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easyrdf/examples/sparql_queryform.php
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| <?php | |
| /** | |
| * Form to submit and display SPARQL queries | |
| * | |
| * This example presents a form that you can enter the URI | |
| * of a a SPARQL endpoint and a SPARQL query into. The | |
| * results are displayed using a call to dump() on what will be | |
| * either a EasyRdf\Sparql\Result or EasyRdf\Graph object. | |
| * | |
| * A list of registered namespaces is displayed above the query | |
| * box - any of these namespaces can be used in the query and PREFIX | |
| * statements will automatically be added to the start of the query | |
| * string. | |
| * | |
| * @package EasyRdf | |
| * @copyright Copyright (c) 2009-2014 Nicholas J Humfrey | |
| * @license http://unlicense.org/ | |
| */ | |
| require_once realpath(__DIR__.'/..')."/vendor/autoload.php"; | |
| require_once __DIR__."/html_tag_helpers.php"; | |
| // Stupid PHP :( | |
| if (get_magic_quotes_gpc() and isset($_REQUEST['query'])) { | |
| $_REQUEST['query'] = stripslashes($_REQUEST['query']); | |
| } | |
| ?> | |
| <html> | |
| <head> | |
| <title>EasyRdf SPARQL Query Form</title> | |
| <style type="text/css"> | |
| .error { | |
| width: 35em; | |
| border: 2px red solid; | |
| padding: 1em; | |
| margin: 0.5em; | |
| background-color: #E6E6E6; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>EasyRdf SPARQL Query Form</h1> | |
| <div style="margin: 0.5em"> | |
| <?php | |
| print form_tag(); | |
| print label_tag('endpoint'); | |
| print text_field_tag('endpoint', "http://dbpedia.org/sparql", array('size'=>80)).'<br />'; | |
| print "<code>"; | |
| foreach(\EasyRdf\RdfNamespace::namespaces() as $prefix => $uri) { | |
| print "PREFIX $prefix: <".htmlspecialchars($uri)."><br />\n"; | |
| } | |
| print "</code>"; | |
| print text_area_tag('query', "SELECT * WHERE {\n ?s ?p ?o\n}\nLIMIT 10", array('rows' => 10, 'cols' => 80)).'<br />'; | |
| print check_box_tag('text') . label_tag('text', 'Plain text results').'<br />'; | |
| print reset_tag() . submit_tag(); | |
| print form_end_tag(); | |
| ?> | |
| </div> | |
| <?php | |
| if (isset($_REQUEST['endpoint']) and isset($_REQUEST['query'])) { | |
| $sparql = new \EasyRdf\Sparql\Client($_REQUEST['endpoint']); | |
| try { | |
| $results = $sparql->query($_REQUEST['query']); | |
| if (isset($_REQUEST['text'])) { | |
| print "<pre>".htmlspecialchars($results->dump('text'))."</pre>"; | |
| } else { | |
| print $results->dump('html'); | |
| } | |
| } catch (Exception $e) { | |
| print "<div class='error'>".$e->getMessage()."</div>\n"; | |
| } | |
| } | |
| ?> | |
| </body> | |
| </html> |