syntax error, unexpected end of file, expecting ']' - unsure how to fix

Question

The code goes like this. I can't figure why there's a syntax error. I'm using PHP7.4

<?php
    /**
     * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
     * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
     *
     * Licensed under The MIT License
     * For full copyright and license information, please see the LICENSE.txt
     * Redistributions of files must retain the above copyright notice.
     *
     * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
     * @link          http://cakephp.org CakePHP(tm) Project
     * @since         3.0.0
     * @license       http://www.opensource.org/licenses/mit-license.php MIT License
     */
    namespace Cake\Upgrade\Shell\Task;
    
    use Cake\Upgrade\Shell\Task\BaseTask;
    use Cake\Utility\Inflector;
    
    /**
     * Updates test cases for 3.0
     */
    class TestsTask extends BaseTask
    {
    
        use ChangeTrait;
    
        public $tasks = ['Stage'];
    
        /**
         * Process tests regarding fixture usage and update it for 3.x
         *
         * @param string $content Fixture content.
         * @return bool
         */
        protected function _process($path)
        {
            $original = $contents = $this->Stage->source($path);
    
            // Serializes data from PHP data into PHP code.
            // Basically a code style conformant version of var_export()
            $export = function ($values) use (&$export) {
                $vals = [];
                if (!is_array($values)) {
                    return $vals;
                }
                foreach ($values as $key => $val) {
                    if (is_array($val)) {
                        $vals[] = "'{$key}' => [" . implode(", ", $export($val)) . "]";
                    } else {
                        $val = var_export($val, true);
                        if ($val === 'NULL') {
                            $val = 'null';
                        }
                        if (!is_numeric($key)) {
                            $vals[] = "'{$key}' => {$val}";
                        } else {
                            $vals[] = "{$val}";
                        }
                    }
                }
                return $vals;
            };
    
            // Process field property.
            $processor = function ($matches) use ($export) {
                eval('$data = [' . $matches[2] . '];');
    
                $out = [];
                foreach ($data as $key => $fixture) {
                    $pieces = explode('.', $fixture);
                    $fixtureName = $pieces[count($pieces) - 1];
                    $fixtureName = Inflector::pluralize($fixtureName);
                    $pieces[count($pieces) - 1] = $fixtureName;
    
                    $out[] = implode('.', $pieces);
                }
    
                return $matches[1] . "\n\t\t" . implode(",\n\t\t", $export($out)) . "\n\t" . $matches[3];
            };
    
            $contents = preg_replace_callback(
                '/(public \$fixtures\s+=\s+(?:array\(|\[))(.*?)(\);|\];)/ms',
                $processor,
                $contents,
                -1,
                $count
            );
    
            return $this->Stage->change($path, $original, $contents);
        }
    }

The error returns as -

Exception: syntax error, unexpected end of file, expecting ']' in [/Users/XX/Downloads/phpUpdate/upgrade/src/Shell/Task/TestsTask.php(67) : eval()'d code, line 3] 2021-12-15 16:04:03 Error: [ParseError] syntax error, unexpected end of file, expecting ']' in /Users/XX/Downloads/phpUpdate/upgrade/src/Shell/Task/TestsTask.php(67) : eval()'d code on line 3

Thanks,