Store and iterate over result of query in mysqli

Question

This is my simple query in php, using mysqli object oriented style:

$query = \"SELECT name FROM usertable WHERE id = ?\";
$stmt = $mysqli->prepare($query)         


        

Answer 1

mysqli_stmt::store_result return a boolean. According to the doc it should be something like:

$stmt->execute();
$stmt->store_result();

$stmt->bind_result($name);

while($stmt->fetch()){
    //echo $name." ";
    // try another statement
    $query = "INSERT INTO usertable ...";
    $stmt2 = $mysqli->prepare($query);
    ...
}

$stmt->free_result();
$stmt->close();

If this doesn't work you can fetch all rows first into an array and then looping that array again:

$stmt->execute();
$stmt->bind_result($name);
$names = array();
while($stmt->fetch()){
    $names[] = $name;
}
$stmt->free_result();
$stmt->close();

foreach($names as $name) {
    $query = "INSERT INTO usertable ...";
    $stmt = $mysqli->prepare($query);
    ...
}