Return the result of Mysqli execute() - php

Question

I have a DELETE query, and I want to return the result of the execution. How can I do it ?
My php code:
Function delete_cat($category){
$stmt = $mysqli->prepare("DELETE category, products FROM category INNER JOIN products WHERE category.id = ? AND product_cat = category.category_name ");
$stmt->bind_param($category);
$stmt->execute();
$stmt->close();
//return should be here
}

Answer 1

So $stmt->execute(); => returns a bool value, whether your query was successfully executed or not, and you can do it simply like this:
function delete_cat($category){
$stmt = $mysqli->prepare("DELETE category, products FROM category INNER JOIN products WHERE category.id = ? AND product_cat = category.category_name ");
$stmt->bind_param($category);
$result = $stmt->execute();
$stmt->close();
return $result;
}
If you needed to get the count of the deleted elements, you can use mysqli_stmt_affected_rows, something like this:
function delete_cat($category){
$stmt = $mysqli->prepare("DELETE category, products FROM category INNER JOIN products WHERE category.id = ? AND product_cat = category.category_name ");
$stmt->bind_param($category);
$stmt->execute();
$result = $stmt->affected_rows;
$stmt->close();
return $result;
}

Answer 2

function delete_cat($category){
$stmt = $mysqli->prepare("DELETE category, products FROM category INNER JOIN products WHERE category.id = ? AND product_cat = category.category_name ");
$stmt->bind_param($category);
$result = $stmt->execute(); // store the return of the method into a variable here so we can return it later
$stmt->close();
return $result // would return if the rows have been deleted or not.
return $mysqli->affected_rows; // would return the amount of rows deleted
}
If you want to get the amount of rows that have been deleted you use affected_rows, if you want to just get the result if the SQL query was performed succesfull, simply store the return of $stmt->execute into a variable and return that.
http://php.net/manual/en/mysqli-stmt.affected-rows.php
http://php.net/manual/de/mysqli-stmt.execute.php