How to highlight a row of my table

Tags: php,mysql,css

Problem :

How can I highlight the background color of a row of a table I print this way when I read it's contents from a database? Sometimes two rows. The condition to highlight is the value of the 3rd column.

echo "<table id='allocation' class='inlineTable'>";  //style='border: solid 1px black;'
echo "<tr>";
echo "<th class=\"row-1 a_user\">User </th>";
echo "<th class=\"row-2 a_destination\">User </th>";
echo "<th class=\"row-3 a_tremaining\">Time Remaining </th>";
echo "<col = width: 3em />";
echo "</tr>";
echo "<col = width: 3em />";
class TableRows extends RecursiveIteratorIterator {
    function __construct($it) { 
     parent::__construct($it, self::LEAVES_ONLY);
    function current() {
     return "<td style='width: 100px; border: 1px solid black;'>" . parent::current(). "</td>";
    function beginChildren() {
     echo "<tr>";
    function endChildren() {
     echo "</tr>" . "\n";

$servername = "localhost";
$dbname = "mydb";
$user = 'root';
$port = 3306;

    $conn = new PDO("mysql:host=$servername;port=$port;dbname=$dbname", $user);
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);         
    $sql_fetch = $conn->prepare("SELECT user_ID, destination, trem FROM reservation_table");
    $result = $sql_fetch->setFetchMode(PDO::FETCH_ASSOC);
    foreach(new TableRows2(new RecursiveArrayIterator($sql_fetch->fetchAll())) as $k=>$v) {
        echo $v;
catch(PDOException $e) {
     echo "Error: " . $e->getMessage();

echo "</table>";
$conn = null;

May I please seek your help? I want to highlight or blink the row when the value in trem (third column) reaches 00:00. My css right now is very basic/simple :

Really need help.

Solution :

since i cannot yet comment, i am going to ask it this way. Can you please be a bit more specific. The trem value looks like a counter. So what you want to do is checking the value of the row with javascript, and if the value is 00.00 you change the css class with javascript.


If this is not what you mean then by all means feel free to correct me or clarify your question:)

EDIT: in your php function "current" you can check if the value is 00.00 with an if statement. call a javascript function if the value is 00.00 it should look like this:

function current() {
echo '<script type="text/javascript">'
   , '$('#elementId').toggleClass('yourCSSclass');'
   , '</script>'
     return "<td style='width: 100px; border: 1px solid black;'>" . parent::current(). "</td>";

note: i have little experience with the RecursiveIterator classes so i can not tell with certaincy that parent::current()=="00.00" will work, but you should get the general idea of checking the value and calling the js function.

EDIT: copy pasted from comment


 $i=0; while($array=sqlsrv_fetch_array($data)){ 
  //not sure if the above line works this is just theory
 <tr data-id="<?php echo $i; ?>">
      <td><?php echo $array['Product_id']; ?></td> 
      <td><?php echo $array['Product_name']; ?></td>
      <td><?php echo $counterVariable ?></td> 
<?php $i=$i+1; }?>

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