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See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * JSON data format writer
 *
 * @package    dataformat_json
 * @copyright  2016 Brendan Heywood (brendan@catalyst-au.net)
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace dataformat_json;

< defined('MOODLE_INTERNAL') || die();
> use core_text;
/** * JSON data format writer * * @package dataformat_json * @copyright 2016 Brendan Heywood (brendan@catalyst-au.net) * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class writer extends \core\dataformat\base { /** @var $mimetype */ public $mimetype = "application/json"; /** @var $extension */ public $extension = ".json"; /** @var $sheetstarted */ public $sheetstarted = false; /** @var $sheetdatadded */ public $sheetdatadded = false;
> /** @var string[] $columns */ /** > protected $columns = []; * Write the start of the file. >
*/ public function start_output() { echo "["; } /** * Write the start of the sheet we will be adding data to. * * @param array $columns */ public function start_sheet($columns) {
> $this->columns = array_map(function($column) { if ($this->sheetstarted) { > return core_text::strtolower(clean_param($column, PARAM_ALPHANUMEXT)); echo ","; > }, $columns); } else { >
$this->sheetstarted = true; } $this->sheetdatadded = false; echo "["; } /** * Write a single record * * @param array $record * @param int $rownum */ public function write_record($record, $rownum) { if ($this->sheetdatadded) { echo ","; }
> // Ensure our record is keyed by column names, rather than numerically. echo json_encode($this->format_record($record), JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT); > $record = array_combine($this->columns, (array) $record);
$this->sheetdatadded = true; } /** * Write the end of the sheet containing the data. * * @param array $columns */ public function close_sheet($columns) { echo "]"; } /** * Write the end of the file. */ public function close_output() { echo "]"; } }