/** * Test Invalid ISBN-10. * * @return void */ public function testInvalidISBN10() { // Invalid ISBN-10: $isbn = new ISBN('2314346323'); $this->assertEquals($isbn->get10(), false); $this->assertEquals($isbn->get13(), false); $this->assertFalse($isbn->isValid()); }
/** * Return the first valid ISBN found in the record (favoring ISBN-10 over * ISBN-13 when possible). * * @return mixed */ public function getCleanISBN() { // Get all the ISBNs and initialize the return value: $isbns = $this->getISBNs(); $isbn13 = false; // Loop through the ISBNs: foreach ($isbns as $isbn) { // Strip off any unwanted notes: if ($pos = strpos($isbn, ' ')) { $isbn = substr($isbn, 0, $pos); } // If we find an ISBN-10, return it immediately; otherwise, if we find // an ISBN-13, save it if it is the first one encountered. $isbnObj = new ISBN($isbn); if ($isbn10 = $isbnObj->get10()) { return $isbn10; } if (!$isbn13) { $isbn13 = $isbnObj->get13(); } } return $isbn13; }
/** * Retrieve a Summon cover. * * @param string $id Serials Solutions client key. * * @return bool True if image displayed, false otherwise. */ protected function summon($id) { // convert normalized 10 char isn to 13 digits $isn = $this->isn; if (strlen($isn) != 13) { $ISBN = new ISBN($isn); $isn = $ISBN->get13(); } $url = 'http://api.summon.serialssolutions.com/image/isbn/' . $id . '/' . $isn . '/' . $this->size; return $this->processImageURL($url); }