/[cvs]/nfo/php/libs/net.php.pear/Tree/docs/Memory_XML.php
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Revision 1.1 - (hide annotations)
Thu Feb 27 16:53:26 2003 UTC (21 years, 6 months ago) by joko
Branch: MAIN
+ added doc/, from PEAR

1 joko 1.1 <?php
2     //
3     // Id: Memory_XML.php,v 1.2 2003/01/30 17:43:41 cain Exp
4     // $Id: Memory_XML.php,v 1.2 2003/01/30 17:43:41 cain Exp $
5     //
6    
7     //ini_set('include_path',realpath(dirname(__FILE__).'/../../').':'.realpath(dirname(__FILE__).'/../../../includes').':'.ini_get('include_path'));
8     //ini_set('error_reporting',E_ALL);
9     /**
10     * this is a helper function, so i dont have to write so many prints :-)
11     * @param array $para the result returned by some method, that will be dumped
12     * @param string $string the explaining string
13     */
14     function dumpHelper( $para , $string='' )
15     {
16     global $tree;
17    
18     print '<i><u><font color="#008000">'.$string.'</font></u></i><br>';
19     // this method dumps to the screen, since print_r or var_dump dont
20     // work too good here, because the inner array is recursive
21     // well, it looks ugly but one can see what is meant :-)
22     $tree->varDump($para);
23     print '<br>';
24    
25     }
26    
27     /**
28     * dumps the entire structure nicely
29     * @param string $string the explaining string
30     */
31     function dumpAllNicely( $string='' )
32     {
33     global $tree;
34    
35     print '<i><u><font color="#008000">'.$string.'</font></u></i><br>';
36     $all = $tree->getNode(); // get the entire structure sorted as the tree is, so we can simply foreach through it and show it
37     foreach( $all as $aElement )
38     {
39     for( $i=0 ; $i<$aElement['level'] ; $i++)
40     print '&nbsp; &nbsp; ';
41     print '<b>'.$aElement['name'].'</b> ===&gt; ';
42    
43     // you can also show all the content, using this
44     // $tree->varDump(array($aElement));
45     // i just didnt, since it takes up more then the entire line, and its unreadable :-)
46    
47     print 'attributes - ';
48     print_r($aElement['attributes']);
49     print '<br>';
50    
51     }
52     print '<br>';
53    
54     }
55    
56    
57     /*
58    
59     This example demonstrates how to manage trees
60     that are saved in an XML-file
61    
62     it reads out the entire file upon calling the method
63     'setup', then you can work on the tree in whichever way
64     you want, just have a look at the examples
65     there are different ways to achieve things,
66     i will try to demonstrate (all of) them
67    
68     NOTE: for referening the XML-Nodes currently everything has to
69     be lower case,
70     SimpleTemplate/preFilter
71     should be
72     simpletemplate/prefilter
73    
74     */
75    
76     require_once('Tree/Tree.php');
77    
78     // calling 'setupMemory' means to retreive a class, which works on trees,
79     // that are temporarily stored in the memory, in an array
80     // this means the entire tree is available at all time
81     // consider the resource usage and it's not to suggested to work
82     // on huge trees (upto 1000 elements it should be ok, depending on your environment and requirements)
83     // using 'setupMemory'
84     $tree = Tree::setupMemory( 'XML', // use the XML class to read an xml file
85     'config.xml' // the DSN
86     );
87    
88     // methods 'add' 'remove' and so on are not implemented yet, you can only read the tree for now
89     // and navigate inside of it
90    
91     // call 'setup', to build the inner array, so we can work on the structure using the
92     // given methods
93     $tree->setup();
94    
95     dumpAllNicely( 'dump all after "$tree-&gt;setup"' );
96    
97     // get the path of the last inserted element
98     print 'id='.$id = $tree->getIdByPath('simpletemplate/options/delimiter');
99     dumpHelper( $tree->getPath( $id ) , 'dump the path from "simpletemplate/options/delimiter"' );
100    
101     $id = $tree->getIdByPath('simpletemplate/options');
102     dumpHelper( array($tree->getParent($id)) , 'dump the parent of "simpletemplate/options"' );
103     // you can also use: $tree->data[$id]['parent']
104    
105     $id = $tree->getIdByPath('simpletemplate');
106     dumpHelper( array($tree->getChild($id)) , 'dump the child of "simpletemplate"' );
107     // you can also use: $tree->data[$id]['child']
108    
109     $id = $tree->getIdByPath('simpletemplate/prefilter');
110     dumpHelper( $tree->getChildren($id) , 'dump the children of "simpletemplate/prefilter"' );
111     // you can also use: $tree->data[$id]['children']
112    
113     $id = $tree->getIdByPath('simpletemplate/options');
114     dumpHelper( array($tree->getNext($id)) , 'dump the "next" of "simpletemplate/options"' );
115     // you can also use: $tree->data[$id]['next']
116    
117     $id = $tree->getIdByPath('simpletemplate/prefilter');
118     dumpHelper( array($tree->getPrevious($id)) , 'dump the "previous" of "simpletemplate/prefilter"' );
119     // you can also use: $tree->data[$id]['previous']
120    
121    
122     $id = $tree->getIdByPath('simpletemplate/preFilter');
123     $element = $tree->data[$id]['child']['next']['next']; // refer to the third child of 'SimpleTemplate/preFilter/register'
124     dumpHelper( $element['id'] , 'demo of using the internal array, for referencing tree-nodes' );
125    
126     /*
127     NOT IMPLEMENTED YET
128    
129     $id = $tree->getIdByPath('myElement/anotherSubElement');
130     $tree->move( $id , 0 );
131     $tree->setup(); // rebuild the structure again, since we had changed it
132     dumpAllNicely( 'dump all, after "myElement/anotherSubElement" was moved under the root' );
133    
134     $moveId = $tree->getIdByPath('myElement');
135     $id = $tree->getIdByPath('anotherSubElement');
136     $tree->move( $moveId , $id );
137     $tree->setup(); // rebuild the structure again, since we had changed it
138     dumpAllNicely( 'dump all, after "myElement" was moved under the "anotherSubElement"' );
139    
140    
141     $tree->setRemoveRecursively(true);
142     $tree->remove(0);
143     print '<font color="red">ALL ELEMENTS HAVE BEEN REMOVED (uncomment this part to keep them in the DB after running this test script)</font>';
144     */
145     ?>

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