Uma maneira eficiente de salvar um Array e suas chaves em um banco de dados

// Sample array
$array = array(
             'key1' => 'value1',
             'key2' => 'value2'
             ...
             'key10' => 'value10'
         );

// Get and escape the keys
$keys = array_map('mysql_real_escape_string', array_keys($array));
// Escape the values
$array = array_map('mysql_real_escape_string', $array);
// Build query
$query = "INSERT INTO table(`".implode('`, `', $keys)."`) VALUES('".implode("', '", $array)."')";

mysql_query($query);

INSERT INTO
    table(`key1`, `key2` ... `key10`)
VALUES
    ('value1', 'value2' ... 'value10')

// Sample multidimensional array
$array = array(
             array('key1' => 'value1', 'key2' => 'value2'),
             array('key1' => 'value3', 'key2' => 'value4'),
             array('key1' => 'value5', 'key2' => 'value6')
         );

// Get and escape the keys
$keys = array_map('mysql_real_escape_string', array_keys(current($array)));
// Array to store values for the query
$values = array();
// Loop every row and insert into $values array
foreach($array as $row) {
    // Escape all items
    array_map('mysql_real_escape_string', $row);
    $values[] = "('".implode("', '", $row)."')";
}

$query = "INSERT INTO table(`".implode('`, `', $keys)."`) VALUES ".implode(', ', $values);

mysql_query($query);

INSERT INTO
    table(`key1`, `key2`)
VALUES
    ('value1', 'value2'),
    ('value3', 'value4'),
    ('value5', 'value6')