fetch（PDO :: FETCH_ASSOC仅返回一行

Question

Changing over from what is now depreciated mysql code, over to PDO. This code is supposed to output all the values within the table. Here is the code:

$stmt = $pdo->prepare('SELECT * FROM admin WHERE user_id = :user_id');
$stmt->bindParam(':user_id', $userid);
$stmt->execute();
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {

and the code that calls the fields are:

$data_t .= '<td>' . $row['date'] . '</td>';
$data_t .= '<td>' . $row['length'] . '' . $selected . '</td>';
$data_t .= '<td>' . $row['ground'] . '' . $selected . '</td>';

For some reason, rather than output all of the matching values selected, only one is spit out. Now I also make use of a count function to display how many entries a person has made, and that shows one entry less than is actually in the database. (meaning it displays a numerical count of 4 if 5 exist) Here is that code:

$rResult = $stmt->fetchAll();
$gorResult = count($rResult);

I have tried using fetchAll() with this code and that returns nothing at all. I know I must be missing something here, and it's likely simple for someone with a fresh brain. Again the issue is this call only outputs one row, rather than all matching rows.

$stmt = $pdo->prepare('SELECT * FROM admin WHERE user_id = :user_id');
$stmt->bindParam(':user_id', $userid);
$stmt->execute();

$rResult = $stmt->fetchAll();
$gorResult = count($rResult);

foreach($rResult as $row) {


$data_t = '<b>Length: '. $strt_length .' </b>  |  <b>Ground: '. $strt_ground .' </b>';
$data_t .= '<span class="label label-success">'. $gorResult .' Entries Total</span>';
$data_t .= '<table class="table table-striped">';
$data_t .= '<thead>';
$data_t .= '<tr>';
$data_t .= '<th>' . $table_fields['jo_col_1_name'] . '</th>'; 
$data_t .= '<th>' . $table_fields['jo_col_2_name'] . '</th>'; 
$data_t .= '<th>' . $table_fields['jo_col_3_name'] . '</th>';
$data_t .= '</tr>';
$data_t .= '</thead>';
$data_t .= '<tbody>';
$data_t .= '<tr>';
$data_t .= '<td>' . $row['date'] . '</td>';
$data_t .= '<td>' . $row['length'] . '' . $selected . '</td>';
$data_t .= '<td>' . $row['ground'] . '' . $selected . '</td>';
$data_t .= '<td>';

if (!$del_hide) {

$data_t .= "<form method='post' action='');' />";
$data_t .= "<input type='hidden' name='primary_key' value='".$row["primary_key"]."' />";
$data_t .= '<button type="submit" name="deleteItem" value="delete" class="btn btn-link">';
$data_t .= '<span class="glyphicon glyphicon-remove"></span></button>';
} else { };
$data_t .= '<button type="image" name="image" value="image" class="btn btn-link">';
$data_t .= '<span class="glyphicon glyphicon-picture"></span></button>';
$data_t .= '</form>';
}
$data_t .= '</td>';
$data_t .= '<td>';
$data_t .= '</td>';
$data_t .= '</tr>';
$data_t .= '</tbody>';
$data_t .= '</table>';

echo $data_t;
?>

Answer 1

As far as I understand your long and windy story, you are doing something like this

while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) { // fetching one row
    $data_t .= '<td>' . $row['date'] . '</td>'; // using row
    $rResult = $stmt->fetchAll(); // FETCHING REST OF ROWS
    ...
} // no more rows for the next iteration

while it have to be

$data = $stmt->fetchAll(); // fetching rows
$count = count($data); // getting count
foreach($data as $row) { // iterating over rows
    $data_t .= '<td>' . $row['date'] . '</td>'; // using row
}

Answer 2

There is only one row because you specified user_id (which, I assume, is unique key). Just remove it.