XML解析为PHP [关闭]

Question

I need help to parse XML with many level nodes into PHP as follows:

catalog.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<Catalog>
<Category>
<Name>Biscuit</Name>
<Type>
<Type1>Chocolate Chips</Type1>
<Ingredient>Flour, Chocolate Chips</Ingredient>
<Duration>15 minute Oven Bake</Duration>
</Type>
<Type>
<Type2>Lemon Puff</Type2>
<Ingredient>Flour, Lemon Extract</Ingredient>
<Duration>15 minute Oven Bake</Duration>
</Type>
</Category>
<Category>
<Name>Cake</Name>
<Type>
<Type1>Fruit Cake</Type1>
<Ingredient>Flour, Egg, Fresh Cream, Fruits</Ingredient>
<Duration>30 minute Conventional Oven Bake</Duration>
</Type>
<Type>
<Type2>Mango Cake</Type2>
<Ingredient>Flour, Egg, Fresh Cream, Mango, Nuts</Ingredient>
<Duration>30 minute Oven Bake</Duration>
</Type>
</Category>
</Catalog>

menu.php

<?php
$xml = simplexml_load_file("catalog.xml");
foreach ($xml->xpath('//Category') as $category)
{
echo $category->Name;
foreach($xml->xpath('//Site') as $site)
{
echo $site->ID;
}
}
?>

Something is not right in my php which I tried to solve going through examples but still having problem. Sorry this is my first php coding project. Thanks in advance to many experts.

Answer 1

Please have a read of http://devzone.zend.com/240/simplexml/
example:

<?php
// $xml = simplexml_load_file("catalog.xml");
$catalog = new SimpleXMLElement(data());

foreach ( $catalog->Category as $category ) {
    echo 'Name: ', $category->Name, "
";
    foreach( $category->Type as $type ) {
        if ( isset($type->Type1) ) {
            echo "  type1: ", $type->Type1, "
";
        }
        else if ( isset($type->Type2) ) {
            echo "  type2: ", $type->Type2, "
";
        }
        else {
            echo "  unknown type
";
        }
        echo '    Ingredient:', $type->Ingredient, "
";
        echo '    Duration: ', $type->Duration, "
";
    }
}


function data() {
    return <<< eox
<?xml version="1.0" encoding="ISO-8859-1"?>
<Catalog>
<Category>
<Name>Biscuit</Name>
<Type>
<Type1>Chocolate Chips</Type1>
<Ingredient>Flour, Chocolate Chips</Ingredient>
<Duration>15 minute Oven Bake</Duration>
</Type>
<Type>
<Type2>Lemon Puff</Type2>
<Ingredient>Flour, Lemon Extract</Ingredient>
<Duration>15 minute Oven Bake</Duration>
</Type>
</Category>
<Category>
<Name>Cake</Name>
<Type>
<Type1>Fruit Cake</Type1>
<Ingredient>Flour, Egg, Fresh Cream, Fruits</Ingredient>
<Duration>30 minute Conventional Oven Bake</Duration>
</Type>
<Type>
<Type2>Mango Cake</Type2>
<Ingredient>Flour, Egg, Fresh Cream, Mango, Nuts</Ingredient>
<Duration>30 minute Oven Bake</Duration>
</Type>
</Category>
</Catalog>
eox;
}

prints

Name: Biscuit
  type1: Chocolate Chips
    Ingredient:Flour, Chocolate Chips
    Duration: 15 minute Oven Bake
  type2: Lemon Puff
    Ingredient:Flour, Lemon Extract
    Duration: 15 minute Oven Bake
Name: Cake
  type1: Fruit Cake
    Ingredient:Flour, Egg, Fresh Cream, Fruits
    Duration: 30 minute Conventional Oven Bake
  type2: Mango Cake
    Ingredient:Flour, Egg, Fresh Cream, Mango, Nuts
    Duration: 30 minute Oven Bake