Question

what am trying to do here is get data from mysql generated checkboxes. The check boxes data are in array . So for all the check boxes selected I want to use each as a parameter in a query to get more info from another databastablee.

Sample Code Below

if (isset($_POST['submitCourseCode'])) { 
     //GET ARRAY FROM DATABASE GENERATED CHECKBOXES                                         
     $aElective =  $_POST['electiveModules'];


    foreach($aElective  as $snode) {                                                    
        echo "$snode <br />";
    }
    //PASSING EACH DATA FROM ARRAY INTO QUERY   
    $Query = "SELECT ID,title,credits 
             FROM module 
             WHERE ID IN('" . implode("', '", $aElective) ."')";

    $Result = mysql_query($Query) 
    or die ("Query failed: " . mysql_error() . " Actual query: " . $Query);

    while ($Row = mysql_fetch_array($Result)) {

           $id = htmlentities($Row['ID']);
           $title = htmlentities($Row['title']);
           $credits = $Row['credits'];

    echo "<ul>" . $id . " " . $title .  " " . $credits . "</ul>";

    }  
}
var_dump($Query);   
var_dump($Result);  
var_dump($Row);     

Screenshot of my result

Am guessing something is happening with my query probably because of the implode function but everything seems fine in my query.Any suggestions on what am doing wrong?

Answer 1

You need to trim array elements using array_map('trim', $aElective) as:

$Query = "SELECT ID,title,credits 
         FROM module 
         WHERE ID IN('" . implode("','", array_map('trim', $aElective)) ."')";