PHP Variable into a Xml Request String

Echoing PHP Variable inside XML

Just concatenate the string

$post_string = '

<?xml version="1.0" encoding="UTF-8" ?>

<Ping vid="" sid="">                   
   <ProjectInfo>
      <ProjectId>' . $projectid . '</ProjectId>
      <SubProject></SubProject>
   </ProjectInfo>
 </Ping>

 ';

how to provides xml request as variable in php

PHP is parsing $SysName:XML as a variable. If you want to send the literal string '$$SysName:XML' you need to escape every dollar sign in the XML string like this:

<SVEXPORTFORMAT> \$\$SysName:XML </SVEXPORTFORMAT>

Load PHP variables into XML file

You don't create the initial XML file, the library you are using creates it for you.

XML DOM is a fine choice for this job.

$xml = new DOMDocument();                                  # Create a document
$xml_firstname = $xml->createElement("firstname", "Over"); # Create an element
$xml_lastname = $xml->createElement("lastname", "Coder");  # Create an element
$xml->appendChild($xml_firstname);                         # Add the element to the document
$xml->appendChild($xml_lastname);                          # Add the element to the document
$xml->save("myfancy.xml");                                 # Save the document to a file

The output would be

<?xml version="1.0" encoding="utf-8"?>
<firstname>Over</firstname>
<lastname>Coder</lastname>

Inserting Query String Variables in XML using PHP/curl

The string definition is bad
use this

$xml = "<xmlrequest>
<details>
    <emailaddress>{$email}</emailaddress>
    <mailinglist>8</mailinglist>
    <format>html</format>
    <confirmed>no</confirmed>
</details>
</xmlrequest>";

or this

$xml = '<xmlrequest>
<details>
    <emailaddress>' . $email . '</emailaddress>
    <mailinglist>8</mailinglist>
    <format>html</format>
    <confirmed>no</confirmed>
</details>
</xmlrequest>';

Because this variable probably can be various string I think it's better if you use <![CDATA[]]> section around the email.

Insert PHP variables into CURL XML post

You are using simple quotes ' in the XML string construction. Inside the simple quotes, the variables aren't interpreted. You must encapsulate your XML string inside double quotes " or concat the variable in your string.

<?php
$s = 'a string';
echo '$s'; // Show $s
echo "$s"; // Show a string

Example on your string with concatenation :

$unauth = 'attribute value';
$xml_data = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<TipsApiRequest xmlns="http://www.avendasys.com/tipsapiDefs/1.0">
    <TipsHeader version="3.0"/>
    <Endpoints>
        <Endpoint status="Known" macAddress="'.$unauth.'">
            <EndpointTags tagName="unauthorized" tagValue="true"/>
        </Endpoint>
    </Endpoints>
</TipsApiRequest>';

You can also use HEREDOC string construction which interprete variables inside :

$unauth = 'attribute value';
$xml_data = <<<XML
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<TipsApiRequest xmlns="http://www.avendasys.com/tipsapiDefs/1.0">
    <TipsHeader version="3.0"/>
    <Endpoints>
        <Endpoint status="Known" macAddress="$unauth">
            <EndpointTags tagName="unauthorized" tagValue="true"/>
        </Endpoint>
    </Endpoints>
</TipsApiRequest>
XML;

Also you must validate POST data using the PHP filters function to avoid code injection in your XML request.

Passing PHP variables to XML in a .php file

You don't use DOM this way. You use the DOM API to create the entire document:

$doc   = new DOMDocument();
$books = $doc->createElement( "books" );
$doc->appendChild( $books );
// ...

See:

• http://www.ibm.com/developerworks/library/os-xmldomphp/
• http://www.tonymarston.net/php-mysql/dom.html
• https://web.archive.org/web/1/http://articles.techrepublic%2ecom%2ecom/5100-10878_11-6141415.html

---

A more verbose example (generating XHTML with DOM)

// Create head element
$head = $document->createElement('head');
$metahttp = $document->createElement('meta');
$metahttp->setAttribute('http-equiv', 'Content-Type');
$metahttp->setAttribute('content', 'text/html; charset=utf-8');
$head->appendChild($metahttp);

See this tutorial on how to use DOM for XHTML. For reuse of code, you can write your own classes extending DOM classes to get configurable components.

---

If you don't want to use DOM or want to use plain text for generating the XML, just approach it like any other template, e.g.

<root>
    <albums>
        <album id="<?php echo $albumId; ?>">
            <title><?php echo $title; ?></title>
            ... other elements ...
        </album>
    </albums>
</root>

---

Related Topics