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Simple XML Element Builder (Proxies to SimpleXMLElement class)
<?php
use \SimpleXMLElement;
use \BadMethodCallException;
class XmlElement
{
/**
* The default XML DOCTYPE.
*
* @var string
*/
const DOCTYPE = '<?xml version="1.0" encoding="UTF-8"?>';
/**
* The internal SimpleXMLElement.
*
* @var SimpleXMLElement
*/
private $element;
/**
* Create a new element.
*
* @param $name
*/
public function __construct($name)
{
$xml = static::DOCTYPE;
$xml .= '<' . $name . '></' . $name . '>';
$this->element = new SimpleXMLElement($xml);
}
/*
* Proxy methods to the underlying SimpleXMLElement.
*
* @param string $method
* @param mixed $args
* @return mixed
* @throw \BadMethodCallException
*/
public function __call($method, $args)
{
if (method_exists($this->element, $method)) {
return call_user_func_array([$this->element, $method], $args);
}
throw new BadMethodCallException(sprintf('The method "%s" does not exist', $method));
}
/**
* Return the XML, but strip out the DOCTYPE first.
*
* @param null $filename
* @return mixed
*/
public function asXML($filename = null)
{
$xml = $this->element->asXML();
if (! $xml) {
return false;
}
$xml = trim(str_replace(static::DOCTYPE, '', $xml));
if (! $filename) {
return $xml;
}
return file_put_contents($filename, $xml) > 0;
}
}
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