Question

I need to retrieve data from several rows and then insert the results into an enumerated array so then I can use a ‘for’ loop to echo it…

I have this (I already connected to the database):

$genres_sql = 'SELECT genreID FROM genres WHERE imdbID = ?'; if ($stmt->prepare($genres_sql)) {     // bind the query parameters     $stmt->bind_param('i', $movieid);     // bind the results to variables     $stmt->bind_result($genre);     // execute the query     $stmt->execute();     $stmt->fetch(); } 

Here I get the first result (row) into a variable. But I need to insert it into an enumerated array so the I can echo each result using this:

if (!empty($genre)) { for ($i = 0; $i + 1 < count($genre); $i++) {     echo $genre[$i].', ';  } echo $genre[$i]; } 

This will echo: $genre[0], $genre[1], $genre[2], and so on until the last one.

I know that mysql_fetch_row can do the work, but I’m new to programming so I need a very detailed explanation.. Thank you!!

Answer 1

You can loop using the MySQLi_Statement::fetch method:

$stmt->bind_result($genre); $stmt->execute(); $genres = array(); while ($stmt->fetch()) {     $genres[] = $genre; } 

Basically fetch provides an iterator that the while can use to iterate through each result. The variables in bind_result (in this case $genre) are reassigned with each iteration.