From ee77e63662c455494c501df760162575f15acdf8 Mon Sep 17 00:00:00 2001
From: Rowan Collins <git@rwec.co.uk>
Date: Sun, 2 Sep 2012 21:21:55 +0100
Subject: [PATCH] Initial prototype 20/08/2012 23:25

---
 simplexml_dump.php | 113 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 simplexml_dump.php

diff --git a/simplexml_dump.php b/simplexml_dump.php
new file mode 100644
index 0000000..e5e1419
--- /dev/null
+++ b/simplexml_dump.php
@@ -0,0 +1,113 @@
+<?php
+
+function simplexml_dump(SimpleXMLElement $sxml)
+{
+	$indent = "\t";
+
+	$dump = '';
+	// Note that the header is added at the end, so we can add stats
+	$dump .= '[' . PHP_EOL;
+
+	$item_index = 0;
+	while ( isset($sxml[$item_index]) )
+	{
+		$item = $sxml[$item_index];
+		$item_index++;
+
+		// It's surprisingly hard to find something which behaves consistently differently for an attribute and an element within SimpleXML
+		// The below relies on the fact that the DOM makes a much clearer distinction
+		if ( dom_import_simplexml($item) instanceOf DOMAttr )
+		{
+			$dump .= $indent . 'Attribute {' . PHP_EOL;
+
+			$ns = $item->getNamespaces(false);
+			if ( $ns )
+			{
+				$dump .= $indent . $indent . 'Namespace: \'' . reset($ns) . '\'' . PHP_EOL;
+				$dump .= $indent . $indent . 'Namespace Alias: \'' . key($ns) . '\'' . PHP_EOL;
+			}
+
+			$dump .= $indent . $indent . 'Name: \'' . $item->getName() . '\'' . PHP_EOL;
+			$dump .= $indent . $indent . 'Value: \'' . (string)$item . '\'' . PHP_EOL;
+
+			$dump .= $indent . '}' . PHP_EOL;
+		}
+		else
+		{
+			$dump .= $indent . 'Element {' . PHP_EOL;
+
+			$ns = $item->getNamespaces(false);
+			if ( $ns )
+			{
+				$dump .= $indent . $indent . 'Namespace: \'' . reset($ns) . '\'' . PHP_EOL;
+				if ( key($ns) == '' )
+				{
+					$dump .= $indent . $indent . '(Default Namespace)' . PHP_EOL;
+				}
+				else
+				{
+					$dump .= $indent . $indent . 'Namespace Alias: \'' . key($ns) . '\'' . PHP_EOL;
+				}
+			}
+
+			$dump .= $indent . $indent . 'Name: \'' . $item->getName() . '\'' . PHP_EOL;
+			$dump .= $indent . $indent . 'String Content: \'' . (string)$item . '\'' . PHP_EOL;
+
+			// Now some statistics about attributes and children, by namespace
+			$dump .= $indent . $indent . 'Structural Content:' . PHP_EOL;
+
+			// If the default namespace is not declared, it will never show up using the below code
+			// (This is probably bad XML, or at least bad practice, but the aim here is to leave nothing invisible)
+			if ( ! array_key_exists('', $item->getDocNamespaces()) )
+			{
+				$dump .= $indent . $indent . $indent . '[Default, Undeclared Namespace]' . PHP_EOL;
+
+				$dump .= $indent . $indent . $indent . $indent . 'Children: ' . count($item->children(NULL)) . PHP_EOL;
+				$dump .= $indent . $indent . $indent . $indent . 'Attributes: ' . count($item->attributes(NULL)) . PHP_EOL;
+			}
+
+			$all_ns = $item->getNamespaces(true);
+			foreach ( $all_ns as $ns_alias => $ns_uri )
+			{
+				$ns_label = (($ns_alias == '') ? '[Default Namespace]' : "Namespace $ns_alias");
+				$dump .= $indent . $indent . $indent . $ns_label . PHP_EOL;
+
+				$dump .= $indent . $indent . $indent . $indent . 'Namespace URI: \'' . $ns_uri . '\'' . PHP_EOL;
+				$dump .= $indent . $indent . $indent . $indent . 'Children: ' . count($item->children($ns_uri)) . PHP_EOL;
+				$dump .= $indent . $indent . $indent . $indent . 'Attributes: ' . count($item->attributes($ns_uri)) . PHP_EOL;
+			}
+
+			$dump .= $indent . '}' . PHP_EOL;
+		}
+	}
+	$dump .= ']' . PHP_EOL;
+
+	// Add on the header line, with the total number of items output
+	$dump = 'SimpleXML object (' . $item_index . ' item' . ($item_index > 1 ? 's' : '') . ')' . PHP_EOL . $dump;
+
+	echo $dump;
+}
+
+$x = <<<XML
+<?xml version="1.0"?>
+<foo xmlns="http://example.com" xmlns:a="http://example.com/a" xmlns:b="http://example.com/b">
+	<bar>some text</bar>
+	<bar>ooo <![CDATA[some cdata yaha!]]></bar>
+	<bar b:thing="Thing!" b:nowt="" />
+	<deeper bob="jane">
+		<a:bar />
+		<a:bar />
+	</deeper>
+</foo>
+XML;
+
+$sx = simplexml_load_string($x);
+
+simplexml_dump($sx);
+simplexml_dump($sx->children());
+simplexml_dump($sx->deeper);
+simplexml_dump($sx->deeper->children('a', true));
+simplexml_dump($sx->bar[2]->attributes('b', true));
+simplexml_dump($sx->deeper['bob']);
+
+