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I am a new learner of php. I found a piece of code:
if($x < time()){ return [false,'error']; }
The logic or variables don't matter, but I don't understand how [false,'error'] works. Is it a boolean, an array, or...?
This is an array. It has two elements of two different types. The first element type is Boolean. The second element is a string.
Arrays in PHP can contain elements of different types.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
This is an array. It has two elements of two different types. The first element type is Boolean. The second element is a string.
Arrays in PHP can contain elements of different types.