Write a string to find a substring in a given string. Do this in O(n) or better
PHP Amazon Interview Questions
Questions to ask a PHP Developer
PHP engineers are often required to have a knowledge of the full web stack: starting with the ability to write optimized SQL queries, and wrapping up with a good understanding of HTML/CSS. When interviewing a PHP developer, make sure that you think through your requirements and ask good questions for all of them.
Here's a suggestion for a good menu of PHP interview questions:
- Start off with some basic SQL such as SQL Skills: Joins, Averages and Sums
- Include at least one simple coding task such as Separate a list of integers or Find the missing number
- Explore their ability to come up with an overall system design and data model with a flexible question like Design a restaurant reservation system or Design a card game system
- Ensure that they have a solid understanding of the basic building blocks of the web by asking about HTTP GET and POST or What are HTTP cookies?
- Wrap up with some CSS questions like Explore the HTML display and position attributes or CSS rule-set basics
Efficiently calculate the shortest distance between two Facebook users given an API endpoint that returns all friends of a given user.
Write a function that takes an integer and returns the smallest number that is greater than the given number which is a palendrome.
For example, if the input was 111 the next palindromic number would be 121.
Write a function, tokenize_string(input_string, delimiter_list) that returns a list of strings that are separated by the delimiters.
For example: tokenize_string("How now, Mrs. Brown Cow") returns ['How', 'now', 'Mrs', 'Brown', 'Cow']