name="room" id="room" size="40" required></label>
</fieldset>
<fieldset id="devInfo">
<legend><h3>Device Information</h3></legend>
Device Type: <br>
<select size="1" name="device" id="device" required>
<option size="30" value="">Select Device </option>
<option value="Laptop">Laptop</option>
<option value="Desktop">Desktop</option>
<option value="Touch TV">Touch TV</option>
<option value="Projector">Projector</option>
<option value="Phone">Phone</option>
<option value="iPad">iPad</option>
<option value="Chromebook">Chromebook</option>
</select>
<br>
<label>Manufacturer: <br>
<input type="text" name="manu" id="manu" size="40"></label>
<br>
<label>Model:<br>
<input type="text" name="model" id="model" size="40"></label>
<br>
<label>Serial Number: <br>
<input type="text" name="serial" id="serial" size="40"></label>
<br><br><br>
</fieldset>
<fieldset id="description">
<legend>Description</legend>
Let Us Know What You Are Experiencing:<br>
<textarea name="comments" id="comments" cols="60" rows="10" required>Enter the Description of your Ticket here!</textarea>
<input type="hidden" name="status" value="open">
<input type="submit" value="Create New Ticket">
<input type="reset" value="Clear Form">
</fieldset>
</form>
</div>
<div class="sider">
</div>
</div>
</main>
<?php include 'footer.php' ?>
</body>
</html>
定義文件
// Define the tickets class
class ticket
{
// required id property
var $id;
// define sub properties
var $fname;
var $lname;
var $phone;
var $loc;
var $room;
var $device;
var $manu;
var $model;
var $serial;
var $status;
var $comments = array();
// constructor
function ticket ($newID)
{
$this->id = $newID;
}
// convert object to XML string
function writeXML()
{
// Define some special characters to help format output
$tab = "\t";
$newline = "\n";
// opening tag
$xml_string = $newline . $tab . '<ticket id="' . $this->id . '">' . $newline;
// sub tags
$xml_string .= $tab . $tab . '<fname>' . $this->fname . '</fname>' . $newline;
$xml_string .= $tab . $tab . '<lname>' . $this->lname . '</lname>' . $newline;
$xml_string .= $tab . $tab . '<phone>' . $this->phone . '</phone>' . $newline;
$xml_string .= $tab . $tab . '<loc>' . $this->loc . '</loc>' . $newline;
$xml_string .= $tab . $tab . '<room>' . $this->room . '</room>' . $newline;
$xml_string .= $tab . $tab . '<device>' . $this->device . '</device>' . $newline;
$xml_string .= $tab . $tab . '<manu>' . $this->manu . '</manu>' . $newline;
$xml_string .= $tab . $tab . '<model>' . $this->model . '</model>' . $newline;
$xml_string .= $tab . $tab . '<serial>' . $this->serial . '</serial>' . $newline;
$xml_string .= $tab . $tab . '<status>' . $this->status . '</status>' . $newline;
// loop for comments array
foreach ($this->comments as $comments)
{
$xml_string .= $tab . $tab . '<comments>' . $comments . '</comments>' . $newline;
}
// closing tag
$xml_string .= $tab . '</ticket>' . $newline;
// return xml string
return $xml_string;
}
// function to add data to properties
function addData ($prop, $new_value)
{
// convert property to lower case
$prop = strtolower($prop);
// check if the property has been defined as an array
if ( is_array($this->$prop) )
{
// if array add a new element to the end of the array
$temp_array = array( $new_value );
$this->$prop = array_merge ( $this->$prop, $temp_array );
}
else
$this->$prop = $new_value;
}
}
?>
保存文件
<?php
// You can call the function save_xml() to output an array of objects into
// a file in XML format. The function requires three arguments.
// The first argument should be the name of the PHP array to save.
// The second argument is the name of the XML file to save the content in.
// The third argument should be either "overwrite" or "append", depending on
// whether you wish to replace the existing file with just the contents
// of the current array, or if you want to add the contents of the current
// array to the end of the existing file.
function save_xml ($object_array, $filename, $type_of_save)
{
// if you are appending data, open the existing file and remove the
// closing root tag so that more data objects can be appended.
if ($type_of_save == "append")
{
// read in the old contents as a single string
$old_file_contents = file_get_contents($filename);
if (!$old_file_contents)
{
die("Error opening file $filename!");
}
// find the position of the closing root tag, and if found,
// make a substring starting at the beginning and ending
// before the closing root tag, then output it back to the file.
$end_tag_position = strpos( $old_file_contents, "</$filename>");
if (!$end_tag_position === false)
{
$new_file_contents = substr( $old_file_contents, 0, $end_tag_position );
file_put_contents($filename, $new_file_contents);
}
// re-open the file to append new content.
$fp = fopen($filename, "a+b");
if (!$fp) { die("Error opening file $filename."); }
}
else
{
// if the type_of_save is not append, open the file and overwrite it.
$fp = fopen($filename, "w+b");
if (!$fp) { die("Error opening file $filename."); }
// output the XML declaration and the opening root element tag.
write_line($fp, "<?xml version=\"1.0\"?>\n\n");
write_line($fp, "<$filename>\n");
}
// output the array objects to the file, using the writeXML method of the class.
foreach ($object_array as $current_object)
{
write_line($fp, $current_object->writeXML());
}
// output the closing root tag
write_line($fp, "\n</$filename>");
fclose($fp);
}
// This function writes the content to the specified file, and provides
// an error message if the operation fails.
function write_line ($fp, $line)
{
if (!fwrite($fp, $line))
die ("Error writing to file!");
}
// The function file_put_contents from the PHP web site does not exist
// in our server's version of PHP. This creates it.
if (!function_exists('file_put_contents'))
{
define('FILE_APPEND', 1);
function file_put_contents($filename, $content, $flags = 0)
{
if (!($file = fopen($filename, ($flags & FILE_APPEND) ? 'a' : 'w')))
return false;
$n = fwrite($file, $content);
fclose($file);
return $n ? $n : false;
}
}
?>
和XML文件
<tickets.xml>
</tickets.xml>
1 個解決方案
解決方案1
0 已采納 2018-04-16 23:25:08
談論重新發明輪子，我嘗試使用上面的代碼，因為大多數代碼是由我的講師提供給我們並入的，但是，我發現這並不是因為三個簡單的php命令允許我追加到我的代碼中XML沒問題。 我最終混合使用了CreateElement（），appendChild（）和createAttribute（）。 謝謝你們和我一起看這個。
使用Ajax和PHP從HTML表單在外部XML文件中添加新數據
[英]Add new data from HTML form in external XML file using Ajax and PHP
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