What are common pitfalls when trying to store database values in an array in PHP, especially in the context of WordPress?

One common pitfall when storing database values in an array in PHP, especially in the context of WordPress, is not properly sanitizing the data retrieved from the database. This can lead to security vulnerabilities such as SQL injection attacks. To solve this issue, always use prepared statements or escaping functions to sanitize the data before storing it in an array. 

global $wpdb;
$results = $wpdb->get_results( "SELECT * FROM wp_posts" );

$posts = array();
foreach ( $results as $result ) {
    $posts[] = array(
        'post_title' => esc_html( $result->post_title ),
        'post_content' => esc_html( $result->post_content ),
    );
}

Keywords

WordPress PHP database array serialization

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