protected function calculateValue()
{
if (strlen($this->parsed) > 1 && $this->parsed[0] == '=') {
$expr = substr($this->parsed, 1);
$subcell = new SpreadSheetCell($this->connection, $this->sheetid, $expr, $this->prefix, $this->db_type);
if ($subcell->isIncorrect() === false) {
$expr = $subcell->getCalculatedValue();
} else {
$expr = $this->replaceCells($expr);
$math = new Math();
$expr = $math->calculate($expr);
}
$this->calc = $expr;
} else {
$this->calc = $this->parsed;
}
}
public function isCell($coord)
{
$cell = new SpreadSheetCell($this->connection, $this->sheetid, $coord, $this->prefix);
if ($cell->isIncorrect()) {
return false;
}
return $cell;
}
