public function testGetKeywords()
{
$meta = $this->meta->getKeywords();
$this->assertInstanceOf('\\Cekurte\\WebScrapingBundle\\Selector\\SelectorInterface', $meta);
$this->assertEquals('meta[name="keywords"]', $meta->getSelectorKey());
$this->assertEquals(SelectorBuilder::NODE_ATTR, $meta->getSelectorType());
$this->assertEquals('content', $meta->getSelectorAttr());
}
/**
* @inheritdoc
*/
public function getKeywords()
{
$content = SelectorResolver::create()->resolve($this->crawler, $this->selector->getKeywords())->getSingleResult();
if (empty($content)) {
return array();
}
if (strpos($content, ',') !== false) {
$keywords = explode(',', $content);
} elseif (substr_count($content, ' ') > 4) {
$keywords = explode(' ', $content);
} else {
$keywords = array($content);
}
array_walk($keywords, function ($item, $key) use(&$keywords) {
if (is_numeric(trim($item))) {
unset($keywords[$key]);
} else {
$item = trim(strtolower($item));
}
});
return array_unique($keywords);
}
