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94 lines
2.0 KiB
PHP
Executable File
94 lines
2.0 KiB
PHP
Executable File
<?php
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/** @file xml_tree.php
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* @brief XML Tree example
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* @ingroup Examples
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* @author Marcus Boerger
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* @date 2003 - 2006
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* @version 1.0
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*
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* Usage: php xml_tree.php \<file\> [\<len\>]
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*
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* Simply specify the xml file to tree with parameter \<file\>.
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* The second parameter allows to output a maximum of \<len\> characters of
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* the element or attribute value.
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*/
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if ($argc < 2) {
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echo <<<EOF
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Usage: php ${_SERVER['PHP_SELF']} <file>
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Displays a graphical tree for the elements in <file>.
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<file> The file for which to generate the tree graph.
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<len> Max length to display for attribute and element content (default: 0).
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EOF;
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exit(1);
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}
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if (!class_exists("RecursiveTreeIterator", false)) require_once("recursivetreeiterator.inc");
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/** @ingroup Examples
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* @brief Generates a structure for a XML file
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* @version 1.0
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*/
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class SimpleXmlStructure extends AppendIterator implements RecursiveIterator
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{
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/** @param xml object of class SimpleXmlStructure or XML file name to open.
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*/
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function __construct($xml)
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{
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parent::__construct();
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$xml = is_object($xml) ? $xml : $xml = simplexml_load_file($xml, 'SimpleXmlIterator');
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$this->append($xml);
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$this->append($xml->attributes());
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}
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function key()
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{
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return ($this->getIteratorIndex() ? '@' : '') . parent::key();
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}
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function hasChildren()
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{
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return $this->getInnerIterator()->hasChildren()
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|| !$this->getIteratorIndex();
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}
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function getChildren()
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{
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$inner = $this->getInnerIterator();
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return $this->getIteratorIndex()
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? $inner->getChildren()
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: new SimpleXmlStructure($inner->getChildren());
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}
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function current()
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{
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global $len;
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if ($len)
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{
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$val = substr(parent::current(), 0, $len);
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$nws = preg_replace("/([\r\n]|\s\s+)/e", " ", $val);
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return ($this->getIteratorIndex() ? '= ' : ': ') . $nws;
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}
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else
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{
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return '';
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}
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}
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}
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$xml = new SimpleXmlStructure($argv[1]);
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$it = new RecursiveTreeIterator($xml, RecursiveTreeIterator::BYPASS_CURRENT);
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$len = isset($argv[2]) ? $argv[2] : 0;
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foreach($it as $c=>$v)
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{
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echo "$c$v\n";
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}
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?>
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