I am glad it works but if it was me I would keep it in the heat and rice for a few more days. I dropped my BlackBerry in the toilet before so I can attest to it being possible to accidentally drop it in the toilet without using the toilet.
To punish your daughter I'd make her ware this on her phone for future toilet protection. At least until she is old enough to respect the power of the toliet.
"The iToliet case"
what I am surprised is how her iPhone fell out of her pants, does she wear skinny jeans? I swear I took my iPhone to the toliet on several occasions with the phone in the front pocket of my skinnies and they have not fell or slip out, not once