PHP Classes

File: test.php

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  Classes of Gonzalo Chumillas   PHP Query   test.php   Download  
File: test.php
Role: Example script
Content type: text/plain
Description: Example script
Class: PHP Query
Parse and access XML documents as arrays
Author: By
Last change: update
Date: 8 years ago
Size: 3,315 bytes
 

Contents

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<?php
require_once "classes/autoload.php";
use
com\soloproyectos\common\dom\DomNode;
header("Content-type: text/plain; charset=UTF-8");

$root = DomNode::createFromString(file_get_contents("test.xml"));

// Example 1
echo "*** Example 1: Traversing an XML document ***\n\n";
$books = $root->query("books item");
foreach (
$books as $book) {
    echo
"Title: " . $book->attr("title") . "\n";
   
   
// gets genres
   
echo "Genres: ";
   
$genresIds = explode(" ", $book->attr("class"));
    foreach (
$genresIds as $id) {
       
$item = $root->query("genres item[id = '$id']");
        echo
$item->text() . " ";
    }
    echo
"\n";
   
   
// prints author
   
$item = $root->query("authors item[id = '" . $book->attr("author_id") . "'] name");
    echo
"Author: " . $item->text() . "\n";
   
   
// prints aditional info
   
echo "ISBN: " . $book->query("isbn")->text() . "\n";
    echo
"Available: " . $book->query("available")->text() . "\n";
    echo
"Description: " . trim($book->query("description")->text()) . "\n";
   
    echo
"---\n";
}

// Example 2
echo "\n*** Example 2: printing HTML contents ***\n\n";
$authors = $root->query("authors item[id = arthur-cclarke]");
echo
$authors . "\n";

// Example 3
echo "\n*** Example 3: storing and retrieving data ***\n\n";
$item = $root->query("books item[id = 3]");
$item->data("myVar", array("This is", "an", "arbitrary", "data", "structure"));
print_r($item->data("myVar"));

// Example 4
echo "\n*** Example 4: changing attributes and inner texts ***\n\n";
$item = $root->query("authors item[id = isaac-asimov]");
// changes the biography
$item->query("bio")->text("Isaac Asimov is AWESOME.");
// changes or adds new attributes
$item->attr("id", "isaac-awesome");
$item->attr("title", "The Awesome man");
// prints the modified node
echo $item . "\n";

// Example 5
echo "\n*** Example 5: adding new nodes ***\n\n";
$authors = $root->query("authors");
// adds a new science fiction author
$authors->append(new DomNode("item", array("id" => "ray-bradbury", "title" => "Ray Bradbury"), function ($target) {
   
$target->append(new DomNode("name", "Ray Bradbury"));
   
$target->append(new DomNode("born", "1920-08-22"));
   
$target->append(new DomNode("died", "2012-06-05"));
   
$target->append(new DomNode("bio", "Ray Douglas Bradbury was an American fantasy, science fiction, horror and mystery fiction writer."));
}));
// prepends raw content
$authors->prepend(
   
'<item id="mary-shelley">' .
       
'<name>Mary Shelley</name>' .
       
'<born>1797-08-30</born>' .
       
'<died>1851-02-01</died>' .
       
'<bio>Mary Shelley was an English novelist, short story writer, dramatist, essayist, biographer, and travel writer, best known for her Gothic novel Frankenstein: or, The Modern Prometheus.</bio>' .
   
'</item>'
);
echo
$authors . "\n";

// Example 6
echo "\n*** Example 6: removing and clearing nodes ***\n\n";
echo
"Removing the 'The Songs of Distant Earth'...\n";
$book = $root->query("books item[id = 3]");
$book->remove();
echo
"Removing all genres...\n";
$genres = $root->query("genres");
$genres->clear();
echo
$genres . "\n";

// Example 7
echo "\n*** Example 7: counting the number of elements ***\n\n";
// selects all even books
$items = $root->query("books item:even");
echo
"There are " . count($items) . " 'even' books.\n";