CsvView.php

/**
 * Generates a single row in a csv from an array of
 * data by writing the array to a temporary file and
 * returning it's contents
 *
 * @param array $row Row data
 * @return mixed string with the row in csv-syntax, false on fputcsv or fwrite failure
 */
	protected function _generateRow($row = null) {
		static $fp = false;
		if ($fp === false) {
			$fp = fopen('php://temp', 'r+');

			if ($this->viewVars['_bom']) {
				fwrite($fp, chr(0xEF) . chr(0xBB) . chr(0xBF));
			}
			if ($this->viewVars['_setSeparator']) {
				fwrite($fp, "sep=" . $this->viewVars['_delimiter'] . "\n");
			}
		} else {
			ftruncate($fp, 0);
		}

		if ($row === false || $row === null) {
			return '';
		}

		$delimiter = $this->viewVars['_delimiter'];
		$enclosure = $this->viewVars['_enclosure'];
		$newline = $this->viewVars['_newline'];

		$row = str_replace(array("\r\n", "\n", "\r"), $newline, $row);
		
		if ($enclosure === false) {
			if (fwrite($fp, implode($row, ',')."\n") === false) {
				return false;
			}
		} else {
			if (fputcsv($fp, $row, $delimiter, $enclosure) === false) {
				return false;
			}
		}
		
		rewind($fp);

		$csv = '';
		while (($buffer = fgets($fp, 4096)) !== false) {
			$csv .= $buffer;
		}

		$eol = $this->viewVars['_eol'];
		if ($eol !== "\n") {
			$csv = str_replace("\n", $eol, $csv);
		}
		
		return $csv;
	}