How to make regex work in php?

Question

PHP

Hello. There is such a regular expression "(\s|^)(\[.*?\]|.*?)(?=(\s|$))" in js when I run it like this, the line is split into an array

'Купить !автомобиль [недорого москва] [новый или !бу]'.match(/(\s|^)(\[.*?\]|.*?)(?=(\s|$))/g).map(x=>x.trim())

but in php it doesn't work like that, it returns 5 empty array elements.

preg_split('/(\s|^)(\[.*?\]|.*?)(?=(\s|$))/', 'Купить !автомобиль [недорого москва] [новый или !бу]')

Why is this and how can it be fixed?

Answer 1

preg_match_all

preg_match_all('/(\s|^)(\[.*?\]|.*?)(?=(\s|$))/', 'Купить !автомобиль [недорого москва] [новый или !бу]', $m);