class.ilCSVWriter.php

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<?php

class ilCSVWriter
{
    private string $csv = '';
    private string $separator = ',';
    private string $delimiter = '"';
    private string $new_line = "\n";
    private bool $first_entry = true;

    public function setSeparator(string $a_sep): void
    {
        $this->separator = $a_sep;
    }

    public function setDelimiter(string $a_del): void
    {
        $this->delimiter = $a_del;
    }

    public function addRow(): void
    {
        $this->csv .= $this->new_line;
        $this->first_entry = true;
    }

    public function addColumn(string $a_col): void
    {
        if (!$this->first_entry) {
            $this->csv .= $this->separator;
        }
        $this->csv .= $this->delimiter;
        $this->csv .= $this->quote($a_col);
        $this->csv .= $this->delimiter;
        $this->first_entry = false;
    }

    public function getCSVString(): string
    {
        return $this->csv;
    }

    private function quote(string $a_str): string
    {
        return str_replace(
            $this->delimiter,
            $this->delimiter . $this->delimiter,
            $a_str
        );
    }
}