With PHP5's solid XML support and improved internal OOP support, Web Services are now a natural fit for PHP.
Most people seem to think of SOAP when we say Web Services, so here is the obligatory SOAP example:
<?php
$amazon_index = array(
'DVD', 'Photo', 'Electronics', 'OfficeProducts', 'HealthPersonalCare',
'Toys', 'Baby', 'VideoGames', 'MusicTracks', 'OutdoorLiving',
'Blended', 'MusicalInstruments', 'Magazines', 'DigitalMusic',
'Jewelry', 'Video', 'Tools', 'PCHardware', 'SportingGoods',
'Classical', 'Software', 'Books', 'VHS', 'Wireless', 'Restaurants',
'Music', 'GourmetFood', 'Miscellaneous', 'Kitchen', 'WirelessAccessories',
'Merchants', 'Beauty', 'Apparel'
);
function amazon($index, $keywords, $timeout=7200) {
$dest_file = "/tmp/aws_{$index}_".md5($keywords);
if(file_exists($dest_file) && filemtime($dest_file) > (time()-$timeout)) {
$result = unserialize(file_get_contents($dest_file));
} else {
$aws = new SoapClient('http://webservices.amazon.com/'.
'AWSECommerceService/US/AWSECommerceService.wsdl',
array("trace" => 1));
$result = $aws->ItemSearch(array(
'SubscriptionId'=>'XXXXXXXXXXXXXX',
'AssociateTag'=>'lerdorf-20',
'Request'=>array(array('SearchIndex'=>$index,
'Keywords'=>$keywords))
)
);
$tmpf = tempnam('/tmp','YWS');
file_put_contents($tmpf, serialize($result));
rename($tmpf, $dest_file);
}
return $result;
}
?>
