ISBNcheck/isbn.php at master · bmgonzales/ISBNcheck · GitHub

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<?php
  //form submit
  if ($_SERVER["REQUEST_METHOD"] == "POST") {
	$isbnlist = '';
	$output = '';
	$results = '';
	$holding = '';

		//retrieve ISBN list
		$isbnlist = $_POST['isbnlist'];
		$isbnlist = str_replace('-', '', $isbnlist);
		$isbnlist = explode("\r", $isbnlist);
		$isbnlist = array_map("trim", $isbnlist);
		$isbnlist = array_filter($isbnlist);
		$isbnlist = array_values($isbnlist);

		//loop through ISBN array
		foreach ($isbnlist as $isbn) {
			if (strlen($isbn) == 9) {
				$isbn = "0" . $isbn;

			}

			$url = "http://www.worldcat.org/webservices/catalog/content/libraries/isbn/{$isbn}?oclcsymbol=SAT&wskey=pm9SJTEW02D38zwtAQgHq2gWh9PGTsusDklgnPNb8ZSMwhoSduzUPokOXWlg7HXj3vgSj5CY3LJR7mM2";
			$xmlrecord = array();
			$isbn_checked = '';
			$xml = simplexml_load_file($url);


				if (!$xml) {
					$message = "Could not retrieve record from WorldCat";
				} else {

					$get_citation = "http://www.worldcat.org/webservices/catalog/content/citations/isbn/{$isbn}?wskey=pm9SJTEW02D38zwtAQgHq2gWh9PGTsusDklgnPNb8ZSMwhoSduzUPokOXWlg7HXj3vgSj5CY3LJR7mM2";
					$citation = file_get_contents($get_citation);

						if ($citation == "info:srw/diagnostic/1/65Record does not exist") {
							$citation = "<span style='color:red;'>Record not found in WorldCat</span>";
						}

						if ($xml->holding) {
							$href = $xml->holding->electronicAddress->text;
							$copies = $xml->holding->holdingSimple->copiesSummary->copiesCount;

							$isbn_checked = "<tr><td>" . $isbn . "</td><td><a href='" . $href . "' target='_blank'><strong>" . $citation . "</strong></a></td><td><span style='color:red;'><strong>" . $copies . " copy(s)</strong></span></td></tr>";

						} elseif ($xml->diagnostic) {
							$notfound = $xml->diagnostic->message;

							if ($notfound == "Record does not exist") {
								$message = "<span style='color:red;'>May not be published yet</span>";
							} elseif ($notfound == "Holding not found") {
								$message = "NOT HELD BY OLLU";
							}

							$isbn_checked = "<tr><td>" . $isbn . "</td><td> " . $citation . "</td><td> " . $message . "</td></tr>";
						}
				}

				$output .= $isbn_checked;

		}//end foreach loop

		//results
		ob_start();
		print "<table id='output' style='width:100%;'><thead><th>ISBN</th><th style='width:70%;'>Title</th><th>OLLU Holdings</th></thead><tbody>";
		print $output;
		print "</tbody></table>";
		$results = ob_get_clean();

  }//end form submit
 ?>