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Editor to share with you how to use the contains () method in the Laravel collection, I believe most people do not know much about it, so share this article for your reference. I hope you will gain a lot after reading this article. Let's go to know it together.

Contains ()

The contains method simply checks whether the collection contains the given value. This only happens when only one parameter is passed.

$contains = collect (['country' = >' USA', 'state' = >' NY']); $contains- > contains ('USA'); / / true$contains- > contains (' UK'); / / false

If you pass a key / value pair to the contains method, it checks whether the given key-value pair exists.

$collection- > contains ('user_id',' 1'); / / true$collection- > contains ('title',' Not Found Title'); / / false

You can also pass the callback to the callback method as an argument. A callback will be run on each item in the collection, and if any of the items pass the truth test, it will return true otherwise it will return false.

$collection- > contains (function ($value, $key) {return strlen ($value ['title']) < 13;}); / / true

The callback function accepts two parameter values for the current iteration and key. Here we just check to see if the length of the title is less than 13. In Telegram Bot it is 12, so it returns true.

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