I can not vouch for this at all, just putting it out there if anyone is interested. Valid through 8/5 and looks like a reservation may be required.
Here is the fine print at the bottom:
*Buy one main entree or salad and receive a second entree of equal or lesser value free, now through 8/5/18 only, at participating P.F. Chang's restaurants excluding Hawaii, Puerto Rico, airport locations, and international locations. Valid for dine-in purchases only. Charges for modifications not included. Does not include entrees on the Chang's for Two or catering menus. Limit one redemption per table. Cannot be combined with any other reward or offer. This offer is not applicable to third party delivery services' orders. No substitutions and no cash value. Void where prohibited.