fetchAll（）返回值为0的数组（PDO）

Question

I'm trying to bind values into a SQL statement. It appears it is either not binding, or is working and is not returning the needed data for reasons unbeknownst to me. Here is my code:

$search_string = 'turkey';

// Gathers the bird ID through searched name
$birdID = $conn->prepare("SELECT `id` FROM `birds` WHERE `bird_name` LIKE :birdName ;");    
$birdID->execute(array(':birdName' => '%'.$search_string.'%'));  
$returnBirdID = $birdID->fetchAll(PDO::FETCH_BOTH);

foreach($returnBirdID as $birdID){
    $birdsID[] = $birdID;
}

Important to note here is var_dump($birdsID) returns an array as expected.

I have another code block similar to the above that retrieves data based on state abbreviation, e.g. "NY". Leaving it out for brevity (it's almost identical to the above).

// Build query for binding.

$sql = "
              SELECT t.state_id,t.bird_id
              FROM table1
              WHERE bird.id = :birdID 
              AND states.id = :statesID ;
          ";
$query = $conn->prepare($sql, array(PDO::ATTR_CURSOR => PDO::CURSOR_FWDONLY));
$query->execute(array(':birdID'=>$birdsID,':statesID'=>$statesID));// Think this line may be the problem...
$results = $query->fetchAll(PDO::FETCH_BOTH);

foreach($results as $getID){
    $getIDs[] = $getID;
}

var_dump($getIDs) returns NULL here. I think it may be tied into :birdID'=>$birdsID not accepting $birdsID as a value because all by itself it is an array. But coding it as $birdsID[0] does not work either. Not sure what's up!

Whew... been working on this several hours. If it doesn't make sense, sorry! Brain fried.

Answer 1

In the PDO tag (info) you will find the correct procedure for using wildcards in parameters.

$search_string = '%turkey%';

// Gathers the bird ID through searched name
$birdID = $conn->prepare("SELECT `id` FROM `birds` WHERE `bird_name` LIKE :birdName ;");    
$birdID->execute(array(':birdName' => $search_string));  
$returnBirdID = $birdID->fetchAll(PDO::FETCH_BOTH);

foreach($returnBirdID as $birdID){
    $birdsID[] = $birdID;
}