PDO query is not working

Question

I am trying to run a simple SELECT query. here is the query

$sql1=$conn->prepare("SELECT q.quoteid, q.customername, q.customersurname, q.timestamp, o.name 
FROM quotes as q, occasions as o 
WHERE q.occasionid=o.occasionid 
AND companyid=1 
AND q.day=:day 
AND q.month=:month 
AND q.year=:year 
AND staffid='-1' 
AND (q.complete != 'W' OR q.complete != 'Y') 
AND q.online=0");
$sql1->execute($exearray);
/* here  $exearray contain following value */
Array ( [:day] => 24 [:month] => 1 [:year] => 2014 ) 

Its not even showing any error. If I pass static value 1 in month it is showing data. I run this query directly on DB its working.

So I think there is no error in query. I am running this query locally on MAMP.

Answer 1

have you tried to parse your month's data to string before passing to the pdo???

$exearray = array(':day'=>24, ':month'=>(string)1, ':year'=>2014);

once i faced this situation and i did this and it worked for me. i always have this problem while i trying to use LIMIT command in mysql. i just parse my value to string or pass it through statically. and it doesn't relevant to your MAMP. i have this problem on LAMP and WAMP too. apparently it's a common problem which it's in PDO libraries.

and for the record don't forget to use intval() while you pass your month's variable directly to your query.

Answer 2

You need to fetch your result, execute only returns a boolean (true or false) whether query execution succeeded or not.

Example:

$sth = $dbh->prepare("SELECT name, colour FROM fruit");
$sth->execute();

/* Fetch all of the remaining rows in the result set */
print("Fetch all of the remaining rows in the result set:\n");
$result = $sth->fetchAll();
print_r($result);

from: http://php.net/manual/en/pdostatement.fetchall.php

Answer 3

Perhaps doing it the "long-way" with the parameters, and/or changing the query to use a join would help.

Also, the try/catch on PDOException might provide more information.

Lastly, note the $cmd->fetch(PDO::FETCH_ASSOC) invoked for iterating through the recordset.

try {       
    $db = new PDO("mysql:host=localhost;charset=utf8", "root", "root");
    $cmd = $db->prepare("
        SELECT q.quoteid, q.customername, q.customersurname, 
            q.timestamp, o.name 
        FROM quotes q
        LEFT JOIN occasions o on q.occasionid = o.occasionid
        WHERE companyid=1 
        AND q.day = :day 
        AND q.month = :month 
        AND q.year = :year 
        AND staffid = '-1' 
        AND (q.complete != 'W' OR q.complete != 'Y')    
        AND q.online = 0
    ");
    $cmd->bindParam(':day', 24, PDO::PARAM_INT);
    $cmd->bindParam(':month', 1, PDO::PARAM_INT);
    $cmd->bindParam(':year', 2014, PDO::PARAM_INT);
    if ($cmd->execute()) {
        while ($row = $cmd->fetch(PDO::FETCH_ASSOC)) {
            echo $row['quoteid']."|".$row['customername']."|".$row['name']."<br/>";
        }
    } else {
        echo "$cmd->execute() returned false.";
    }
} catch (PDOException $e) { echo $e->getMessage(); return; }

Answer 4

In table month column type was Varchar. I change that to integer and now it is working.

ps I have tried using (string) before variable and even double quotes and single quotes on variable value but it didn't work.

Thank you everyone. :)