JSON File Create And Data Store Using PhP

<?php
    // https://www.geeksforgeeks.org/how-to-append-data-in-json-file-through-html-form-using-php/
    $data = $_POST;

    $log_path = ROOT_DIR.'react_logs';
    $log_file = $log_path.'/logs.json';

    $this->_maybe_create_upload_path($log_path); // Create Folder 'react_log'

    if(!file_exists($log_file)){
        fopen(rtrim($log_path, '/').'/'.'logs.json', 'w') or die("Unable to open file!");
    }

    if(file_exists($log_file))
    {
        // $inp = file_get_contents($log_file);
        // if(!empty($inp)){
        //     $tempArray = json_decode($inp, TRUE);
        //     array_push($tempArray, json_decode($data['logs'], TRUE));
        //     file_put_contents($log_file, json_encode($tempArray));
        // }else{
        //     $logs = array();
        //     $logs[] = json_decode($data['logs'], TRUE);
        //     file_put_contents($log_file, json_encode($logs));
        // }
        $tempArray = array();
        $inp = file_get_contents($log_file);
        if(!empty($inp)){
            $tempArray = json_decode($inp, TRUE);
        }
        $tempArray[] = json_decode($data['logs'], TRUE);
        file_put_contents($log_file, json_encode($tempArray));

        echo 'Log Added.';
    }else{
        echo 'Log File Not Create in Server';
    }
?>