CS108 Post to Web Example

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This topic contains 1 reply, has 1 voice, and was last updated by  RTLSLab 1 year, 7 months ago.

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  • #8932 Reply


    I have created a web page to demonstrate the ability to post a web page from the CS108 Demo App. It is very simple, displaying all the fields from the json string. Each new submittal is added to the bottom. From time to time I will delete the data to keep it a reasonable length.

    As shown in the image below. Enable the ‘Save to Cloud’ switch and enter http://www.rtlslab.com/scan108.php on the Cloud Address line in Settings>Admin on the CS108 C# Demo Android or iPhone App. You must press ‘Save’ before leaving this screen. Then select ‘Inventory’ from the menu, scan some rfid tags and then press ‘Send’. The results can be seen at http://www.rtlslab.com/output.html

    I will post the php code in a response to this Topic.

    #8937 Reply



    //Make sure that it is a POST request.
    if(strcasecmp($_SERVER[‘REQUEST_METHOD’], ‘POST’) != 0){
    throw new Exception(‘Request method must be POST!’);

    //Receive the RAW post data.
    $content = trim(file_get_contents(“php://input”));

    //Attempt to decode the incoming RAW post data from JSON.
    $decoded = json_decode($content, true);

    //If json_decode failed, the JSON is invalid.
    throw new Exception(‘Received content contained invalid JSON!’);

    //Process the JSON.

    function array2table($array, $recursive = false, $null = ‘ ‘)
    // Sanity check
    if (empty($array) || !is_array($array)) {
    return false;

    if (!isset($array[0]) || !is_array($array[0])) {
    $array = array($array);

    // Start the table
    $table = “<table border=1 style=’text-align: center;
    vertical-align: middle;’>\n”;

    // The header
    $table .= “\t<tr>”;
    // Take the keys from the first row as the headings
    foreach (array_keys($array[0]) as $heading) {
    $table .= ‘<th>’ . $heading . ‘</th>’;
    $table .= “</tr>\n”;

    // The body
    foreach ($array as $row) {
    $table .= “\t<tr>” ;
    foreach ($row as $cell) {
    $table .= ‘<td>’;

    // Cast objects
    if (is_object($cell)) { $cell = (array) $cell; }

    if ($recursive === true && is_array($cell) && !empty($cell)) {
    // Recursive mode
    $table .= “\n” . array2table($cell, true, ‘null’) . “\n”;
    } else {
    $table .= (strlen($cell) > 0) ?
    htmlspecialchars((string) $cell) :

    $table .= ‘</td>’;

    $table .= “</tr>\n”;

    $table .= ‘</table>’;
    return $table;

    $file = ‘output.html’;

    file_put_contents($file, array2table($decoded, true, ‘null’), FILE_APPEND | LOCK_EX);


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