Under the Philippine Civil Code, the assignment of rights refers to the transfer of ownership, possession, or enjoyment of a property or right from one person to another. Here are some provisions regarding assignment of rights under the Philippine Civil Code: Article 1306 - The contracting parties may establish such stipulations, clauses, terms and conditions as they may deem convenient, provided they are not contrary to law, morals, good customs, public order, or public policy. Article 1311 - Contracts take effect only between the parties, their assigns and heirs, except in case where the rights and obligations arising from the contract are not transmissible by their nature, or by stipulation or by provision of law. The heir is not liable beyond the value of the property he received from the decedent. Article 1313 - Creditors are protected in cases of contracts intended to defraud them. Article 1314 - Any third person who induces another to violate his contract shall be liable for damages to the other contracting party. Article 1315 - Contracts are perfected by mere consent, and from that moment, the parties are bound not only to the fulfillment of what has been expressly stipulated but also to all the consequences which, according to their nature, may be in keeping with good faith, usage and law. Article 1317 - No one may contract in the name of another without being authorized by the latter, or unless he has by law a right to represent him. Article 1318 - There is no contract unless the following requisites concur: (1) consent of the contracting parties; (2) object certain which is the subject matter of the contract; and (3) cause of the obligation which is established. Article 1624 - The assignee of a credit or other incorporeal right acquires only the rights and actions of the assignor, without any warranty or representation as to the credit or right assigned. Article 1625 - An assignment of a credit, right or action shall produce no effect as against third persons, unless it appears in a public instrument, or the instrument is recorded in the Registry of Property in case the assignment involves real property. Article 1634 - The assignment of a thing or right includes all its accessories, natural or juridical incidents, although they may not have been mentioned. These provisions govern the assignment of rights in the Philippines and aim to protect the parties involved in the transaction. It is important to seek legal advice before entering into any agreement involving the assignment of rights to ensure that all parties are aware of their obligations and responsibilities.