PDO prepare not outputting any result

[phparion]

Hi,

I am using following code

$sth = $dbh->prepare("SELECT *
 FROM qna
 WHERE q LIKE '%:qu%'");
$quo = "what";
$sth->bindParam(':qu', $quo, PDO::PARAM_STR,4);
$sth->execute();
$result = $sth->fetchAll();
print_r($result);

it is giving me EMPTY array

Array()

as an output

while if I execute the same array with replacing :qu with "what" word it shows me all fetched records.

Can anybody guess where am I doing wrong?

thank you!

[newb2seo]

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