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WordPress wpdb object - delete() method - is data sanitised/escaped?

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  • WordPress wpdb object - delete() method - is data sanitised/escaped?

    As far as I can see, the Data Validation documentation on WordPress Codex does not mention whether the delete() method SQL-escapes input or if I need to do this myself. As I am developing a very important WordPress plugin, I wanted to be absolutely sure WordPress SQL-escapes 'WHERE [...]' input for me. For others looking for the same answer, yes it does - as far as WordPress version 4.2.1 is concerned (the most recent version at the time of writing). You can find out for yourself by searching in the wp-includes/wp-db.php file. The entire delete() method as seen in 4.2.1:

    PHP Code:
    public function delete$table$where$where_format null ) {
        if ( ! 
    is_array$where ) ) {
            return 
    false;
        }

        
    $where $this->process_fields$table$where$where_format );
        if ( 
    false === $where ) {
            return 
    false;
        }

        
    $conditions $values = array();
        foreach ( 
    $where as $field => $value ) {
            
    $conditions[] = "`$field` = " $value['format'];
            
    $values[] = $value['value'];
        }

        
    $conditions implode' AND '$conditions );

        
    $sql "DELETE FROM `$table` WHERE $conditions";

        
    $this->check_current_query false;
        return 
    $this->query$this->prepare$sql$values ) );

    As you can see at the bottom, the prepare() method is used which SQL-escapes input for inclusion in the query. See: https://codex.wordpress.org/Class_Re...ection_Attacks

    Hope this helps.
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