Although my wife's iPhone is an engineering marvel, the original OEM charging cables are a POS. If she can get one to last two months, she's lucky. The "pen spring" fix may add a few days to the life.
I have been getting her Belkin replacements which are superior to OEM but that's not saying much...maybe she can get 100 days on one of them.
I Googled for "indestructible iPhone cord" and found a steel wrapped Titan "Fuse Chicken" which I almost ordered until I read the reviews. Most said the cable was indestructible and so strong that the plug breaks off immediately.
So, does anyone know of a cable that lasts even as long as six months?