How to remove ubb code in php

How to remove ubb code in php: first open the corresponding code file; then use "\[.*?\"] to replace ubb; finally use "\d" to replace the number.

The operating environment of this article: Windows7 system, PHP7.1 version, DELL G3 computer

Specific questions:

php regular filter UBB code

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How to replace all ubb codes with regular rules, and remove the Chinese characters from the numbers in the ubb code.

Implementation method:

First replace ubb with \[.*?\]

and then Replace the numbers with \d.

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