Given a PicaPlus XML DomDocument this function parses the DomDocument into an php array

picaplusxml2Array.php

<?php
	/**
	 * parse an picaplusxml record into an array
	 * @param	object	$dom: domcument
	 * @return array	picaplusArray
	 */
	function picaplusxml2Array(DomDocument $dom){
		$numberOfRecords = $dom->getElementsByTagNameNS('http://www.loc.gov/zing/srw/', 'numberOfRecords');
		$this->numberOfRecords = $numberOfRecords->item(0)->nodeValue; 
		$picaplusArray = array();
		$parentName = '';
		$records = $dom->getElementsByTagNameNS('http://www.oclcpica.org/xmlns/ppxml-1.0', 'record');
		$x = 0;
		foreach($records as $record) {
			$i = 0;
			foreach ($record->getElementsByTagNameNS('http://www.oclcpica.org/xmlns/ppxml-1.0', 'tag') as $element) {
	
				if($element->hasAttribute('id')){
					// field / tag
					$parentName = $element->getAttributeNode('id')->nodeValue;
					$picaplusArray[$x][$parentName][] = array();
					foreach($element->getElementsByTagNameNS('http://www.oclcpica.org/xmlns/ppxml-1.0', 'subf') as $child){
						$elementArray = array();
						$nodeId = $child->getAttributeNode('id')->nodeValue;
						$elementArray[$nodeId] = $child->nodeValue;
						$count = count($picaArray[$x][$parentName])-1;
						array_push($picaplusArray[$x][$parentName][$count],$elementArray);
					}
				}
				$i++;
			}
			$x++;
		}
	
		//print_r($picaplusArray);
		return $picaplusArray;
	}
?>