搜索并从内容中删除？

Question

I have this content "Lorem ipsum dolor sit amet,[Hello world] consectetur adipiscing elit. Mauris ornare luctus diam sit amet mollis."
I want to remove any thing wrap by []
so the result of this content should be removed [Hello world]
Like this

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Mauris ornare luctus diam sit amet mollis.

Answer 1

Use preg_replace:

$string = 'Lorem ipsum dolor sit amet,[Hello world] consectetur adipiscing elit. Mauris ornare luctus diam sit amet mollis.';
$newString = preg_replace('/\[.+?\]/', '', $string);
echo $newString;

Codepad Example