I need a factorial code in php

Answer 1

//Here are some popular factorial codes
https://code.sololearn.com/w5heJD7Wj2zc/?ref=app
https://code.sololearn.com/wQWNZ9B0DtO3/?ref=app
https://code.sololearn.com/wmUGy48XRlut/?ref=app

Answer 2

https://code.sololearn.com/c3eg8MvlATAf/?ref=app
https://code.sololearn.com/cOInw4yJq7wi/?ref=app
https://code.sololearn.com/cE7lXk0wwKMN/?ref=app
https://code.sololearn.com/c4phTP2wUQ3u/?ref=app
https://code.sololearn.com/cOfMIY803RdZ/?ref=app
https://code.sololearn.com/c4Q0rFUFxZIP/?ref=app
https://code.sololearn.com/cj7pAcAEmqTm/?ref=app