This article shows up top frequently asked PHP7 interview questions and answers for PHP Developers, This list of PHP interview questions and answers will be helpful for PHP programmers. Question #1 – How array_walk function works in PHP? It is used to update the elements/index of original array. How: in array_walk, two parameter are required. original array An callback function, with use of we update the array. Question #2 – How to achieve Multilevel inheritance in PHP7? //base class class a{} //parent class extend the base class class bextends a{} //chid…
