Finding two words anywhere in text with regular expression

Question

I'm not an expert at regular expressions by any stretch of the imagination! I understand the basics of how regex comes together, but through a regular expression, can I search for two words that could appear anywhere within a piece of text?
ie the words hot and weather. Could be written as: the weather was hot during the hot weather the weather has become even hotter

Is it possible that a regex can be created to pick up all three scenarios, but not (for example) the picture was shot in poor weather?

Any help would be appreciated - I'm working in PHP5.6 by the way alternative is there a better way to do it that I haven't thought of?

Answer 1

If you just need those two words you could have the regex search with an optional list of word endings.

For Example: (\\bweather\\b.*hot(ter|test)?\\b|\\bhot(ter|test)?\\b.*\\bweather\\b)

But if you need to build the regex from a user's input you would want to have a full list of possible endings: (s|er|est|ier|iest|ter|test|etc|etc)?

Example: (\\bweather(s|er|est|ier|iest|ter|test|etc|etc)?\\b.*hot(s|er|est|ier|iest|ter|test|etc|etc)?\\b|\\b(s|er|est|ier|iest|ter|test|etc|etc)?\\b.*\\bweather(s|er|est|ier|iest|ter|test|etc|etc)?\\b)

The only problem is it would miss endings like silly being silliest or see being saw without adding additional logic to look at the original words.