PHP code example of benestar / asparagus

1. Go to this page and download the library: Download benestar/asparagus library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

benestar / asparagus example snippets


use Asparagus\QueryBuilder;

$prefixes = array(
	'test' => 'http://www.example.com/test#'
);

$queryBuilder = new QueryBuilder( $prefixes );
$queryBuilder->select( '?name', '?email' )
	->where( '?person', 'test:name', '?name' )
	->also( 'test:email', '?email' )
	->limit( 10 );

echo $queryBuilder->format();


use Asparagus\QueryBuilder;

$prefixes = array(
	'test' => 'http://www.example.com/test#'
);

$queryBuilder = new QueryBuilder( $prefixes );
$queryBuilder->select( '?name' )
	->where( '?person', 'test:name', '?name' )
	->optional( '?person', 'test:email', '?email' )
	->filter( '!BOUND (?email)' );

echo $queryBuilder->format();


use Asparagus\QueryBuilder;

$prefixes = array(
	'dc10' => 'http://purl.org/dc/elements/1.0/',
	'dc11' => 'http://purl.org/dc/elements/1.1/'
);

$queryBuilder = new QueryBuilder( $prefixes );

$queryBuilder->select( '?title', '?author' )
	->union(
		$queryBuilder->newSubgraph()
			->where( '?book', 'dc10:title', '?title' )
			->also( 'dc10:creator', '?author' ),
		$queryBuilder->newSubgraph()
			->where( '?book', 'dc11:title', '?title' )
			->also( 'dc11:creator', '?author' )
	);

echo $queryBuilder->format();

sparql
PREFIX dc10: <http://purl.org/dc/elements/1.0/>
PREFIX dc11: <http://purl.org/dc/elements/1.1/>

SELECT ?title ?author WHERE {
	{
		?book dc10:title ?title ;
			dc10:creator ?author .
	} UNION {
		?book dc11:title ?title ;
			dc11:creator ?author .
	}
}