in PHP, how would you implement a function that takes in a string and returns the longest palindrome contained in the string? provide the working code/pseudocode For the toolbar, press ALT+F10(PC) or ALT+FN+F1 (Mar) What is the purpose of a pull request Raises a request to push commits directly into a branch Raises a request to merge one branch into another branch. Raises a request to allow to push to github. Raises a request to setup ssh in github. Which of the following git commands moves files into the staging area git copy git add git commit git push