andrewfenn / xmlreader
andrewfenn/xmlreader is an XML library that makes sabre/xml package easier to use
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Requires
- php: >=5.5.5
- sabre/xml: ^1.5
Requires (Dev)
This package is not auto-updated.
Last update: 2024-10-27 01:27:11 UTC
README
The sabre/xml library is a specialized XML reader and writer for PHP which can be downloaded here. This project is not associated with the sabre/xml project.
Sabre XML is a great PHP library for XML reading, but it can be difficult to use and make your code unessesarily complicated when you have very simple XML to parse. Therefore I have made this small extension on top of sabre/xml that allows you to access the information more natually making it easier to get what you want done.
Install
composer require andrewfenn/xmlreader -v ~1.0.0
Methods
XMLReaderElement
provides the following methods...
-
array find( string )
Searches through all the children or attributes, and returns an array. If you are searching for a tag the array will be a list of XMLReaderElement elements. If you are searching for an attribute your array will be of the value it contains. To search for an attribute prepend an @ to the beginning of your search term.
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mixed findFirst( string )
Searches through all the children or attributes and returns the first result found. If you are searching for a tag the result will be an XMLReaderElement. If you are searching for an attribute you will get that attributes value.
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array children( void )
Returns an array of this XMLReaderElement's children.
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bool hasChildren( void )
If the element has any XMLReaderElement children
Examples
$input = <<<XML <?xml version="1.0" encoding="UTF-8"?> <HotelMessage Version="1.0" TimeStamp="2016-05-26T11:11:50"> <Message>Hello</Message> <Hotel HotelCode="3"> <AvailableStatus> <StatusControl Start="2017-01-01" End="2017-01-02" InvTypeCode="999" RatePlanCode="888" /> <LengthsOfStay ArrivalDateBased="true"> <LengthOfStay MinMaxMessageType="MinLOS" TimeUnit="Day" Time="3" /> </LengthsOfStay> </AvailableStatus> </Hotel> <Hotel HotelCode="7"> <AvailableStatus> <StatusControl Start="2017-01-04" End="2017-01-05" InvTypeCode="111" RatePlanCode="444" /> <LengthsOfStay ArrivalDateBased="true"> <LengthOfStay MinMaxMessageType="MinLOS" TimeUnit="Day" Time="7" /> </LengthsOfStay> </AvailableStatus> </Hotel> </HotelMessage> XML; // Use Sabre as usual $reader = new \Sabre\Xml\Reader(); $reader->xml($input); // Parse in the reader object $data = (new \Sabre\Xml\XMLReaderElement())->parse($reader->parse());
Debugging
// Start accessing the data you want var_dump($data); /* Returns... object(Sabre\Xml\XMLReaderElement)#68 (4) { ["name"]=> string(12) "HotelMessage" ["namespace"]=> string(0) "" ["attributes"]=> object(stdClass)#69 (2) { ["Version"]=> string(3) "1.0" ["TimeStamp"]=> string(19) "2016-05-26T11:11:50" } ["children"]=> string(19) "Message,Hotel,Hotel" } */
Accessing a single child tag
echo "Message: ".$data->Message->value."\n"; echo "Message Type: ".$data->Message->attributes->Type."\n"; /* Returns... Message: Hello Message Type: Info */
When accessing a single child tag like this it will return the first element it finds, for multiple children see below.
echo "Hotel ID: ".$data->Hotel->attributes->HotelCode."\n"; /* Returns... Hotel ID: 3 */
Accessing multiple children tags
foreach($data->find('Hotel') as $hotel) { // Find a specific element's attribute echo "Hotel ID: ".$hotel->attributes->HotelCode."\n"; } foreach($data->children() as $tag) { if ($tag->name == 'Hotel') { echo "Hotel ID: ".$tag->attributes->HotelCode."\n"; } } /* Returns... Hotel ID: 3 Hotel ID: 7 Hotel ID: 3 Hotel ID: 7 */
Finding an array of tags or attributes
The find()
function will always return an array. Your search term must match exactly to that of the Tag or Attribute.
// You can search for any tag attribute by prepending an @ infront of the attribute's name like so... foreach($data->find('@HotelCode') as $hotel_code) { echo "Hotel Code: ".$hotel_code."\n"; } // You can search for any tag like so... foreach($data->find('LengthsOfStay') as $los) { echo "Length of Stay: ".$los->findFirst('@Time')." Days\n"; } /* Returns... Hotel Code: 3 Hotel Code: 4 Length of Stay: 3 Days Length of Stay: 7 Days */
Picking up the first element or attribute
echo $data->findFirst('@TimeStamp')."\n"; echo $data->findFirst('@HotelCode')."\n"; echo $data->findFirst('Hotel')->findFirst('@RatePlanCode')."\n"; /* Returns... 2016-05-26T11:11:50 3 888 */