/**
* Grabber for finance.i.ua is a bit deeper than a common
*
* @param simple_html_dom_node $cells
* @param type $tr_idx
* @param type $td_idx
* @return type
* @throws \Exception
*/
protected function grabTableCell(simple_html_dom_node $cells, $tr_idx, $td_idx)
{
$row = $cells->find('tr', $tr_idx);
if (empty($row)) {
throw new \LogicException('broken markup: no cells row');
}
$cell = $row->find('td', $td_idx);
if (!empty($cell)) {
$cell = $cell->first_child();
}
if (empty($cell)) {
throw new \LogicException('broken markup: no cells cell');
}
return trim($cell->plaintext);
}
protected function grabTableCell(simple_html_dom_node $cells, $cell_selector, $cell_idx)
{
// get cell
$cell = $cells->find($cell_selector, $cell_idx);
if (empty($cell)) {
throw new \LogicException('broken markup: no cells cell');
}
$cell_text = $cell->innertext;
// clear useless blocks
$children = $cell->children();
if (!empty($children)) {
foreach ($cell->children() as $child) {
$cell_text = str_replace($child->outertext, '', $cell_text);
}
}
// filter data
$cell_text = str_replace('грн', '', $cell_text);
$cell_text = str_replace(',', '.', $cell_text);
return trim($cell_text);
}
/**
* Grab, check and filter cell in exchanges DOM node
* Most of banks store exchange values in DOM structures like table
* This method is covering most of the job
*
* @param simple_html_dom_node $cells
* @param int $tr_idx
* @param int $td_idx
* @param string $tr_selector
* @param string $td_selector
* @return string
* @throws \Exception
*/
protected function grabTableCell(simple_html_dom_node $cells, $tr_idx, $td_idx, $tr_selector = null, $td_selector = null)
{
// reassign empty selectors if any
$tr_selector = $tr_selector ?: 'tr';
$td_selector = $td_selector ?: 'td';
// get row
$row = $cells->find($tr_selector, $tr_idx);
if (empty($row)) {
throw new \LogicException('broken markup: no cells row');
}
// get cell
$cell = $row->find($td_selector, $td_idx);
if (empty($cell)) {
throw new \LogicException('broken markup: no cells cell');
}
// get data
$data = $cell->plaintext;
// filter data
if (!empty($data)) {
$data = str_replace(',', '.', $data);
$data = str_replace([' ', ' '], '', $data);
}
// return filtered result
return $data;
}