ddimaria / Laravel-REST-CMS

app/Library/Xml.php

<?php 

namespace App\Library;

class Xml
{
	/**
	 * xml
	 * @var string
	 */
	protected $xml;

	/**
	 * XSD validation errors
	 * @var array
	 */
	protected $errors;

	/**
	 * Constructor
	 *
	 * @param string $xml
	 */
	public function __construct($xml = '')
	{
		$this->xml = $xml;
	}

	/**
	 * Gets all XML files from a remote folder
	 * 
	 * @param  string $xml 
	 * @return array
	 */
   	public function toArray($xml)
   	{    	
		$xml = $xml ?: $this->xml;
		//$array = json_decode(str_replace('{"0":" "}','null', json_encode(simplexml_load_string($xml),JSON_NUMERIC_CHECK)), true);

65% of this comment could be valid code. Did you maybe forget this after debugging?

		$array = json_decode(str_replace('{"0":" "}', 'null', json_encode(simplexml_load_string($xml))), true);
		$this->filterEmptyArray($array);

		return $array;
  	}

	/**
	 * Replace data in a node
	 * 
	 * @param  string $xml 
	 * @param  string $node 
	 * @param  string $find 
	 * @param  string $replace 
	 * @return string
	 */
	public function replaceInNode($xml, $node, $find, $replace)
	{       
		return preg_replace_callback('@(<' . $node . '>)' . $find . '(</' . $node . '>)@s', function($matches) use ($replace) {
			return str_replace(' ', $replace, $matches[0]);
		}, $xml);
	}

	/**
	 * Converts an xml string into a SimpleXml object
	 * 
	 * @param  string $xml 
	 * @return \SimpleXMLElement|false
     */
	public function toXml($xml, $namespace = null)
	{       
		$xml = $xml ?: $this->xml;

		libxml_use_internal_errors(true);
		$xmlDoc = simplexml_load_string($xml, null, 0, $namespace, !is_null($namespace));
        
		if ($xmlDoc === false) {
			$this->errors = libxml_get_errors();
            
			return false;
		}

		return $xmlDoc;    
	}

	/**
	 * Get an array of attributes from an XML node
	 * @param  \SimpleXMLElement  $node
	 * @return array
	 */
	public static function attributes($node)
	{
		return current($node->attributes());
	}

	/**
	 * Validates an xml string against
	 * @param  string $xml     
	 * @param  string $xsdPath
	 * @return bool
	 */
	public function validate($xsdPath, $xml = null)
	{
		$xml = $xml ?: $this->xml;

		libxml_use_internal_errors(true);
		$xmlDoc = new \DOMDocument(); 
		$xmlDoc->loadXML($xml);
        
		if (!$xmlDoc->schemaValidate($xsdPath)) {
            
			$this->errors = libxml_get_errors();
            
			return false;
		}

		return true;
	}

	/**
	 * Validates an xml string against
	 * @param  bool $compact
	 * @return array
	 */
	public function getErrors($compact = true)
	{
		$errors = [];

		if (!$compact) {
			$errors = $this->errors;
		} else {

			foreach ($this->errors as $error) {
				$errors[] = $error->message;
			}
		}

		return $errors;
	}

	/**
	 * Converts empty array nodes into empty strings to corredt the toArray() side effect
	 * 
	 * @param  array  &$array
	 */
	public function filterEmptyArray(array &$array) 
	{
		foreach ($array as $key=>&$val) {
			if (empty($val)) {
				$array[$key] = "";
			} else {
				is_array($val) && $this->filterEmptyArray($val);
			}
		}
	}
}