You can add where condition to filter records using where() function. In simplest term, you can pass the column name and value to apply where condition, default "=" (equalto) operator will be used if you don't pass any operator as third parameter
Below example shows how to generate queries like WHERE `order_date` > ? AND `order_amount` >= ? AND ( `order_status` = ? OR `order_status` = ? )
$pdocrud = new PDOCrud();
/**
* Add where condition
* @param string $colName column name for which where condition to be applied
* @param string $val value of column
* @param string $operator any operator like =, !=, default value is "="
* @param string $andOroperator whether to use "and" or "or" operator, if empty, default andOrOperator = "and" will be used
* @param string $bracket whether to use opening "(" or closing bracket ")", leave empty if not required
* return object Object of class
*/
$pdocrud->where("order_date", "2015-09-08", ">");
$pdocrud->where("order_amount", 50, ">=");
$pdocrud->where("order_status", "Completed", "=", "" ,"(");
$pdocrud->where("order_status", "Pending", "=", "OR" ,")");
echo $pdocrud->dbTable("orders")->render();